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Fix potential resource leaks

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See gh-11624
This commit is contained in:
igor-suhorukov 2018-01-13 15:10:52 +03:00 committed by Stephane Nicoll
parent 0b22eb90b5
commit 5a4238acfc
4 changed files with 21 additions and 12 deletions
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8
spring-boot-project/spring-boot-devtools/src/main/java/org/springframework/boot/devtools/autoconfigure/DevToolsDataSourceAutoConfiguration.java
View File

@ -16,6 +16,8 @@
package org.springframework.boot.devtools.autoconfigure;
import java.sql.Connection;
import java.sql.Statement;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
@ -97,7 +99,11 @@ public class DevToolsDataSourceAutoConfiguration {
@Override
public void destroy() throws Exception {
if (dataSourceRequiresShutdown()) {
this.dataSource.getConnection().createStatement().execute("SHUTDOWN");
try (Connection connection = this.dataSource.getConnection()) {
try (Statement statement = connection.createStatement()) {
statement.execute("SHUTDOWN");
}
}
}
}

16
spring-boot-project/spring-boot-tools/spring-boot-loader-tools/src/main/java/org/springframework/boot/loader/tools/JarWriter.java
View File

@ -215,16 +215,16 @@ public class JarWriter implements LoaderClassesWriter, AutoCloseable {
@Override
public void writeLoaderClasses(String loaderJarResourceName) throws IOException {
URL loaderJar = getClass().getClassLoader().getResource(loaderJarResourceName);
JarInputStream inputStream = new JarInputStream(
new BufferedInputStream(loaderJar.openStream()));
JarEntry entry;
while ((entry = inputStream.getNextJarEntry()) != null) {
if (entry.getName().endsWith(".class")) {
writeEntry(new JarArchiveEntry(entry),
new InputStreamEntryWriter(inputStream, false));
try (JarInputStream inputStream = new JarInputStream(
new BufferedInputStream(loaderJar.openStream()))) {
JarEntry entry;
while ((entry = inputStream.getNextJarEntry()) != null) {
if (entry.getName().endsWith(".class")) {
writeEntry(new JarArchiveEntry(entry),
new InputStreamEntryWriter(inputStream, false));
}
}
}
inputStream.close();
}
/**

4
spring-boot-project/spring-boot-tools/spring-boot-loader/src/main/java/org/springframework/boot/loader/jar/JarFile.java
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@ -157,7 +157,9 @@ public class JarFile extends java.util.jar.JarFile {
Manifest manifest = (this.manifest == null ? null : this.manifest.get());
if (manifest == null) {
if (this.type == JarFileType.NESTED_DIRECTORY) {
manifest = new JarFile(this.getRootJarFile()).getManifest();
try (JarFile rootJarFile = new JarFile(this.getRootJarFile())) {
manifest = rootJarFile.getManifest();
}
}
else {
try (InputStream inputStream = getInputStream(MANIFEST_NAME,

5
spring-boot-project/spring-boot-tools/spring-boot-maven-plugin/src/main/java/org/springframework/boot/maven/RunMojo.java
View File

@ -127,8 +127,9 @@ public class RunMojo extends AbstractRunMojo {
private boolean checkForDevtools() {
try {
URL[] urls = getClassPathUrls();
URLClassLoader classLoader = new URLClassLoader(urls);
return (classLoader.findResource(RESTARTER_CLASS_LOCATION) != null);
try (URLClassLoader classLoader = new URLClassLoader(urls)) {
return (classLoader.findResource(RESTARTER_CLASS_LOCATION) != null);
}
}
catch (Exception ex) {
return false;