java lang OutOfMemoryError PermGen space in Maven build

Question

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   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  lt init gt  Annotate java 52          at com sun tools javac comp Annotate instance Annotate java 36          at com sun tools javac jvm ClassReader  lt init gt  ClassReader java 215          at com sun tools javac jvm ClassReader instance ClassReader java 168          at com sun tools javac main JavaCompiler  lt init gt  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

User · Answer

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  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

User · Answer

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 setting and select Advanced and set Environment variable as below   Variable-name   MAVEN OPTS Variable-value   -XX MaxPermSize 128m

User · Answer

Increase the size of your perm space  of course   Use the -XX MaxPermSize 128m option   Set the value to something appropriate

User · Answer

This very annoying error so what I did  Under Windows   Edit system environment variables -  gt  Edit Variables - gt  New   then fill   MAVEN OPTS -Xms512m -Xmx2048m -XX MaxPermSize 512m     Then restart the console and run the maven build again  No more Maven space perm size problems

User · Answer

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 compile and surefire test     lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-compiler-plugin lt  artifactId gt       lt version gt 3 2 lt  version gt       lt configuration gt         lt fork gt true lt  fork gt         lt meminitial gt 128m lt  meminitial gt         lt maxmem gt 1024m lt  maxmem gt         lt compilerArgs gt           lt arg gt -XX MaxPermSize 256m lt  arg gt         lt  compilerArgs gt       lt  configuration gt     lt  plugin gt    lt plugin gt       lt groupId gt org apache maven plugins lt  groupId gt       lt artifactId gt maven-surefire-plugin lt  artifactId gt       lt version gt 2 18 lt  version gt       lt configuration gt           lt forkCount gt 1 lt  forkCount gt           lt argLine gt -Xmx1024m -XX MaxPermSize 256m lt  argLine gt       lt  configuration gt   lt  plugin gt

User · Answer

When you say you increased MAVEN OPTS  what values did you increase  Did you increase the MaxPermSize  as in example   export MAVEN OPTS  -Xmx512m -XX MaxPermSize 128m     or on Windows    set MAVEN OPTS -Xmx512m -XX MaxPermSize 128m   You can also specify these JVM options in each maven project separately

User · Answer

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

[java] "java.lang.OutOfMemoryError: PermGen space" in Maven build

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