如何在maven-compiler-plugin中设置-XX：PermSize = 64m？ [英] How to set -XX:PermSize=64m in maven-compiler-plugin?

问题描述

我假装使用maven-compiler-plugin（v3.2）设置permsize或maxpermsize。

I faild in setting the permsize or maxpermsize with the maven-compiler-plugin (v3.2).

我试过这样：

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>      
<configuration>
    <meminitial>1024m</meminitial>
    <maxmem>2024m</maxmem>  
    <compilerArgument>-XX:PermSize=128m</compilerArgument>  
</configuration>
</plugin>

导致错误

Caused by: org.codehaus.plexus.compiler.CompilerException: invalid flag: -XX:MaxPermSize=256m -XX:PermSize=128m
    at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:191)
    at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:169)
    at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:785)
    ... 22 more
Caused by: java.lang.IllegalArgumentException: invalid flag: -XX:MaxPermSize=256m -XX:PermSize=128m
    at com.sun.tools.javac.api.JavacTool.processOptions(JavacTool.java:231)
    at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:199)
    at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:68)
    at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:115)
    ... 24 more

我的另一个尝试是添加它，如示例
http://maven.apache.org/plugins/maven-compiler-plugin /examples/pass-compiler-arguments.html

My other attempt was adding it like in the example http://maven.apache.org/plugins/maven-compiler-plugin/examples/pass-compiler-arguments.html

<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>      
<configuration>
    <meminitial>1024m</meminitial>
    <maxmem>2024m</maxmem>  
    <compilerArguments>
        <Xms>128m</Xms>
        <Xmx>1024m</Xmx>                        
        <XX:MaxPermSize>256m</XX:MaxPermSize>
        <XX:PermSize>128m</XX:PermSize>                                              
    </compilerArguments>
</configuration>
</plugin>

导致同样的错误：

Caused by: org.codehaus.plexus.compiler.CompilerException: invalid flag: -XX:MaxPermSize
    at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:191)
    at org.codehaus.plexus.compiler.javac.JavacCompiler.performCompile(JavacCompiler.java:169)
    at org.apache.maven.plugin.compiler.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:785)
    ... 22 more
Caused by: java.lang.IllegalArgumentException: invalid flag: -XX:MaxPermSize
    at com.sun.tools.javac.api.JavacTool.processOptions(JavacTool.java:231)
    at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:199)
    at com.sun.tools.javac.api.JavacTool.getTask(JavacTool.java:68)
    at org.codehaus.plexus.compiler.javac.JavaxToolsCompiler.compileInProcess(JavaxToolsCompiler.java:115)
    ... 24 more

s o，为什么这个标志无效？如果在将其添加到MVN_OPTS变量时优雅地考虑它？

so, why is this flag invalid? If it is gracefully taken into account when I add it to the MVN_OPTS variable?

推荐答案

从 javac 文档：

-Joption
传递给javac调用的java启动程序的选项。例如，-J-Xms48m将启动内存设置为48兆字节。

-Joption Pass option to the java launcher called by javac. For example, -J-Xms48m sets the startup memory to 48 megabytes.

基于以上内容：

<compilerArgs>
  <arg>-J-XX:PermSize=128m</arg>
  <arg>-J-XX:MaxPermSize=256m</arg>
</compilerArgs>

这篇关于如何在maven-compiler-plugin中设置-XX：PermSize = 64m？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！