Maven构建中的“ java.lang.OutOfMemoryError：PermGen空间”

Question

我在构建Maven项目时遇到此错误，我增加了MAVEN_OPTS，但同样，发现了一些类似的帖子，但它们引用的是其他内容。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.access$000(URLClassLoader.java:58)
        at java.net.URLClassLoader$1.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)

我不担心如何 在Maven生态系统中 进行修复 __

Answer 1

当您说增加时MAVEN_OPTS，您增加了什么价值？您是否增加了MaxPermSize，例如：

export MAVEN_OPTS="-Xmx512m -XX:MaxPermSize=128m"

（或在Windows上：）

set MAVEN_OPTS=-Xmx512m -XX:MaxPermSize=128m