java.lang.OutOfMemoryError：Maven中的Java堆空间 [英] java.lang.OutOfMemoryError: Java heap space in Maven

问题描述

当我运行maven test时，会发生java.lang.OutOfMemoryError。我谷歌搜索解决方案，并尝试导出MAVEN_OPTS = -Xmx1024m ，但它不起作用。
任何人都知道这个问题的其他解决方案，BTW我正在使用maven 3.0

When I run maven test, java.lang.OutOfMemoryError happens. I google it for solutions and have tried to export MAVEN_OPTS=-Xmx1024m, but it did not work. Anyone know other solutions for this problem ,BTW I am using maven 3.0

提前致谢

运行mvn test -e时粘贴错误信息

Paste the error message here when run "mvn test -e"

Failed tests:
  warning(junit.framework.TestSuite$1)
  testDefaultPigJob_1(com.snda.dw.pig.impl.DefaultPigJobLocalTest)
  testDefaultPigJob_2(com.snda.dw.pig.impl.DefaultPigJobLocalTest)

Tests run: 11, Failures: 3, Errors: 0, Skipped: 0

10/11/01 13:37:18 INFO executionengine.HExecutionEngine: Connecting to hadoop fi
le system at: file:///
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 30.063s
[INFO] Finished at: Mon Nov 01 13:37:18 PDT 2010
[INFO] Final Memory: 3M/6M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.
5:test (default-test) on project dw.pig: There are test failures.
[ERROR]
[ERROR] Please refer to E:\Code\Java\workspace\dw.pig\target\surefire-reports fo
r the individual test results.
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal o
rg.apache.maven.plugins:maven-surefire-plugin:2.5:test (default-test) on project
 dw.pig: There are test failures.

Please refer to E:\Code\Java\workspace\dw.pig\target\surefire-reports for the in
dividual test results.
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:199)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:148)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:140)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProje
ct(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBu
ild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(Lifecycl
eStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:132)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Laun
cher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.jav
a:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(La
uncher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:
352)
Caused by: org.apache.maven.plugin.MojoFailureException: There are test failures
.

Please refer to E:\Code\Java\workspace\dw.pig\target\surefire-reports for the in
dividual test results.
        at org.apache.maven.plugin.surefire.SurefirePlugin.execute(SurefirePlugi
n.java:629)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(Default
BuildPluginManager.java:107)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor
.java:195)
        ... 19 more
[ERROR]
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureExc

推荐答案

当我运行maven测试时，会发生java.lang.OutOfMemoryError。我谷歌它的解决方案，并试图导出MAVEN_OPTS = -Xmx1024m，但它没有用。

When I run maven test, java.lang.OutOfMemoryError happens. I google it for solutions and have tried to export MAVEN_OPTS=-Xmx1024m, but it did not work.

使用 MAVEN_OPTS设置 Xmx 选项确实有效，它确实配置了用于启动Maven的JVM。话虽这么说，maven-surefire-plugin forks 默认情况下新的JVM，因此不会传递 MAVEN_OPTS 。

Setting the Xmx options using MAVEN_OPTS does work, it does configure the JVM used to start Maven. That being said, the maven-surefire-plugin forks a new JVM by default, and your MAVEN_OPTS are thus not passed.

配置大小调整maven-surefire-plugin使用的JVM，您可能需要：

To configure the sizing of the JVM used by the maven-surefire-plugin, you would either have to:

• 更改 forkMode 到从不（这是一个不太好的主意，因为Maven不会与测试隔离）〜或〜


• 使用 argLine 参数（正确的方法）：

• change the forkMode to never (which is be a not so good idea because Maven won't be isolated from the test) ~or~
• use the argLine parameter (the right way):

在后一种情况下，类似这样的事情：

In the later case, something like this:

<configuration>
  <argLine>-Xmx1024m</argLine>
</configuration>

但是我不得不说我倾向于同意斯蒂芬在这里，你的一个测试很可能出现问题，而且我不确定提供更多内存是解决问题的正确方法（隐藏？）你的问题。

But I have to say that I tend to agree with Stephen here, there is very likely something wrong with one of your test and I'm not sure that giving more memory is the right solution to "solve" (hide?) your problem.

• Maven 2 Surefire插件


• Maven Surefire中的类加载和分叉

• Maven 2 Surefire Plugin
• Classloading and Forking in Maven Surefire

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