无法 运行 在 Eclipse 中构建 Ant
Cannot Run Ant Build in Eclipse
我的 ant build 最近停止工作了。我不知道确切的时间，因为我只是偶尔在这个项目中进行 ant 构建。我收到以下弹出窗口：
错误仅针对此项目。我可以 运行 从另一个项目构建没问题。
build.xml文件可以非常简单，仍然会导致错误：
<project basedir=".">
<target name="init">
</target>
</project>
我检查了 Eclipse 的日志，我得到了这个错误：
!SESSION 2020-10-15 04:24:23.311 -----------------------------------------------
eclipse.buildId=4.17.0.I20200902-1800
java.version=13.0.1
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.java.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product
!ENTRY org.eclipse.jface 2 0 2020-10-15 04:24:25.323
!MESSAGE Keybinding conflicts occurred. They may interfere with normal accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2020-10-15 04:24:25.323
!MESSAGE A conflict occurred for CTRL+SHIFT+T:
Binding(CTRL+SHIFT+T,
ParameterizedCommand(Command(org.eclipse.jdt.ui.navigate.open.type,Open Type,
Open a type in a Java editor,
Category(org.eclipse.ui.category.navigate,Navigate,null,true),
org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@5f67181f,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
Binding(CTRL+SHIFT+T,
ParameterizedCommand(Command(org.eclipse.lsp4e.symbolinworkspace,Go to Symbol in Workspace,
,
Category(org.eclipse.lsp4e.category,Language Servers,null,true),
org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@1169fdfd,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
!ENTRY org.eclipse.e4.ui.workbench 4 0 2020-10-15 04:24:27.543
!MESSAGE Unable to retrieve the bundle from the URI: bundleclass://org.eclipse.recommenders.news.rcp/org.eclipse.recommenders.internal.news.rcp.toolbar.NewsToolControl
!ENTRY org.eclipse.egit.ui 2 0 2020-10-15 04:24:28.090
!MESSAGE Warning: The environment variable HOME is not set. The following directory will be used to store the Git
user global configuration and to define the default location to store repositories: 'C:\Users\Joshua'. If this is
not correct please set the HOME environment variable and restart Eclipse. Otherwise Git for Windows and
EGit might behave differently since they see different configuration options.
This warning can be switched off on the Team > Git > Confirmations and Warnings preference page.
!ENTRY org.eclipse.ant.launching 4 120 2020-10-15 04:24:37.887
!MESSAGE Error logged from Ant UI:
!STACK 0
java.net.SocketException: Socket closed
at java.base/sun.nio.ch.NioSocketImpl.endAccept(NioSocketImpl.java:689)
at java.base/sun.nio.ch.NioSocketImpl.accept(NioSocketImpl.java:762)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:662)
at java.base/java.net.ServerSocket.platformImplAccept(ServerSocket.java:628)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:604)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:561)
at java.base/java.net.ServerSocket.accept(ServerSocket.java:518)
at org.eclipse.ant.internal.launching.launchConfigurations.RemoteAntBuildListener$ServerConnection.run(RemoteAntBuildListener.java:91)
!ENTRY org.eclipse.core.jobs 4 2 2020-10-15 04:24:37.888
!MESSAGE An internal error occurred during: "Launching Hypnos build.xml".
!STACK 0
java.lang.NullPointerException
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getBootpathExt(AbstractJavaLaunchConfigurationDelegate.java:364)
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getVMSpecificAttributesMap(AbstractJavaLaunchConfigurationDelegate.java:679)
at org.eclipse.jdt.launching.JavaLaunchDelegate.getVMRunnerConfiguration(JavaLaunchDelegate.java:92)
at org.eclipse.jdt.launching.JavaLaunchDelegate.launch(JavaLaunchDelegate.java:160)
at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.runInSeparateVM(AntLaunchDelegate.java:580)
at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.launch(AntLaunchDelegate.java:251)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:807)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:718)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1021)
at org.eclipse.debug.internal.ui.DebugUIPlugin.run(DebugUIPlugin.java:1224)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
我使用的是 Eclipse 2020-06。我尝试升级到 Eclipse 2020-09 来解决问题，但没有成功。
根据 eclipse 的 JVM 是 eclipse.vm=C:\java\jdk-13.0.1\bin\server\jvm.dll
java 文件夹中的 release 文件说：
BUILD_TYPE="commercial"
IMPLEMENTOR="Oracle Corporation"
JAVA_VERSION="13.0.1"
JAVA_VERSION_DATE="2019-10-15"
MODULES="java.base java.compiler java.datatransfer java.xml java.prefs java.desktop java.instrument java.logging java.management java.security.sasl java.naming java.rmi java.management.rmi java.net.http java.scripting java.security.jgss java.transaction.xa java.sql java.sql.rowset java.xml.crypto java.se java.smartcardio jdk.accessibility jdk.internal.vm.ci jdk.management jdk.unsupported jdk.internal.vm.compiler jdk.aot jdk.internal.jvmstat jdk.attach jdk.charsets jdk.compiler jdk.crypto.ec jdk.crypto.cryptoki jdk.crypto.mscapi jdk.dynalink jdk.internal.ed jdk.editpad jdk.hotspot.agent jdk.httpserver jdk.internal.le jdk.internal.opt jdk.internal.vm.compiler.management jdk.jartool jdk.javadoc jdk.jcmd jdk.management.agent jdk.jconsole jdk.jdeps jdk.jdwp.agent jdk.jdi jdk.jfr jdk.jlink jdk.jshell jdk.jsobject jdk.jstatd jdk.localedata jdk.management.jfr jdk.naming.dns jdk.naming.rmi jdk.net jdk.pack jdk.rmic jdk.scripting.nashorn jdk.scripting.nashorn.shell jdk.sctp jdk.security.auth jdk.security.jgss jdk.unsupported.desktop jdk.xml.dom jdk.zipfs"
OS_ARCH="x86_64"
OS_NAME="Windows"
SOURCE=".:hg:b06ae01c3eea open:hg:8d03d066c4e8"
知道如何解决这个问题吗？
这似乎与用于 运行 Ant 脚本的 Java 有关。
在运行配置中，在JRE选项卡中，确保选择了 JRE/JDK（对于现有的 Ant 运行 配置，由于首选项的更改，先前选择的 JRE/JDK 可能会丢失Java > 安装的 JRE 或更新时 Java)。如果已选择 JRE/JDK，请在此处尝试另一个 JRE/JDK 设置（如果指定了 VM 参数，请在没有它们的情况下尝试，因为它们对于所选 VM 可能是非法的）。
将Eclipse升级到2022-03后出现类似错误。 Ant 不会 运行 但没有显示错误。然后我注意到工作区日志中的 java.net.SocketException: Socket closed 错误。
仅当我使用最近的 Java 版本但我需要使用 JDK 1.8 时，才按照其他答案的建议更改 JRE。由于无法解决问题，我只是将 Eclipse 降级到 2021-12。
显然在未来的版本中 运行 Ant 至少需要 Java 11：https://bugs.eclipse.org/bugs/show_bug.cgi?id=579317
我的 ant build 最近停止工作了。我不知道确切的时间，因为我只是偶尔在这个项目中进行 ant 构建。我收到以下弹出窗口：
错误仅针对此项目。我可以 运行 从另一个项目构建没问题。
build.xml文件可以非常简单，仍然会导致错误：
<project basedir=".">
<target name="init">
</target>
</project>
我检查了 Eclipse 的日志，我得到了这个错误：
!SESSION 2020-10-15 04:24:23.311 -----------------------------------------------
eclipse.buildId=4.17.0.I20200902-1800
java.version=13.0.1
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=en_US
Framework arguments: -product org.eclipse.epp.package.java.product
Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.java.product
!ENTRY org.eclipse.jface 2 0 2020-10-15 04:24:25.323
!MESSAGE Keybinding conflicts occurred. They may interfere with normal accelerator operation.
!SUBENTRY 1 org.eclipse.jface 2 0 2020-10-15 04:24:25.323
!MESSAGE A conflict occurred for CTRL+SHIFT+T:
Binding(CTRL+SHIFT+T,
ParameterizedCommand(Command(org.eclipse.jdt.ui.navigate.open.type,Open Type,
Open a type in a Java editor,
Category(org.eclipse.ui.category.navigate,Navigate,null,true),
org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@5f67181f,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
Binding(CTRL+SHIFT+T,
ParameterizedCommand(Command(org.eclipse.lsp4e.symbolinworkspace,Go to Symbol in Workspace,
,
Category(org.eclipse.lsp4e.category,Language Servers,null,true),
org.eclipse.ui.internal.WorkbenchHandlerServiceHandler@1169fdfd,
,,true),null),
org.eclipse.ui.defaultAcceleratorConfiguration,
org.eclipse.ui.contexts.window,,,system)
!ENTRY org.eclipse.e4.ui.workbench 4 0 2020-10-15 04:24:27.543
!MESSAGE Unable to retrieve the bundle from the URI: bundleclass://org.eclipse.recommenders.news.rcp/org.eclipse.recommenders.internal.news.rcp.toolbar.NewsToolControl
!ENTRY org.eclipse.egit.ui 2 0 2020-10-15 04:24:28.090
!MESSAGE Warning: The environment variable HOME is not set. The following directory will be used to store the Git
user global configuration and to define the default location to store repositories: 'C:\Users\Joshua'. If this is
not correct please set the HOME environment variable and restart Eclipse. Otherwise Git for Windows and
EGit might behave differently since they see different configuration options.
This warning can be switched off on the Team > Git > Confirmations and Warnings preference page.
!ENTRY org.eclipse.ant.launching 4 120 2020-10-15 04:24:37.887
!MESSAGE Error logged from Ant UI:
!STACK 0
java.net.SocketException: Socket closed
at java.base/sun.nio.ch.NioSocketImpl.endAccept(NioSocketImpl.java:689)
at java.base/sun.nio.ch.NioSocketImpl.accept(NioSocketImpl.java:762)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:662)
at java.base/java.net.ServerSocket.platformImplAccept(ServerSocket.java:628)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:604)
at java.base/java.net.ServerSocket.implAccept(ServerSocket.java:561)
at java.base/java.net.ServerSocket.accept(ServerSocket.java:518)
at org.eclipse.ant.internal.launching.launchConfigurations.RemoteAntBuildListener$ServerConnection.run(RemoteAntBuildListener.java:91)
!ENTRY org.eclipse.core.jobs 4 2 2020-10-15 04:24:37.888
!MESSAGE An internal error occurred during: "Launching Hypnos build.xml".
!STACK 0
java.lang.NullPointerException
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getBootpathExt(AbstractJavaLaunchConfigurationDelegate.java:364)
at org.eclipse.jdt.launching.AbstractJavaLaunchConfigurationDelegate.getVMSpecificAttributesMap(AbstractJavaLaunchConfigurationDelegate.java:679)
at org.eclipse.jdt.launching.JavaLaunchDelegate.getVMRunnerConfiguration(JavaLaunchDelegate.java:92)
at org.eclipse.jdt.launching.JavaLaunchDelegate.launch(JavaLaunchDelegate.java:160)
at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.runInSeparateVM(AntLaunchDelegate.java:580)
at org.eclipse.ant.internal.launching.launchConfigurations.AntLaunchDelegate.launch(AntLaunchDelegate.java:251)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:807)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:718)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1021)
at org.eclipse.debug.internal.ui.DebugUIPlugin.run(DebugUIPlugin.java:1224)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
我使用的是 Eclipse 2020-06。我尝试升级到 Eclipse 2020-09 来解决问题，但没有成功。
根据 eclipse 的 JVM 是 eclipse.vm=C:\java\jdk-13.0.1\bin\server\jvm.dll
java 文件夹中的 release 文件说：
BUILD_TYPE="commercial"
IMPLEMENTOR="Oracle Corporation"
JAVA_VERSION="13.0.1"
JAVA_VERSION_DATE="2019-10-15"
MODULES="java.base java.compiler java.datatransfer java.xml java.prefs java.desktop java.instrument java.logging java.management java.security.sasl java.naming java.rmi java.management.rmi java.net.http java.scripting java.security.jgss java.transaction.xa java.sql java.sql.rowset java.xml.crypto java.se java.smartcardio jdk.accessibility jdk.internal.vm.ci jdk.management jdk.unsupported jdk.internal.vm.compiler jdk.aot jdk.internal.jvmstat jdk.attach jdk.charsets jdk.compiler jdk.crypto.ec jdk.crypto.cryptoki jdk.crypto.mscapi jdk.dynalink jdk.internal.ed jdk.editpad jdk.hotspot.agent jdk.httpserver jdk.internal.le jdk.internal.opt jdk.internal.vm.compiler.management jdk.jartool jdk.javadoc jdk.jcmd jdk.management.agent jdk.jconsole jdk.jdeps jdk.jdwp.agent jdk.jdi jdk.jfr jdk.jlink jdk.jshell jdk.jsobject jdk.jstatd jdk.localedata jdk.management.jfr jdk.naming.dns jdk.naming.rmi jdk.net jdk.pack jdk.rmic jdk.scripting.nashorn jdk.scripting.nashorn.shell jdk.sctp jdk.security.auth jdk.security.jgss jdk.unsupported.desktop jdk.xml.dom jdk.zipfs"
OS_ARCH="x86_64"
OS_NAME="Windows"
SOURCE=".:hg:b06ae01c3eea open:hg:8d03d066c4e8"
知道如何解决这个问题吗？
这似乎与用于 运行 Ant 脚本的 Java 有关。
在运行配置中，在JRE选项卡中，确保选择了 JRE/JDK（对于现有的 Ant 运行 配置，由于首选项的更改，先前选择的 JRE/JDK 可能会丢失Java > 安装的 JRE 或更新时 Java)。如果已选择 JRE/JDK，请在此处尝试另一个 JRE/JDK 设置（如果指定了 VM 参数，请在没有它们的情况下尝试，因为它们对于所选 VM 可能是非法的）。
将Eclipse升级到2022-03后出现类似错误。 Ant 不会 运行 但没有显示错误。然后我注意到工作区日志中的 java.net.SocketException: Socket closed 错误。
仅当我使用最近的 Java 版本但我需要使用 JDK 1.8 时，才按照其他答案的建议更改 JRE。由于无法解决问题，我只是将 Eclipse 降级到 2021-12。
显然在未来的版本中 运行 Ant 至少需要 Java 11：https://bugs.eclipse.org/bugs/show_bug.cgi?id=579317