diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTest.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTests.java
similarity index 98%
rename from spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTest.java
rename to spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTests.java
index 64c7a4941f8..a759a55641e 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTest.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/cassandra/CassandraPropertiesTests.java
@@ -27,7 +27,7 @@ import static org.assertj.core.api.Assertions.assertThat;
  *
  * @author Chris Bono
  */
-class CassandraPropertiesTest {
+class CassandraPropertiesTests {
 
 	@Test
 	void defaultValuesAreConsistent() {
diff --git a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/context/LifecycleAutoConfigurationTests.java b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/context/LifecycleAutoConfigurationTests.java
index f34f7c39990..818b7b02244 100644
--- a/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/context/LifecycleAutoConfigurationTests.java
+++ b/spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/context/LifecycleAutoConfigurationTests.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2020 the original author or authors.
+ * 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.
@@ -47,7 +47,7 @@ public class LifecycleAutoConfigurationTests {
 	}
 
 	@Test
-	void lifecycleProcessorIsConfiguredWithCustomDefaultTimeout() {
+	void lifecycleProcessorIsConfiguredWithCustomTimeout() {
 		this.contextRunner.withPropertyValues("spring.lifecycle.timeout-per-shutdown-phase=15s").run((context) -> {
 			assertThat(context).hasBean(AbstractApplicationContext.LIFECYCLE_PROCESSOR_BEAN_NAME);
 			Object processor = context.getBean(AbstractApplicationContext.LIFECYCLE_PROCESSOR_BEAN_NAME);
@@ -56,7 +56,7 @@ public class LifecycleAutoConfigurationTests {
 	}
 
 	@Test
-	void lifecycleProcessorIsConfiguredWithCustomDefaultTimeoutInAChildContext() {
+	void lifecycleProcessorIsConfiguredWithCustomTimeoutInAChildContext() {
 		new ApplicationContextRunner().run((parent) -> {
 			this.contextRunner.withParent(parent).withPropertyValues("spring.lifecycle.timeout-per-shutdown-phase=15s")
 					.run((child) -> {
diff --git a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathRestartStrategy.java b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathRestartStrategy.java
index 83b43f8b872..5faccbabc38 100644
--- a/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathRestartStrategy.java
+++ b/spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/classpath/ClassPathRestartStrategy.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2012-2019 the original author or authors.
+ * 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.
@@ -21,7 +21,7 @@ import org.springframework.boot.devtools.filewatch.ChangedFile;
 /**
  * Strategy interface used to determine when a changed classpath file should trigger a
  * full application restart. For example, static web resources might not require a full
- * restart where as class files would.
+ * restart whereas class files would.
  *
  * @author Phillip Webb
  * @since 1.3.0
diff --git a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/spring-boot-features.adoc b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/spring-boot-features.adoc
index 7398be08b78..4c3a1f73bbf 100644
--- a/spring-boot-project/spring-boot-docs/src/docs/asciidoc/spring-boot-features.adoc
+++ b/spring-boot-project/spring-boot-docs/src/docs/asciidoc/spring-boot-features.adoc
@@ -621,7 +621,7 @@ This might result in two separate `application.properties` files mounted at diff
 In such a case, having a wildcard location of `config/*/`, will result in both files being processed.
 
 By default, Spring Boot includes `config/*/` in the default search locations.
-The means that all subdirectories of the `/config` directory outside of your jar will be searched.
+It means that all subdirectories of the `/config` directory outside of your jar will be searched.
 
 You can use wildcard locations yourself with the `spring.config.location` and `spring.config.additional-location` properties.
 
@@ -1282,7 +1282,7 @@ The properties above will bind to a `Map` with `/key1`, `/key2` and `key3` as th
 The slash has been removed from `key3` because it wasn't surrounded by square brackets.
 
 You may also occasionally need to use the bracket notation if your `key` contains a `.` and you are binding to non-scalar value.
-For example, binding `a.b=c` to `Map<String, Object>` will return a Map with the entry `{"a"={"b"="c"}}` where as `[a.b]=c` will return a Map with the entry `{"a.b"="c"}`.
+For example, binding `a.b=c` to `Map<String, Object>` will return a Map with the entry `{"a"={"b"="c"}}` whereas `[a.b]=c` will return a Map with the entry `{"a.b"="c"}`.
 
 
 
@@ -2264,7 +2264,7 @@ If you want to take complete control of Spring MVC, you can add your own `@Confi
 [NOTE]
 ====
 Spring MVC uses a different `ConversionService` to the one used to convert values from your `application.properties` or `application.yaml` file.
-The means that `Period`, `Duration` and `DataSize` converters are not available and that `@DurationUnit` and `@DataSizeUnit` annotations will be ignored.
+It means that `Period`, `Duration` and `DataSize` converters are not available and that `@DurationUnit` and `@DataSizeUnit` annotations will be ignored.
 
 If you want to customize the `ConversionService` used by Spring MVC, you can provide a `WebMvcConfigurer` bean with an `addFormatters` method.
 From this method you can register any converter that you like, or you can delegate to the static methods available on `ApplicationConversionService`.