diff --git a/spring-boot-project/spring-boot-autoconfigure/build.gradle b/spring-boot-project/spring-boot-autoconfigure/build.gradle
index fe176b12d48..0c84af5666d 100644
--- a/spring-boot-project/spring-boot-autoconfigure/build.gradle
+++ b/spring-boot-project/spring-boot-autoconfigure/build.gradle
@@ -12,8 +12,6 @@ description = "Spring Boot AutoConfigure"
 dependencies {
 	api(project(":spring-boot-project:spring-boot"))
 
-	optional("com.atomikos:transactions-jdbc")
-	optional("com.atomikos:transactions-jta")
 	optional("com.fasterxml.jackson.core:jackson-databind")
 	optional("com.fasterxml.jackson.dataformat:jackson-dataformat-cbor")
 	optional("com.fasterxml.jackson.dataformat:jackson-dataformat-xml")
@@ -94,6 +92,7 @@ dependencies {
 	optional("org.aspectj:aspectjweaver")
 	optional("org.eclipse.jetty:jetty-webapp") {
 		exclude group: "javax.servlet", module: "javax.servlet-api"
+		exclude(group: "org.eclipse.jetty", module: "jetty-jndi")
 	}
 	optional("org.eclipse.jetty:jetty-reactive-httpclient")
 	optional("org.eclipse.jetty.websocket:javax-websocket-server-impl") {	
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/AtomikosJtaConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/AtomikosJtaConfiguration.java
deleted file mode 100644
index 393494c0a23..00000000000
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/AtomikosJtaConfiguration.java
+++ /dev/null
@@ -1,124 +0,0 @@
-/*
- * Copyright 2012-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.autoconfigure.transaction.jta;
-
-import java.io.File;
-import java.util.Properties;
-
-import javax.jms.Message;
-import javax.transaction.TransactionManager;
-import javax.transaction.UserTransaction;
-
-import com.atomikos.icatch.config.UserTransactionService;
-import com.atomikos.icatch.config.UserTransactionServiceImp;
-import com.atomikos.icatch.jta.UserTransactionManager;
-
-import org.springframework.beans.factory.ObjectProvider;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
-import org.springframework.boot.autoconfigure.transaction.TransactionManagerCustomizers;
-import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.boot.jdbc.XADataSourceWrapper;
-import org.springframework.boot.jms.XAConnectionFactoryWrapper;
-import org.springframework.boot.jta.atomikos.AtomikosDependsOnBeanFactoryPostProcessor;
-import org.springframework.boot.jta.atomikos.AtomikosProperties;
-import org.springframework.boot.jta.atomikos.AtomikosXAConnectionFactoryWrapper;
-import org.springframework.boot.jta.atomikos.AtomikosXADataSourceWrapper;
-import org.springframework.boot.system.ApplicationHome;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-import org.springframework.transaction.jta.JtaTransactionManager;
-import org.springframework.util.StringUtils;
-
-/**
- * JTA Configuration for <A href="https://www.atomikos.com/">Atomikos</a>.
- *
- * @author Josh Long
- * @author Phillip Webb
- * @author Andy Wilkinson
- * @author Stephane Nicoll
- * @author Kazuki Shimizu
- */
-@Configuration(proxyBeanMethods = false)
-@EnableConfigurationProperties({ AtomikosProperties.class, JtaProperties.class })
-@ConditionalOnClass({ JtaTransactionManager.class, UserTransactionManager.class })
-@ConditionalOnMissingBean(org.springframework.transaction.TransactionManager.class)
-class AtomikosJtaConfiguration {
-
-	@Bean(initMethod = "init", destroyMethod = "shutdownWait")
-	@ConditionalOnMissingBean(UserTransactionService.class)
-	UserTransactionServiceImp userTransactionService(AtomikosProperties atomikosProperties,
-			JtaProperties jtaProperties) {
-		Properties properties = new Properties();
-		if (StringUtils.hasText(jtaProperties.getTransactionManagerId())) {
-			properties.setProperty("com.atomikos.icatch.tm_unique_name", jtaProperties.getTransactionManagerId());
-		}
-		properties.setProperty("com.atomikos.icatch.log_base_dir", getLogBaseDir(jtaProperties));
-		properties.putAll(atomikosProperties.asProperties());
-		return new UserTransactionServiceImp(properties);
-	}
-
-	private String getLogBaseDir(JtaProperties jtaProperties) {
-		if (StringUtils.hasLength(jtaProperties.getLogDir())) {
-			return jtaProperties.getLogDir();
-		}
-		File home = new ApplicationHome().getDir();
-		return new File(home, "transaction-logs").getAbsolutePath();
-	}
-
-	@Bean(initMethod = "init", destroyMethod = "close")
-	@ConditionalOnMissingBean(TransactionManager.class)
-	UserTransactionManager atomikosTransactionManager(UserTransactionService userTransactionService) throws Exception {
-		UserTransactionManager manager = new UserTransactionManager();
-		manager.setStartupTransactionService(false);
-		manager.setForceShutdown(true);
-		return manager;
-	}
-
-	@Bean
-	@ConditionalOnMissingBean(XADataSourceWrapper.class)
-	AtomikosXADataSourceWrapper xaDataSourceWrapper() {
-		return new AtomikosXADataSourceWrapper();
-	}
-
-	@Bean
-	@ConditionalOnMissingBean
-	static AtomikosDependsOnBeanFactoryPostProcessor atomikosDependsOnBeanFactoryPostProcessor() {
-		return new AtomikosDependsOnBeanFactoryPostProcessor();
-	}
-
-	@Bean
-	JtaTransactionManager transactionManager(UserTransaction userTransaction, TransactionManager transactionManager,
-			ObjectProvider<TransactionManagerCustomizers> transactionManagerCustomizers) {
-		JtaTransactionManager jtaTransactionManager = new JtaTransactionManager(userTransaction, transactionManager);
-		transactionManagerCustomizers.ifAvailable((customizers) -> customizers.customize(jtaTransactionManager));
-		return jtaTransactionManager;
-	}
-
-	@Configuration(proxyBeanMethods = false)
-	@ConditionalOnClass(Message.class)
-	static class AtomikosJtaJmsConfiguration {
-
-		@Bean
-		@ConditionalOnMissingBean(XAConnectionFactoryWrapper.class)
-		AtomikosXAConnectionFactoryWrapper xaConnectionFactoryWrapper() {
-			return new AtomikosXAConnectionFactoryWrapper();
-		}
-
-	}
-
-}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfiguration.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfiguration.java
index f4d62b49318..fadeabbd218 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfiguration.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfiguration.java
@@ -40,7 +40,7 @@ import org.springframework.context.annotation.Import;
 @ConditionalOnProperty(prefix = "spring.jta", value = "enabled", matchIfMissing = true)
 @AutoConfigureBefore({ XADataSourceAutoConfiguration.class, ActiveMQAutoConfiguration.class,
 		ArtemisAutoConfiguration.class, HibernateJpaAutoConfiguration.class })
-@Import({ JndiJtaConfiguration.class, AtomikosJtaConfiguration.class })
+@Import(JndiJtaConfiguration.class)
 public class JtaAutoConfiguration {
 
 }
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaProperties.java b/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaProperties.java
deleted file mode 100644
index 0d8bc426126..00000000000
--- a/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/transaction/jta/JtaProperties.java
+++ /dev/null
@@ -1,61 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.autoconfigure.transaction.jta;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.transaction.jta.JtaTransactionManager;
-
-/**
- * External configuration properties for a {@link JtaTransactionManager} created by
- * Spring. All {@literal spring.jta.} properties are also applied to the appropriate
- * vendor specific configuration.
- *
- * @author Josh Long
- * @author Phillip Webb
- * @author Andy Wilkinson
- * @since 1.2.0
- */
-@ConfigurationProperties(prefix = "spring.jta", ignoreUnknownFields = true)
-public class JtaProperties {
-
-	/**
-	 * Transaction logs directory.
-	 */
-	private String logDir;
-
-	/**
-	 * Transaction manager unique identifier.
-	 */
-	private String transactionManagerId;
-
-	public void setLogDir(String logDir) {
-		this.logDir = logDir;
-	}
-
-	public String getLogDir() {
-		return this.logDir;
-	}
-
-	public String getTransactionManagerId() {
-		return this.transactionManagerId;
-	}
-
-	public void setTransactionManagerId(String transactionManagerId) {
-		this.transactionManagerId = transactionManagerId;
-	}
-
-}
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java
index b526445c783..159327068a9 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfigurationTests.java
@@ -75,6 +75,7 @@ import org.springframework.orm.jpa.JpaVendorAdapter;
 import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
 import org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
+import org.springframework.transaction.jta.JtaTransactionManager;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatNoException;
@@ -214,7 +215,7 @@ class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTes
 
 	@Test
 	void jtaDefaultPlatform() {
-		contextRunner().withConfiguration(AutoConfigurations.of(JtaAutoConfiguration.class))
+		contextRunner().withUserConfiguration(JtaTransactionManagerConfiguration.class)
 				.run(assertJtaPlatform(SpringJtaPlatform.class));
 	}
 
@@ -298,7 +299,7 @@ class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTes
 
 	@Test
 	void providerDisablesAutoCommitIsNotConfiguredWithJta() {
-		contextRunner().withConfiguration(AutoConfigurations.of(JtaAutoConfiguration.class))
+		contextRunner().withUserConfiguration(JtaTransactionManagerConfiguration.class)
 				.withPropertyValues("spring.datasource.type:" + HikariDataSource.class.getName(),
 						"spring.datasource.hikari.auto-commit:false")
 				.run((context) -> {
@@ -677,4 +678,17 @@ class HibernateJpaAutoConfigurationTests extends AbstractJpaAutoConfigurationTes
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	static class JtaTransactionManagerConfiguration {
+
+		@Bean
+		JtaTransactionManager jtaTransactionManager() {
+			JtaTransactionManager jtaTransactionManager = new JtaTransactionManager();
+			jtaTransactionManager.setUserTransaction(mock(UserTransaction.class));
+			jtaTransactionManager.setTransactionManager(mock(TransactionManager.class));
+			return jtaTransactionManager;
+		}
+
+	}
+
 }
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfigurationTests.java
index f25bcdcf70b..32b55b67f0b 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/transaction/jta/JtaAutoConfigurationTests.java
@@ -16,29 +16,16 @@
 
 package org.springframework.boot.autoconfigure.transaction.jta;
 
-import java.io.File;
-import java.nio.file.Path;
 import java.util.Arrays;
 import java.util.List;
 import java.util.Properties;
 
-import javax.jms.ConnectionFactory;
-import javax.jms.TemporaryQueue;
-import javax.jms.XAConnection;
-import javax.jms.XAConnectionFactory;
-import javax.jms.XASession;
 import javax.naming.Context;
 import javax.naming.InitialContext;
 import javax.naming.NamingException;
-import javax.sql.DataSource;
-import javax.sql.XADataSource;
 import javax.transaction.TransactionManager;
 import javax.transaction.UserTransaction;
-import javax.transaction.xa.XAResource;
 
-import com.atomikos.icatch.config.UserTransactionService;
-import com.atomikos.icatch.jta.UserTransactionManager;
-import com.atomikos.jms.AtomikosConnectionFactoryBean;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.AfterEachCallback;
@@ -49,21 +36,13 @@ import org.junit.jupiter.api.extension.ExtensionContext.Namespace;
 import org.junit.jupiter.api.extension.ParameterContext;
 import org.junit.jupiter.api.extension.ParameterResolutionException;
 import org.junit.jupiter.api.extension.ParameterResolver;
-import org.junit.jupiter.api.io.TempDir;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
 import org.osjava.sj.loader.JndiLoader;
 
 import org.springframework.beans.factory.NoSuchBeanDefinitionException;
-import org.springframework.boot.autoconfigure.transaction.TransactionAutoConfiguration;
-import org.springframework.boot.jdbc.XADataSourceWrapper;
-import org.springframework.boot.jms.XAConnectionFactoryWrapper;
-import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;
-import org.springframework.boot.jta.atomikos.AtomikosDependsOnBeanFactoryPostProcessor;
-import org.springframework.boot.jta.atomikos.AtomikosProperties;
 import org.springframework.boot.test.util.TestPropertyValues;
-import org.springframework.boot.testsupport.BuildOutput;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
@@ -72,7 +51,6 @@ import org.springframework.transaction.jta.UserTransactionAdapter;
 
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
-import static org.mockito.BDDMockito.given;
 import static org.mockito.Mockito.mock;
 
 /**
@@ -86,9 +64,6 @@ import static org.mockito.Mockito.mock;
  */
 class JtaAutoConfigurationTests {
 
-	private final File atomikosLogs = new File(new BuildOutput(JtaAutoConfigurationTests.class).getRootLocation(),
-			"atomikos-logs");
-
 	private AnnotationConfigApplicationContext context;
 
 	@AfterEach
@@ -132,81 +107,14 @@ class JtaAutoConfigurationTests {
 	}
 
 	@Test
-	void disableJtaSupport() {
+	@ExtendWith(JndiExtension.class)
+	void disableJtaSupport(InitialContext initialContext) throws NamingException {
+		new JndiEntry("java:comp/UserTransaction", UserTransaction.class).register(initialContext);
 		this.context = new AnnotationConfigApplicationContext();
 		TestPropertyValues.of("spring.jta.enabled:false").applyTo(this.context);
 		this.context.register(JtaAutoConfiguration.class);
 		this.context.refresh();
 		assertThat(this.context.getBeansOfType(JtaTransactionManager.class)).isEmpty();
-		assertThat(this.context.getBeansOfType(XADataSourceWrapper.class)).isEmpty();
-		assertThat(this.context.getBeansOfType(XAConnectionFactoryWrapper.class)).isEmpty();
-	}
-
-	@Test
-	void atomikosSanityCheck() {
-		this.context = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of("spring.jta.log-dir:" + this.atomikosLogs).applyTo(this.context);
-		this.context.register(JtaProperties.class, AtomikosJtaConfiguration.class);
-		this.context.refresh();
-		this.context.getBean(AtomikosProperties.class);
-		this.context.getBean(UserTransactionService.class);
-		this.context.getBean(UserTransactionManager.class);
-		this.context.getBean(UserTransaction.class);
-		this.context.getBean(XADataSourceWrapper.class);
-		this.context.getBean(XAConnectionFactoryWrapper.class);
-		this.context.getBean(AtomikosDependsOnBeanFactoryPostProcessor.class);
-		this.context.getBean(JtaTransactionManager.class);
-	}
-
-	@Test
-	void defaultAtomikosTransactionManagerName(@TempDir Path dir) {
-		this.context = new AnnotationConfigApplicationContext();
-		File logs = new File(dir.toFile(), "jta");
-		TestPropertyValues.of("spring.jta.logDir:" + logs.getAbsolutePath()).applyTo(this.context);
-		this.context.register(AtomikosJtaConfiguration.class);
-		this.context.refresh();
-
-		File epochFile = new File(logs, "tmlog0.log");
-		assertThat(epochFile.isFile()).isTrue();
-	}
-
-	@Test
-	void atomikosConnectionFactoryPoolConfiguration() {
-		this.context = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of("spring.jta.atomikos.connectionfactory.minPoolSize:5",
-				"spring.jta.atomikos.connectionfactory.maxPoolSize:10", "spring.jta.log-dir:" + this.atomikosLogs)
-				.applyTo(this.context);
-		this.context.register(AtomikosJtaConfiguration.class, PoolConfiguration.class);
-		this.context.refresh();
-		AtomikosConnectionFactoryBean connectionFactory = this.context.getBean(AtomikosConnectionFactoryBean.class);
-		assertThat(connectionFactory.getMinPoolSize()).isEqualTo(5);
-		assertThat(connectionFactory.getMaxPoolSize()).isEqualTo(10);
-	}
-
-	@Test
-	void atomikosDataSourcePoolConfiguration() {
-		this.context = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of("spring.jta.atomikos.datasource.minPoolSize:5",
-				"spring.jta.atomikos.datasource.maxPoolSize:10", "spring.jta.log-dir:" + this.atomikosLogs)
-				.applyTo(this.context);
-		this.context.register(AtomikosJtaConfiguration.class, PoolConfiguration.class);
-		this.context.refresh();
-		AtomikosDataSourceBean dataSource = this.context.getBean(AtomikosDataSourceBean.class);
-		assertThat(dataSource.getMinPoolSize()).isEqualTo(5);
-		assertThat(dataSource.getMaxPoolSize()).isEqualTo(10);
-	}
-
-	@Test
-	void atomikosCustomizeJtaTransactionManagerUsingProperties() {
-		this.context = new AnnotationConfigApplicationContext();
-		TestPropertyValues.of("spring.transaction.default-timeout:30",
-				"spring.transaction.rollback-on-commit-failure:true", "spring.jta.log-dir:" + this.atomikosLogs)
-				.applyTo(this.context);
-		this.context.register(AtomikosJtaConfiguration.class, TransactionAutoConfiguration.class);
-		this.context.refresh();
-		JtaTransactionManager transactionManager = this.context.getBean(JtaTransactionManager.class);
-		assertThat(transactionManager.getDefaultTimeout()).isEqualTo(30);
-		assertThat(transactionManager.isRollbackOnCommitFailure()).isTrue();
 	}
 
 	@Configuration(proxyBeanMethods = false)
@@ -219,31 +127,6 @@ class JtaAutoConfigurationTests {
 
 	}
 
-	@Configuration(proxyBeanMethods = false)
-	static class PoolConfiguration {
-
-		@Bean
-		ConnectionFactory pooledConnectionFactory(XAConnectionFactoryWrapper wrapper) throws Exception {
-			XAConnectionFactory connectionFactory = mock(XAConnectionFactory.class);
-			XAConnection connection = mock(XAConnection.class);
-			XASession session = mock(XASession.class);
-			TemporaryQueue queue = mock(TemporaryQueue.class);
-			XAResource resource = mock(XAResource.class);
-			given(connectionFactory.createXAConnection()).willReturn(connection);
-			given(connection.createXASession()).willReturn(session);
-			given(session.createTemporaryQueue()).willReturn(queue);
-			given(session.getXAResource()).willReturn(resource);
-			return wrapper.wrapConnectionFactory(connectionFactory);
-		}
-
-		@Bean
-		DataSource pooledDataSource(XADataSourceWrapper wrapper) throws Exception {
-			XADataSource dataSource = mock(XADataSource.class);
-			return wrapper.wrapDataSource(dataSource);
-		}
-
-	}
-
 	private static final class JndiEntry {
 
 		private final String name;
diff --git a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/anchor-rewrite.properties b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/anchor-rewrite.properties
index f161d4ac33d..d91405888ca 100644
--- a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/anchor-rewrite.properties
+++ b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/anchor-rewrite.properties
@@ -793,10 +793,9 @@ features.caching.provider.caffeine=io.caching.provider.caffeine
 features.caching.provider.simple=io.caching.provider.simple
 features.caching.provider.none=io.caching.provider.none
 features.jta=io.jta
-features.jta.atomikos=io.jta.atomikos
-features.jta.javaee=io.jta.javaee
+features.jta.javaee=io.jta.jakartaee
 features.jta.mixing-xa-and-non-xa-connections=io.jta.mixing-xa-and-non-xa-connections
-features.jta.supporting-alternative-embedded-transaction-manager=io.jta.supporting-alternative-embedded-transaction-manager
+features.jta.supporting-alternative-embedded-transaction-manager=io.jta.supporting-embedded-transaction-manager
 features.email=io.email
 features.quartz=io.quartz
 features.resttemplate=io.rest-client.resttemplate
diff --git a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/io/jta.adoc b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/io/jta.adoc
index 29cdc2779d7..0286712262e 100644
--- a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/io/jta.adoc
+++ b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/io/jta.adoc
@@ -1,7 +1,6 @@
 [[io.jta]]
 == Distributed Transactions with JTA
-Spring Boot supports distributed JTA transactions across multiple XA resources by using an https://www.atomikos.com/[Atomikos] embedded transaction manager.
-JTA transactions are also supported when deploying to a suitable Java EE Application Server.
+Spring Boot supports distributed JTA transactions across multiple XA resources by using a transaction manager retrieved from JNDI.
 
 When a JTA environment is detected, Spring's `JtaTransactionManager` is used to manage transactions.
 Auto-configured JMS, DataSource, and JPA beans are upgraded to support XA transactions.
@@ -10,28 +9,11 @@ If you are within a JTA environment and still want to use local transactions, yo
 
 
 
-[[io.jta.atomikos]]
-=== Using an Atomikos Transaction Manager
-https://www.atomikos.com/[Atomikos] is a popular open source transaction manager which can be embedded into your Spring Boot application.
-You can use the `spring-boot-starter-jta-atomikos` starter to pull in the appropriate Atomikos libraries.
-Spring Boot auto-configures Atomikos and ensures that appropriate `depends-on` settings are applied to your Spring beans for correct startup and shutdown ordering.
-
-By default, Atomikos transaction logs are written to a `transaction-logs` directory in your application's home directory (the directory in which your application jar file resides).
-You can customize the location of this directory by setting a configprop:spring.jta.log-dir[] property in your `application.properties` file.
-Properties starting with `spring.jta.atomikos.properties` can also be used to customize the Atomikos `UserTransactionServiceImp`.
-See the {spring-boot-module-api}/jta/atomikos/AtomikosProperties.html[`AtomikosProperties` Javadoc] for complete details.
-
-NOTE: To ensure that multiple transaction managers can safely coordinate the same resource managers, each Atomikos instance must be configured with a unique ID.
-By default, this ID is the IP address of the machine on which Atomikos is running.
-To ensure uniqueness in production, you should configure the configprop:spring.jta.transaction-manager-id[] property with a different value for each instance of your application.
-
-
-
-[[io.jta.javaee]]
-=== Using a Java EE Managed Transaction Manager
-If you package your Spring Boot application as a `war` or `ear` file and deploy it to a Java EE application server, you can use your application server's built-in transaction manager.
+[[io.jta.jakartaee]]
+=== Using a Jakarta EE Managed Transaction Manager
+If you package your Spring Boot application as a `war` or `ear` file and deploy it to a Jakarta EE application server, you can use your application server's built-in transaction manager.
 Spring Boot tries to auto-configure a transaction manager by looking at common JNDI locations (`java:comp/UserTransaction`, `java:comp/TransactionManager`, and so on).
-If you use a transaction service provided by your application server, you generally also want to ensure that all resources are managed by the server and exposed over JNDI.
+When using a transaction service provided by your application server, you generally also want to ensure that all resources are managed by the server and exposed over JNDI.
 Spring Boot tries to auto-configure JMS by looking for a `ConnectionFactory` at the JNDI path (`java:/JmsXA` or `java:/XAConnectionFactory`), and you can use the <<data#data.sql.datasource.jndi, configprop:spring.datasource.jndi-name[] property>> to configure your `DataSource`.
 
 
@@ -65,10 +47,8 @@ include::{docs-java}/io/jta/mixingxaandnonxaconnections/xa/MyBean.java[tag=*]
 
 
 
-[[io.jta.supporting-alternative-embedded-transaction-manager]]
-=== Supporting an Alternative Embedded Transaction Manager
-The {spring-boot-module-code}/jms/XAConnectionFactoryWrapper.java[`XAConnectionFactoryWrapper`] and {spring-boot-module-code}/jdbc/XADataSourceWrapper.java[`XADataSourceWrapper`] interfaces can be used to support alternative embedded transaction managers.
+[[io.jta.supporting-embedded-transaction-manager]]
+=== Supporting an Embedded Transaction Manager
+The {spring-boot-module-code}/jms/XAConnectionFactoryWrapper.java[`XAConnectionFactoryWrapper`] and {spring-boot-module-code}/jdbc/XADataSourceWrapper.java[`XADataSourceWrapper`] interfaces can be used to support embedded transaction managers.
 The interfaces are responsible for wrapping `XAConnectionFactory` and `XADataSource` beans and exposing them as regular `ConnectionFactory` and `DataSource` beans, which transparently enroll in the distributed transaction.
 DataSource and JMS auto-configuration use JTA variants, provided you have a `JtaTransactionManager` bean and appropriate XA wrapper beans registered within your `ApplicationContext`.
-
-The {spring-boot-module-code}/jta/atomikos/AtomikosXAConnectionFactoryWrapper.java[AtomikosXAConnectionFactoryWrapper] and {spring-boot-module-code}/jta/atomikos/AtomikosXADataSourceWrapper.java[AtomikosXADataSourceWrapper] provide good examples of how to write XA wrappers.
diff --git a/spring-boot-project/spring-boot-starters/spring-boot-starter-jta-atomikos/build.gradle b/spring-boot-project/spring-boot-starters/spring-boot-starter-jta-atomikos/build.gradle
deleted file mode 100644
index cc9c208b503..00000000000
--- a/spring-boot-project/spring-boot-starters/spring-boot-starter-jta-atomikos/build.gradle
+++ /dev/null
@@ -1,13 +0,0 @@
-plugins {
-	id "org.springframework.boot.starter"
-}
-
-description = "Starter for JTA transactions using Atomikos"
-
-dependencies {
-	api(project(":spring-boot-project:spring-boot-starters:spring-boot-starter"))
-	api("com.atomikos:transactions-jms")
-	api("com.atomikos:transactions-jta")
-	api("com.atomikos:transactions-jdbc")
-	api("jakarta.transaction:jakarta.transaction-api")
-}
diff --git a/spring-boot-project/spring-boot/build.gradle b/spring-boot-project/spring-boot/build.gradle
index 05dcde61228..9d6750e254b 100644
--- a/spring-boot-project/spring-boot/build.gradle
+++ b/spring-boot-project/spring-boot/build.gradle
@@ -22,9 +22,6 @@ dependencies {
 	api("org.springframework:spring-context")
 
 	optional("ch.qos.logback:logback-classic")
-	optional("com.atomikos:transactions-jdbc")
-	optional("com.atomikos:transactions-jms")
-	optional("com.atomikos:transactions-jta")
 	optional("com.fasterxml.jackson.core:jackson-databind")
 	optional("com.h2database:h2")
 	optional("com.google.code.gson:gson")
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBean.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBean.java
deleted file mode 100644
index 829f80687f0..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBean.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import org.springframework.beans.factory.BeanNameAware;
-import org.springframework.beans.factory.DisposableBean;
-import org.springframework.beans.factory.InitializingBean;
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.util.StringUtils;
-
-/**
- * Spring friendly version of {@link com.atomikos.jms.AtomikosConnectionFactoryBean}.
- *
- * @author Phillip Webb
- * @author Andy Wilkinson
- * @since 1.2.0
- */
-@SuppressWarnings("serial")
-@ConfigurationProperties(prefix = "spring.jta.atomikos.connectionfactory")
-public class AtomikosConnectionFactoryBean extends com.atomikos.jms.AtomikosConnectionFactoryBean
-		implements BeanNameAware, InitializingBean, DisposableBean {
-
-	private String beanName;
-
-	@Override
-	public void setBeanName(String name) {
-		this.beanName = name;
-	}
-
-	@Override
-	public void afterPropertiesSet() throws Exception {
-		if (!StringUtils.hasLength(getUniqueResourceName())) {
-			setUniqueResourceName(this.beanName);
-		}
-		init();
-	}
-
-	@Override
-	public void destroy() throws Exception {
-		close();
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBean.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBean.java
deleted file mode 100644
index ca483c0bb38..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBean.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import org.springframework.beans.factory.BeanNameAware;
-import org.springframework.beans.factory.DisposableBean;
-import org.springframework.beans.factory.InitializingBean;
-import org.springframework.boot.context.properties.ConfigurationProperties;
-import org.springframework.util.StringUtils;
-
-/**
- * Spring friendly version of {@link com.atomikos.jdbc.AtomikosDataSourceBean}.
- *
- * @author Phillip Webb
- * @author Andy Wilkinson
- * @since 1.2.0
- */
-@SuppressWarnings("serial")
-@ConfigurationProperties(prefix = "spring.jta.atomikos.datasource")
-public class AtomikosDataSourceBean extends com.atomikos.jdbc.AtomikosDataSourceBean
-		implements BeanNameAware, InitializingBean, DisposableBean {
-
-	private String beanName;
-
-	@Override
-	public void setBeanName(String name) {
-		this.beanName = name;
-	}
-
-	@Override
-	public void afterPropertiesSet() throws Exception {
-		if (!StringUtils.hasLength(getUniqueResourceName())) {
-			setUniqueResourceName(this.beanName);
-		}
-		init();
-	}
-
-	@Override
-	public void destroy() throws Exception {
-		close();
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessor.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessor.java
deleted file mode 100644
index 996b50c1ba6..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessor.java
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import java.util.Arrays;
-import java.util.Collections;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Set;
-
-import com.atomikos.icatch.jta.UserTransactionManager;
-
-import org.springframework.beans.BeansException;
-import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.beans.factory.config.BeanFactoryPostProcessor;
-import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
-import org.springframework.core.Ordered;
-import org.springframework.util.StringUtils;
-
-/**
- * {@link BeanFactoryPostProcessor} to automatically setup the recommended
- * {@link BeanDefinition#setDependsOn(String[]) dependsOn} settings for
- * <a href="https://www.atomikos.com/Documentation/SpringIntegration">correct Atomikos
- * ordering</a>.
- *
- * @author Phillip Webb
- * @since 1.2.0
- */
-public class AtomikosDependsOnBeanFactoryPostProcessor implements BeanFactoryPostProcessor, Ordered {
-
-	private static final String[] NO_BEANS = {};
-
-	private int order = Ordered.LOWEST_PRECEDENCE;
-
-	@Override
-	public void postProcessBeanFactory(ConfigurableListableBeanFactory beanFactory) throws BeansException {
-		String[] transactionManagers = beanFactory.getBeanNamesForType(UserTransactionManager.class, true, false);
-		for (String transactionManager : transactionManagers) {
-			addTransactionManagerDependencies(beanFactory, transactionManager);
-		}
-		addMessageDrivenContainerDependencies(beanFactory, transactionManagers);
-	}
-
-	private void addTransactionManagerDependencies(ConfigurableListableBeanFactory beanFactory,
-			String transactionManager) {
-		BeanDefinition bean = beanFactory.getBeanDefinition(transactionManager);
-		Set<String> dependsOn = new LinkedHashSet<>(asList(bean.getDependsOn()));
-		int initialSize = dependsOn.size();
-		addDependencies(beanFactory, "javax.jms.ConnectionFactory", dependsOn);
-		addDependencies(beanFactory, "javax.sql.DataSource", dependsOn);
-		if (dependsOn.size() != initialSize) {
-			bean.setDependsOn(StringUtils.toStringArray(dependsOn));
-		}
-	}
-
-	private void addMessageDrivenContainerDependencies(ConfigurableListableBeanFactory beanFactory,
-			String[] transactionManagers) {
-		String[] messageDrivenContainers = getBeanNamesForType(beanFactory,
-				"com.atomikos.jms.extra.MessageDrivenContainer");
-		for (String messageDrivenContainer : messageDrivenContainers) {
-			BeanDefinition bean = beanFactory.getBeanDefinition(messageDrivenContainer);
-			Set<String> dependsOn = new LinkedHashSet<>(asList(bean.getDependsOn()));
-			dependsOn.addAll(asList(transactionManagers));
-			bean.setDependsOn(StringUtils.toStringArray(dependsOn));
-		}
-	}
-
-	private void addDependencies(ConfigurableListableBeanFactory beanFactory, String type, Set<String> dependsOn) {
-		dependsOn.addAll(asList(getBeanNamesForType(beanFactory, type)));
-	}
-
-	private String[] getBeanNamesForType(ConfigurableListableBeanFactory beanFactory, String type) {
-		try {
-			return beanFactory.getBeanNamesForType(Class.forName(type), true, false);
-		}
-		catch (ClassNotFoundException | NoClassDefFoundError ex) {
-			// Ignore
-		}
-		return NO_BEANS;
-	}
-
-	private List<String> asList(String[] array) {
-		return (array != null) ? Arrays.asList(array) : Collections.emptyList();
-	}
-
-	@Override
-	public int getOrder() {
-		return this.order;
-	}
-
-	public void setOrder(int order) {
-		this.order = order;
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosProperties.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosProperties.java
deleted file mode 100644
index 82189beba53..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosProperties.java
+++ /dev/null
@@ -1,425 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import java.time.Duration;
-import java.util.Properties;
-
-import org.springframework.boot.context.properties.ConfigurationProperties;
-
-/**
- * Bean friendly variant of
- * <a href="https://www.atomikos.com/Documentation/JtaProperties">Atomikos configuration
- * properties</a>. Allows for setter based configuration and is amiable to relaxed data
- * binding.
- *
- * @author Phillip Webb
- * @author Stephane Nicoll
- * @since 1.2.0
- * @see #asProperties()
- */
-@ConfigurationProperties(prefix = "spring.jta.atomikos.properties")
-public class AtomikosProperties {
-
-	/**
-	 * Transaction manager implementation that should be started.
-	 */
-	private String service;
-
-	/**
-	 * Maximum timeout that can be allowed for transactions.
-	 */
-	private Duration maxTimeout = Duration.ofMillis(300000);
-
-	/**
-	 * Default timeout for JTA transactions.
-	 */
-	private Duration defaultJtaTimeout = Duration.ofMillis(10000);
-
-	/**
-	 * Maximum number of active transactions.
-	 */
-	private int maxActives = 50;
-
-	/**
-	 * Whether to enable disk logging.
-	 */
-	private boolean enableLogging = true;
-
-	/**
-	 * The transaction manager's unique name. Defaults to the machine's IP address. If you
-	 * plan to run more than one transaction manager against one database you must set
-	 * this property to a unique value.
-	 */
-	private String transactionManagerUniqueName;
-
-	/**
-	 * Whether sub-transactions should be joined when possible.
-	 */
-	private boolean serialJtaTransactions = true;
-
-	/**
-	 * Specify whether sub-transactions are allowed.
-	 */
-	private boolean allowSubTransactions = true;
-
-	/**
-	 * Whether a VM shutdown should trigger forced shutdown of the transaction core.
-	 */
-	private boolean forceShutdownOnVmExit;
-
-	/**
-	 * How long should normal shutdown (no-force) wait for transactions to complete.
-	 */
-	private long defaultMaxWaitTimeOnShutdown = Long.MAX_VALUE;
-
-	/**
-	 * Transactions log file base name.
-	 */
-	private String logBaseName = "tmlog";
-
-	/**
-	 * Directory in which the log files should be stored. Defaults to the current working
-	 * directory.
-	 */
-	private String logBaseDir;
-
-	/**
-	 * Interval between checkpoints, expressed as the number of log writes between two
-	 * checkpoints. A checkpoint reduces the log file size at the expense of adding some
-	 * overhead in the runtime.
-	 */
-	private long checkpointInterval = 500;
-
-	/**
-	 * Whether to use different (and concurrent) threads for two-phase commit on the
-	 * participating resources.
-	 */
-	private boolean threadedTwoPhaseCommit;
-
-	private final Recovery recovery = new Recovery();
-
-	/**
-	 * Specifies the transaction manager implementation that should be started. There is
-	 * no default value and this must be set. Generally,
-	 * {@literal com.atomikos.icatch.standalone.UserTransactionServiceFactory} is the
-	 * value you should set.
-	 * @param service the service
-	 */
-	public void setService(String service) {
-		this.service = service;
-	}
-
-	public String getService() {
-		return this.service;
-	}
-
-	/**
-	 * Specifies the maximum timeout that can be allowed for transactions. Defaults to
-	 * {@literal 300000}. This means that calls to UserTransaction.setTransactionTimeout()
-	 * with a value higher than configured here will be max'ed to this value.
-	 * @param maxTimeout the max timeout
-	 */
-	public void setMaxTimeout(Duration maxTimeout) {
-		this.maxTimeout = maxTimeout;
-	}
-
-	public Duration getMaxTimeout() {
-		return this.maxTimeout;
-	}
-
-	/**
-	 * The default timeout for JTA transactions (optional, defaults to {@literal 10000}
-	 * ms).
-	 * @param defaultJtaTimeout the default JTA timeout
-	 */
-	public void setDefaultJtaTimeout(Duration defaultJtaTimeout) {
-		this.defaultJtaTimeout = defaultJtaTimeout;
-	}
-
-	public Duration getDefaultJtaTimeout() {
-		return this.defaultJtaTimeout;
-	}
-
-	/**
-	 * Specifies the maximum number of active transactions. Defaults to {@literal 50}. A
-	 * negative value means infinite amount. You will get an {@code IllegalStateException}
-	 * with error message "Max number of active transactions reached" if you call
-	 * {@code UserTransaction.begin()} while there are already n concurrent transactions
-	 * running, n being this value.
-	 * @param maxActives the max activities
-	 */
-	public void setMaxActives(int maxActives) {
-		this.maxActives = maxActives;
-	}
-
-	public int getMaxActives() {
-		return this.maxActives;
-	}
-
-	/**
-	 * Specifies if disk logging should be enabled or not. Defaults to true. It is useful
-	 * for JUnit testing, or to profile code without seeing the transaction manager's
-	 * activity as a hot spot but this should never be disabled on production or data
-	 * integrity cannot be guaranteed.
-	 * @param enableLogging if logging is enabled
-	 */
-	public void setEnableLogging(boolean enableLogging) {
-		this.enableLogging = enableLogging;
-	}
-
-	public boolean isEnableLogging() {
-		return this.enableLogging;
-	}
-
-	/**
-	 * Specifies the transaction manager's unique name. Defaults to the machine's IP
-	 * address. If you plan to run more than one transaction manager against one database
-	 * you must set this property to a unique value or you might run into duplicate
-	 * transaction ID (XID) problems that can be quite subtle (example:
-	 * {@literal https://fogbugz.atomikos.com/default.asp?community.6.2225.7}). If
-	 * multiple instances need to use the same properties file then the easiest way to
-	 * ensure uniqueness for this property is by referencing a system property specified
-	 * at VM startup.
-	 * @param uniqueName the unique name
-	 */
-	public void setTransactionManagerUniqueName(String uniqueName) {
-		this.transactionManagerUniqueName = uniqueName;
-	}
-
-	public String getTransactionManagerUniqueName() {
-		return this.transactionManagerUniqueName;
-	}
-
-	/**
-	 * Specifies if subtransactions should be joined when possible. Defaults to true. When
-	 * false, no attempt to call {@code XAResource.start(TM_JOIN)} will be made for
-	 * different but related subtransactions. This setting has no effect on resource
-	 * access within one and the same transaction. If you don't use subtransactions then
-	 * this setting can be ignored.
-	 * @param serialJtaTransactions if serial JTA transactions are supported
-	 */
-	public void setSerialJtaTransactions(boolean serialJtaTransactions) {
-		this.serialJtaTransactions = serialJtaTransactions;
-	}
-
-	public boolean isSerialJtaTransactions() {
-		return this.serialJtaTransactions;
-	}
-
-	public void setAllowSubTransactions(boolean allowSubTransactions) {
-		this.allowSubTransactions = allowSubTransactions;
-	}
-
-	public boolean isAllowSubTransactions() {
-		return this.allowSubTransactions;
-	}
-
-	/**
-	 * Specifies whether VM shutdown should trigger forced shutdown of the transaction
-	 * core. Defaults to false.
-	 * @param forceShutdownOnVmExit if VM shutdown should be forced
-	 */
-	public void setForceShutdownOnVmExit(boolean forceShutdownOnVmExit) {
-		this.forceShutdownOnVmExit = forceShutdownOnVmExit;
-	}
-
-	public boolean isForceShutdownOnVmExit() {
-		return this.forceShutdownOnVmExit;
-	}
-
-	/**
-	 * Specifies how long should a normal shutdown (no-force) wait for transactions to
-	 * complete. Defaults to {@literal Long.MAX_VALUE}.
-	 * @param defaultMaxWaitTimeOnShutdown the default max wait time on shutdown
-	 */
-	public void setDefaultMaxWaitTimeOnShutdown(long defaultMaxWaitTimeOnShutdown) {
-		this.defaultMaxWaitTimeOnShutdown = defaultMaxWaitTimeOnShutdown;
-	}
-
-	public long getDefaultMaxWaitTimeOnShutdown() {
-		return this.defaultMaxWaitTimeOnShutdown;
-	}
-
-	/**
-	 * Specifies the transactions log file base name. Defaults to {@literal tmlog}. The
-	 * transactions logs are stored in files using this name appended with a number and
-	 * the extension {@literal .log}. At checkpoint, a new transactions log file is
-	 * created and the number is incremented.
-	 * @param logBaseName the log base name
-	 */
-	public void setLogBaseName(String logBaseName) {
-		this.logBaseName = logBaseName;
-	}
-
-	public String getLogBaseName() {
-		return this.logBaseName;
-	}
-
-	/**
-	 * Specifies the directory in which the log files should be stored. Defaults to the
-	 * current working directory. This directory should be a stable storage like a SAN,
-	 * RAID or at least backed up location. The transactions logs files are as important
-	 * as the data themselves to guarantee consistency in case of failures.
-	 * @param logBaseDir the log base dir
-	 */
-	public void setLogBaseDir(String logBaseDir) {
-		this.logBaseDir = logBaseDir;
-	}
-
-	public String getLogBaseDir() {
-		return this.logBaseDir;
-	}
-
-	/**
-	 * Specifies the interval between checkpoints. A checkpoint reduces the log file size
-	 * at the expense of adding some overhead in the runtime. Defaults to {@literal 500}.
-	 * @param checkpointInterval the checkpoint interval
-	 */
-	public void setCheckpointInterval(long checkpointInterval) {
-		this.checkpointInterval = checkpointInterval;
-	}
-
-	public long getCheckpointInterval() {
-		return this.checkpointInterval;
-	}
-
-	/**
-	 * Specifies whether or not to use different (and concurrent) threads for two-phase
-	 * commit on the participating resources. Setting this to {@literal true} implies that
-	 * the commit is more efficient since waiting for acknowledgements is done in
-	 * parallel. Defaults to {@literal true}. If you set this to {@literal false}, then
-	 * commits will happen in the order that resources are accessed within the
-	 * transaction.
-	 * @param threadedTwoPhaseCommit if threaded two phase commits should be used
-	 */
-	public void setThreadedTwoPhaseCommit(boolean threadedTwoPhaseCommit) {
-		this.threadedTwoPhaseCommit = threadedTwoPhaseCommit;
-	}
-
-	public boolean isThreadedTwoPhaseCommit() {
-		return this.threadedTwoPhaseCommit;
-	}
-
-	public Recovery getRecovery() {
-		return this.recovery;
-	}
-
-	/**
-	 * Returns the properties as a {@link Properties} object that can be used with
-	 * Atomikos.
-	 * @return the properties
-	 */
-	public Properties asProperties() {
-		Properties properties = new Properties();
-		set(properties, "service", getService());
-		set(properties, "max_timeout", getMaxTimeout());
-		set(properties, "default_jta_timeout", getDefaultJtaTimeout());
-		set(properties, "max_actives", getMaxActives());
-		set(properties, "enable_logging", isEnableLogging());
-		set(properties, "tm_unique_name", getTransactionManagerUniqueName());
-		set(properties, "serial_jta_transactions", isSerialJtaTransactions());
-		set(properties, "allow_subtransactions", isAllowSubTransactions());
-		set(properties, "force_shutdown_on_vm_exit", isForceShutdownOnVmExit());
-		set(properties, "default_max_wait_time_on_shutdown", getDefaultMaxWaitTimeOnShutdown());
-		set(properties, "log_base_name", getLogBaseName());
-		set(properties, "log_base_dir", getLogBaseDir());
-		set(properties, "checkpoint_interval", getCheckpointInterval());
-		set(properties, "threaded_2pc", isThreadedTwoPhaseCommit());
-		Recovery recovery = getRecovery();
-		set(properties, "forget_orphaned_log_entries_delay", recovery.getForgetOrphanedLogEntriesDelay());
-		set(properties, "recovery_delay", recovery.getDelay());
-		set(properties, "oltp_max_retries", recovery.getMaxRetries());
-		set(properties, "oltp_retry_interval", recovery.getRetryInterval());
-		return properties;
-	}
-
-	private void set(Properties properties, String key, Object value) {
-		String id = "com.atomikos.icatch." + key;
-		if (value != null && !properties.containsKey(id)) {
-			properties.setProperty(id, asString(value));
-		}
-	}
-
-	private String asString(Object value) {
-		if (value instanceof Duration) {
-			return String.valueOf(((Duration) value).toMillis());
-		}
-		return value.toString();
-	}
-
-	/**
-	 * Recovery specific settings.
-	 */
-	public static class Recovery {
-
-		/**
-		 * Delay after which recovery can cleanup pending ('orphaned') log entries.
-		 */
-		private Duration forgetOrphanedLogEntriesDelay = Duration.ofMillis(86400000);
-
-		/**
-		 * Delay between two recovery scans.
-		 */
-		private Duration delay = Duration.ofMillis(10000);
-
-		/**
-		 * Number of retry attempts to commit the transaction before throwing an
-		 * exception.
-		 */
-		private int maxRetries = 5;
-
-		/**
-		 * Delay between retry attempts.
-		 */
-		private Duration retryInterval = Duration.ofMillis(10000);
-
-		public Duration getForgetOrphanedLogEntriesDelay() {
-			return this.forgetOrphanedLogEntriesDelay;
-		}
-
-		public void setForgetOrphanedLogEntriesDelay(Duration forgetOrphanedLogEntriesDelay) {
-			this.forgetOrphanedLogEntriesDelay = forgetOrphanedLogEntriesDelay;
-		}
-
-		public Duration getDelay() {
-			return this.delay;
-		}
-
-		public void setDelay(Duration delay) {
-			this.delay = delay;
-		}
-
-		public int getMaxRetries() {
-			return this.maxRetries;
-		}
-
-		public void setMaxRetries(int maxRetries) {
-			this.maxRetries = maxRetries;
-		}
-
-		public Duration getRetryInterval() {
-			return this.retryInterval;
-		}
-
-		public void setRetryInterval(Duration retryInterval) {
-			this.retryInterval = retryInterval;
-		}
-
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapper.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapper.java
deleted file mode 100644
index d0307e675c4..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapper.java
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import javax.jms.ConnectionFactory;
-import javax.jms.XAConnectionFactory;
-
-import org.springframework.boot.jms.XAConnectionFactoryWrapper;
-
-/**
- * {@link XAConnectionFactoryWrapper} that uses an {@link AtomikosConnectionFactoryBean}
- * to wrap a {@link XAConnectionFactory}.
- *
- * @author Phillip Webb
- * @since 1.2.0
- */
-public class AtomikosXAConnectionFactoryWrapper implements XAConnectionFactoryWrapper {
-
-	@Override
-	public ConnectionFactory wrapConnectionFactory(XAConnectionFactory connectionFactory) {
-		AtomikosConnectionFactoryBean bean = new AtomikosConnectionFactoryBean();
-		bean.setXaConnectionFactory(connectionFactory);
-		return bean;
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapper.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapper.java
deleted file mode 100644
index 3c5c5e3b13b..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapper.java
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import javax.sql.XADataSource;
-
-import org.springframework.boot.jdbc.XADataSourceWrapper;
-
-/**
- * {@link XADataSourceWrapper} that uses an {@link AtomikosDataSourceBean} to wrap a
- * {@link XADataSource}.
- *
- * @author Phillip Webb
- * @since 1.2.0
- */
-public class AtomikosXADataSourceWrapper implements XADataSourceWrapper {
-
-	@Override
-	public AtomikosDataSourceBean wrapDataSource(XADataSource dataSource) throws Exception {
-		AtomikosDataSourceBean bean = new AtomikosDataSourceBean();
-		bean.setXaDataSource(dataSource);
-		return bean;
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/package-info.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/package-info.java
deleted file mode 100644
index 923e63b4a4e..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/atomikos/package-info.java
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Support classes for Atomikos JTA.
- */
-package org.springframework.boot.jta.atomikos;
diff --git a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/package-info.java b/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/package-info.java
deleted file mode 100644
index e574ee6000b..00000000000
--- a/spring-boot-project/spring-boot/src/main/java/org/springframework/boot/jta/package-info.java
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/**
- * Support for the Java Transaction API.
- */
-package org.springframework.boot.jta;
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBeanTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBeanTests.java
deleted file mode 100644
index 0f9d348416f..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosConnectionFactoryBeanTests.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2012-2021 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-
-/**
- * Tests for {@link AtomikosConnectionFactoryBean}.
- *
- * @author Phillip Webb
- */
-class AtomikosConnectionFactoryBeanTests {
-
-	@Test
-	void beanMethods() throws Exception {
-		MockAtomikosConnectionFactoryBean bean = spy(new MockAtomikosConnectionFactoryBean());
-		bean.setBeanName("bean");
-		bean.afterPropertiesSet();
-		assertThat(bean.getUniqueResourceName()).isEqualTo("bean");
-		verify(bean).init();
-		verify(bean, never()).close();
-		bean.destroy();
-		verify(bean).close();
-	}
-
-	static class MockAtomikosConnectionFactoryBean extends AtomikosConnectionFactoryBean {
-
-		@Override
-		public synchronized void init() {
-		}
-
-		@Override
-		public synchronized void close() {
-		}
-
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBeanTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBeanTests.java
deleted file mode 100644
index b078d0012e1..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDataSourceBeanTests.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2012-2021 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-
-/**
- * Tests for {@link AtomikosDataSourceBean}.
- *
- * @author Phillip Webb
- */
-class AtomikosDataSourceBeanTests {
-
-	@Test
-	void beanMethods() throws Exception {
-		MockAtomikosDataSourceBean bean = spy(new MockAtomikosDataSourceBean());
-		bean.setBeanName("bean");
-		bean.afterPropertiesSet();
-		assertThat(bean.getUniqueResourceName()).isEqualTo("bean");
-		verify(bean).init();
-		verify(bean, never()).close();
-		bean.destroy();
-		verify(bean).close();
-	}
-
-	static class MockAtomikosDataSourceBean extends AtomikosDataSourceBean {
-
-		@Override
-		public synchronized void init() {
-		}
-
-		@Override
-		public void close() {
-		}
-
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessorTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessorTests.java
deleted file mode 100644
index 80f3c22ab43..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosDependsOnBeanFactoryPostProcessorTests.java
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import java.util.Arrays;
-import java.util.HashSet;
-
-import javax.jms.ConnectionFactory;
-import javax.sql.DataSource;
-
-import com.atomikos.icatch.jta.UserTransactionManager;
-import com.atomikos.jms.extra.MessageDrivenContainer;
-import org.junit.jupiter.api.Test;
-
-import org.springframework.beans.factory.config.BeanDefinition;
-import org.springframework.context.annotation.AnnotationConfigApplicationContext;
-import org.springframework.context.annotation.Bean;
-import org.springframework.context.annotation.Configuration;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.mock;
-
-/**
- * Tests for {@link AtomikosDependsOnBeanFactoryPostProcessor}.
- *
- * @author Phillip Webb
- */
-class AtomikosDependsOnBeanFactoryPostProcessorTests {
-
-	private AnnotationConfigApplicationContext context;
-
-	@Test
-	void setsDependsOn() {
-		this.context = new AnnotationConfigApplicationContext(Config.class);
-		assertDependsOn("dataSource");
-		assertDependsOn("connectionFactory");
-		assertDependsOn("userTransactionManager", "dataSource", "connectionFactory");
-		assertDependsOn("messageDrivenContainer", "userTransactionManager");
-		this.context.close();
-	}
-
-	private void assertDependsOn(String bean, String... expected) {
-		BeanDefinition definition = this.context.getBeanDefinition(bean);
-		if (definition.getDependsOn() == null) {
-			assertThat(expected).as("No dependsOn expected for " + bean).isEmpty();
-			return;
-		}
-		HashSet<String> dependsOn = new HashSet<>(Arrays.asList(definition.getDependsOn()));
-		assertThat(dependsOn).isEqualTo(new HashSet<>(Arrays.asList(expected)));
-	}
-
-	@Configuration(proxyBeanMethods = false)
-	static class Config {
-
-		@Bean
-		DataSource dataSource() {
-			return mock(DataSource.class);
-		}
-
-		@Bean
-		ConnectionFactory connectionFactory() {
-			return mock(ConnectionFactory.class);
-		}
-
-		@Bean
-		UserTransactionManager userTransactionManager() {
-			return mock(UserTransactionManager.class);
-		}
-
-		@Bean
-		MessageDrivenContainer messageDrivenContainer() {
-			return mock(MessageDrivenContainer.class);
-		}
-
-		@Bean
-		static AtomikosDependsOnBeanFactoryPostProcessor atomikosPostProcessor() {
-			return new AtomikosDependsOnBeanFactoryPostProcessor();
-		}
-
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosPropertiesTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosPropertiesTests.java
deleted file mode 100644
index 830d25d5701..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosPropertiesTests.java
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright 2012-2020 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import java.time.Duration;
-import java.util.Properties;
-
-import org.assertj.core.data.MapEntry;
-import org.junit.jupiter.api.Test;
-
-import org.springframework.core.io.ClassPathResource;
-import org.springframework.core.io.support.PropertiesLoaderUtils;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.assertj.core.api.Assertions.entry;
-
-/**
- * Tests for {@link AtomikosProperties}.
- *
- * @author Phillip Webb
- * @author Stephane Nicoll
- */
-class AtomikosPropertiesTests {
-
-	private AtomikosProperties properties = new AtomikosProperties();
-
-	@Test
-	void testProperties() {
-		this.properties.setService("service");
-		this.properties.setMaxTimeout(Duration.ofMillis(1));
-		this.properties.setDefaultJtaTimeout(Duration.ofMillis(2));
-		this.properties.setMaxActives(3);
-		this.properties.setEnableLogging(true);
-		this.properties.setTransactionManagerUniqueName("uniqueName");
-		this.properties.setSerialJtaTransactions(true);
-		this.properties.setAllowSubTransactions(false);
-		this.properties.setForceShutdownOnVmExit(true);
-		this.properties.setDefaultMaxWaitTimeOnShutdown(20);
-		this.properties.setLogBaseName("logBaseName");
-		this.properties.setLogBaseDir("logBaseDir");
-		this.properties.setCheckpointInterval(4);
-		this.properties.setThreadedTwoPhaseCommit(true);
-		this.properties.getRecovery().setForgetOrphanedLogEntriesDelay(Duration.ofMillis(2000));
-		this.properties.getRecovery().setDelay(Duration.ofMillis(3000));
-		this.properties.getRecovery().setMaxRetries(10);
-		this.properties.getRecovery().setRetryInterval(Duration.ofMillis(4000));
-		assertThat(this.properties.asProperties().size()).isEqualTo(18);
-		assertProperty("com.atomikos.icatch.service", "service");
-		assertProperty("com.atomikos.icatch.max_timeout", "1");
-		assertProperty("com.atomikos.icatch.default_jta_timeout", "2");
-		assertProperty("com.atomikos.icatch.max_actives", "3");
-		assertProperty("com.atomikos.icatch.enable_logging", "true");
-		assertProperty("com.atomikos.icatch.tm_unique_name", "uniqueName");
-		assertProperty("com.atomikos.icatch.serial_jta_transactions", "true");
-		assertProperty("com.atomikos.icatch.allow_subtransactions", "false");
-		assertProperty("com.atomikos.icatch.force_shutdown_on_vm_exit", "true");
-		assertProperty("com.atomikos.icatch.default_max_wait_time_on_shutdown", "20");
-		assertProperty("com.atomikos.icatch.log_base_name", "logBaseName");
-		assertProperty("com.atomikos.icatch.log_base_dir", "logBaseDir");
-		assertProperty("com.atomikos.icatch.checkpoint_interval", "4");
-		assertProperty("com.atomikos.icatch.threaded_2pc", "true");
-		assertProperty("com.atomikos.icatch.forget_orphaned_log_entries_delay", "2000");
-		assertProperty("com.atomikos.icatch.recovery_delay", "3000");
-		assertProperty("com.atomikos.icatch.oltp_max_retries", "10");
-		assertProperty("com.atomikos.icatch.oltp_retry_interval", "4000");
-	}
-
-	@Test
-	void testDefaultProperties() {
-		Properties defaultSettings = loadDefaultSettings();
-		Properties properties = this.properties.asProperties();
-		assertThat(properties).contains(defaultOf(defaultSettings, "com.atomikos.icatch.max_timeout",
-				"com.atomikos.icatch.default_jta_timeout", "com.atomikos.icatch.max_actives",
-				"com.atomikos.icatch.enable_logging", "com.atomikos.icatch.serial_jta_transactions",
-				"com.atomikos.icatch.allow_subtransactions", "com.atomikos.icatch.force_shutdown_on_vm_exit",
-				"com.atomikos.icatch.default_max_wait_time_on_shutdown", "com.atomikos.icatch.log_base_name",
-				"com.atomikos.icatch.checkpoint_interval", "com.atomikos.icatch.threaded_2pc",
-				"com.atomikos.icatch.forget_orphaned_log_entries_delay", "com.atomikos.icatch.oltp_max_retries",
-				"com.atomikos.icatch.oltp_retry_interval"));
-		assertThat(properties).contains(entry("com.atomikos.icatch.recovery_delay",
-				defaultSettings.get("com.atomikos.icatch.default_jta_timeout")));
-		assertThat(properties).hasSize(15);
-	}
-
-	private MapEntry<?, ?>[] defaultOf(Properties defaultSettings, String... keys) {
-		MapEntry<?, ?>[] entries = new MapEntry<?, ?>[keys.length];
-		for (int i = 0; i < keys.length; i++) {
-			String key = keys[i];
-			entries[i] = entry(key, defaultSettings.get(key));
-		}
-		return entries;
-	}
-
-	private Properties loadDefaultSettings() {
-		try {
-
-			return PropertiesLoaderUtils.loadProperties(new ClassPathResource("transactions-defaults.properties"));
-		}
-		catch (Exception ex) {
-			throw new IllegalStateException("Failed to get default from Atomikos", ex);
-		}
-	}
-
-	private void assertProperty(String key, String value) {
-		assertThat(this.properties.asProperties().getProperty(key)).isEqualTo(value);
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapperTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapperTests.java
deleted file mode 100644
index 5cdd58b9cdb..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXAConnectionFactoryWrapperTests.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import javax.jms.ConnectionFactory;
-import javax.jms.XAConnectionFactory;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.mock;
-
-/**
- * Tests for {@link AtomikosXAConnectionFactoryWrapper}.
- *
- * @author Phillip Webb
- */
-class AtomikosXAConnectionFactoryWrapperTests {
-
-	@Test
-	void wrap() {
-		XAConnectionFactory connectionFactory = mock(XAConnectionFactory.class);
-		AtomikosXAConnectionFactoryWrapper wrapper = new AtomikosXAConnectionFactoryWrapper();
-		ConnectionFactory wrapped = wrapper.wrapConnectionFactory(connectionFactory);
-		assertThat(wrapped).isInstanceOf(AtomikosConnectionFactoryBean.class);
-		assertThat(((AtomikosConnectionFactoryBean) wrapped).getXaConnectionFactory()).isSameAs(connectionFactory);
-	}
-
-}
diff --git a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapperTests.java b/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapperTests.java
deleted file mode 100644
index 6355c73c00a..00000000000
--- a/spring-boot-project/spring-boot/src/test/java/org/springframework/boot/jta/atomikos/AtomikosXADataSourceWrapperTests.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.jta.atomikos;
-
-import javax.sql.DataSource;
-import javax.sql.XADataSource;
-
-import org.junit.jupiter.api.Test;
-
-import static org.assertj.core.api.Assertions.assertThat;
-import static org.mockito.Mockito.mock;
-
-/**
- * Tests for {@link AtomikosXADataSourceWrapper}.
- *
- * @author Phillip Webb
- */
-class AtomikosXADataSourceWrapperTests {
-
-	@Test
-	void wrap() throws Exception {
-		XADataSource dataSource = mock(XADataSource.class);
-		AtomikosXADataSourceWrapper wrapper = new AtomikosXADataSourceWrapper();
-		DataSource wrapped = wrapper.wrapDataSource(dataSource);
-		assertThat(wrapped).isInstanceOf(AtomikosDataSourceBean.class);
-		assertThat(((AtomikosDataSourceBean) wrapped).getXaDataSource()).isSameAs(dataSource);
-	}
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/build.gradle b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/build.gradle
deleted file mode 100644
index 5f8555d5826..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/build.gradle
+++ /dev/null
@@ -1,27 +0,0 @@
-plugins {
-	id "java"
-	id "org.springframework.boot.conventions"
-}
-
-description = "Spring Boot Atomikos JTA smoke test"
-
-dependencies {
-	implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-artemis"))
-	implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-data-jpa"))
-	implementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-jta-atomikos"))
-	implementation(project(":spring-boot-project:spring-boot-tools:spring-boot-test-support"))
-	if (JavaVersion.current().java9Compatible) {
-		implementation("jakarta.xml.bind:jakarta.xml.bind-api")
-	}
-	implementation("org.springframework:spring-jms")
-
-	runtimeOnly("com.h2database:h2")
-	runtimeOnly("org.apache.activemq:artemis-jms-server") {
-		exclude group: "commons-logging", module: "commons-logging"
-		exclude group: "org.apache.geronimo.specs", module: "geronimo-jms_2.0_spec"
-		exclude group: "org.apache.geronimo.specs", module: "geronimo-json_1.0_spec"
-		exclude group: "org.apache.geronimo.specs", module: "geronimo-jta_1.1_spec"
-	}
-
-	testImplementation(project(":spring-boot-project:spring-boot-starters:spring-boot-starter-test"))
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Account.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Account.java
deleted file mode 100644
index c73d1cfd1e2..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Account.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import javax.persistence.Entity;
-import javax.persistence.GeneratedValue;
-import javax.persistence.Id;
-
-@Entity
-public class Account {
-
-	@Id
-	@GeneratedValue
-	private Long id;
-
-	private String username;
-
-	Account() {
-	}
-
-	public Account(String username) {
-		this.username = username;
-	}
-
-	public String getUsername() {
-		return this.username;
-	}
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountRepository.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountRepository.java
deleted file mode 100644
index 99aed1784f0..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountRepository.java
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import org.springframework.data.jpa.repository.JpaRepository;
-
-public interface AccountRepository extends JpaRepository<Account, Long> {
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountService.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountService.java
deleted file mode 100644
index 7a0deade0f6..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/AccountService.java
+++ /dev/null
@@ -1,45 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import javax.transaction.Transactional;
-
-import org.springframework.jms.core.JmsTemplate;
-import org.springframework.stereotype.Service;
-
-@Service
-@Transactional
-public class AccountService {
-
-	private final JmsTemplate jmsTemplate;
-
-	private final AccountRepository accountRepository;
-
-	public AccountService(JmsTemplate jmsTemplate, AccountRepository accountRepository) {
-		this.jmsTemplate = jmsTemplate;
-		this.accountRepository = accountRepository;
-	}
-
-	public void createAccountAndNotify(String username) {
-		this.jmsTemplate.convertAndSend("accounts", username);
-		this.accountRepository.save(new Account(username));
-		if ("error".equals(username)) {
-			throw new RuntimeException("Simulated error");
-		}
-	}
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Messages.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Messages.java
deleted file mode 100644
index 1f0c90ad9c4..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/Messages.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * Copyright 2012-2019 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import org.springframework.jms.annotation.JmsListener;
-import org.springframework.stereotype.Component;
-
-@Component
-public class Messages {
-
-	@JmsListener(destination = "accounts")
-	public void onMessage(String content) {
-		System.out.println("----> " + content);
-	}
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/SampleAtomikosApplication.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/SampleAtomikosApplication.java
deleted file mode 100644
index eb028ae6ccd..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/java/smoketest/atomikos/SampleAtomikosApplication.java
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Copyright 2012-2021 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ConfigurableApplicationContext;
-
-@SpringBootApplication
-public class SampleAtomikosApplication {
-
-	public static void main(String[] args) throws Exception {
-		try (ConfigurableApplicationContext context = SpringApplication.run(SampleAtomikosApplication.class, args)) {
-			AccountService service = context.getBean(AccountService.class);
-			AccountRepository repository = context.getBean(AccountRepository.class);
-			service.createAccountAndNotify("josh");
-			System.out.println("Count is " + repository.count());
-			try {
-				service.createAccountAndNotify("error");
-			}
-			catch (Exception ex) {
-				System.out.println(ex.getMessage());
-			}
-			System.out.println("Count is " + repository.count());
-			Thread.sleep(100);
-		}
-	}
-
-}
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/resources/application.properties b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/resources/application.properties
deleted file mode 100644
index c2a36916165..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/main/resources/application.properties
+++ /dev/null
@@ -1,3 +0,0 @@
-logging.level.com.atomikos=WARN
-spring.artemis.embedded.queues=accounts
-spring.jpa.open-in-view=true
diff --git a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/test/java/smoketest/atomikos/SampleAtomikosApplicationTests.java b/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/test/java/smoketest/atomikos/SampleAtomikosApplicationTests.java
deleted file mode 100644
index c65ae06d244..00000000000
--- a/spring-boot-tests/spring-boot-smoke-tests/spring-boot-smoke-test-jta-atomikos/src/test/java/smoketest/atomikos/SampleAtomikosApplicationTests.java
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Copyright 2012-2021 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package smoketest.atomikos;
-
-import java.io.File;
-import java.util.function.Consumer;
-
-import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.ExtendWith;
-
-import org.springframework.boot.test.system.CapturedOutput;
-import org.springframework.boot.test.system.OutputCaptureExtension;
-import org.springframework.boot.testsupport.BuildOutput;
-import org.springframework.util.StringUtils;
-
-import static org.assertj.core.api.Assertions.assertThat;
-
-/**
- * Basic integration tests for demo application.
- *
- * @author Phillip Webb
- */
-@ExtendWith(OutputCaptureExtension.class)
-class SampleAtomikosApplicationTests {
-
-	@Test
-	void testTransactionRollback(CapturedOutput output) throws Exception {
-		File logDir = new File(new BuildOutput(getClass()).getRootLocation(), "atomikos-logs");
-		SampleAtomikosApplication.main(new String[] { "--spring.jta.log-dir=" + logDir });
-		assertThat(output).satisfies(numberOfOccurrences("---->", 1));
-		assertThat(output).satisfies(numberOfOccurrences("----> josh", 1));
-		assertThat(output).satisfies(numberOfOccurrences("Count is 1", 2));
-		assertThat(output).satisfies(numberOfOccurrences("Simulated error", 1));
-	}
-
-	private <T extends CharSequence> Consumer<T> numberOfOccurrences(String substring, int expectedCount) {
-		return (charSequence) -> {
-			int count = StringUtils.countOccurrencesOf(charSequence.toString(), substring);
-			assertThat(count).isEqualTo(expectedCount);
-		};
-	}
-
-}