Maven 构建中的“java.lang.OutOfMemoryError: PermGen space”
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"java.lang.OutOfMemoryError: PermGen space" in Maven build
提问by Gandalf StormCrow
I'm getting this error while building Maven project, I increased MAVEN_OPTS but all the same, I found some similar posts but they are refering to something else. How do I fix this?
我在构建 Maven 项目时遇到了这个错误，我增加了 MAVEN_OPTS 但还是一样，我发现了一些类似的帖子，但他们指的是别的东西。我该如何解决？
The system is out of resources.
Consult the following stack trace for details.
java.lang.OutOfMemoryError: PermGen space
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
at java.net.URLClassLoader.accessexport MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m"
0(URLClassLoader.java:58)
at java.net.URLClassLoader.run(URLClassLoader.java:197)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at org.codehaus.plexus.compiler.javac.IsolatedClassLoader.loadClass(IsolatedClassLoader.java:56)
at com.sun.tools.javac.comp.Annotate.<init>(Annotate.java:52)
at com.sun.tools.javac.comp.Annotate.instance(Annotate.java:36)
at com.sun.tools.javac.jvm.ClassReader.<init>(ClassReader.java:215)
at com.sun.tools.javac.jvm.ClassReader.instance(ClassReader.java:168)
at com.sun.tools.javac.main.JavaCompiler.<init>(JavaCompiler.java:293)
at com.sun.tools.javac.main.JavaCompiler.instance(JavaCompiler.java:72)
at com.sun.tools.javac.main.Main.compile(Main.java:340)
at com.sun.tools.javac.main.Main.compile(Main.java:279)
at com.sun.tools.javac.main.Main.compile(Main.java:270)
at com.sun.tools.javac.Main.compile(Main.java:87)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.codehaus.plexus.compiler.javac.JavacCompiler.compileInProcess(JavacCompiler.java:420)
at org.codehaus.plexus.compiler.javac.JavacCompiler.compile(JavacCompiler.java:141)
at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:493)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:114)
at org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:490)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:694)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:556)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:535)
I'm not as worried about how to fix as to how to fix it in the maven ecosystem
我不担心如何修复，而是如何在 maven 生态系统中修复它
采纳答案by Arun R
When you say you increased MAVEN_OPTS, what values did you increase? Did you increase the MaxPermSize, as in example:
当你说你增加了MAVEN_OPTS，你增加了什么值？您是否增加了MaxPermSize，例如：
set MAVEN_OPTS=-Xmx512m -XX:MaxPermSize=128m
(or on Windows:)
（或在 Windows 上：）
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.2</version>
<configuration>
<fork>true</fork>
<meminitial>128m</meminitial>
<maxmem>1024m</maxmem>
<compilerArgs>
<arg>-XX:MaxPermSize=256m</arg>
</compilerArgs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.18</version>
<configuration>
<forkCount>1</forkCount>
<argLine>-Xmx1024m -XX:MaxPermSize=256m</argLine>
</configuration>
</plugin>
You can also specify these JVM options in each maven project separately.
您还可以在每个 Maven 项目中分别指定这些 JVM 选项。
回答by duffymo
Increase the size of your perm space, of course. Use the -XX:MaxPermSize=128moption. Set the value to something appropriate.
当然，增加烫发空间的大小。使用该-XX:MaxPermSize=128m选项。将值设置为适当的值。
回答by eckes
If you want to make this part of your POM for a repeatable build, you can use the fork-variant of a few of the plugins (especially compiler:compileand surefire:test):
如果您想将 POM 的这一部分用于可重复构建，您可以使用一些插件的 fork 变体（尤其是compiler:compile和surefire:test）：
use below command first
$ export MAVEN_OPTS="-Xmx512m -Xss32m"
then use your mvn command to clean install /build war file
$ mvn clean install
NOTE: you don't need -XX:MaxPermSize argument in MAVEN_OPTS when your are using jdk1.8
Java HotSpot(TM) Client VM warning: ignoring option MaxPermSize=XXXm; support was removed in 8.0
回答by mkumar0304
I have found a solution of git bash command when you try to build war using git mvn clean install for “java.lang.OutOfMemoryError: PermGen space” in Maven build error come
当您尝试使用 git mvn clean install 为“java.lang.OutOfMemoryError: PermGen space”构建战争时，我找到了 git bash 命令的解决方案，在 Maven 构建错误来了
Edit system environment variables - > Edit Variables -> New
回答by ?MER TA?CI
When I encountered this exception, I solved this by using Run Configurations... panel as picture shows below.Especially, at JRE tab, the VM Arguments are the critical
( "-Xmx1024m -Xms512m -XX:MaxPermSize=1024m -XX:PermSize=512m").
当我遇到这个异常时，我通过使用 Run Configurations... 面板解决了这个问题，如下图所示。特别是，在 JRE 选项卡中，VM Arguments 是关键
（“-Xmx1024m -Xms512m -XX:MaxPermSize=1024m -XX:PermSize =512m”）。
回答by Ranjit
We face this error when permanent generation heap is full and some of us we use command prompt to build our maven project in windows. since we need to increase heap size, we could set our environment variable @ControlPanel/System and Security/System and there you click on Change settingand select Advanced and set Environment variable as below
当永久代堆已满时，我们会遇到此错误，并且我们中的一些人使用命令提示符在 Windows 中构建我们的 maven 项目。由于我们需要增加堆大小，我们可以设置我们的环境变量@ControlPanel/System 和 Security/System，然后单击 更改设置并选择高级并设置环境变量，如下所示
- Variable-name : MAVEN_OPTS
- Variable-value : -XX:MaxPermSize=128m
- 变量名：MAVEN_OPTS
- 变量值：-XX:MaxPermSize=128m
回答by Xelian
This very annoying error so what I did: Under Windows:
这个非常烦人的错误所以我做了什么：在 Windows 下：
MAVEN_OPTS
-Xms512m -Xmx2048m -XX:MaxPermSize=512m
then fill
然后填写
##代码##
Then restart the console and run the maven build again. No more Maven space/perm size problems.
然后重新启动控制台并再次运行 Maven 构建。不再有 Maven 空间/烫发大小问题。
