如何为AJC Ant任务设置垃圾收集器？

Question

我在进行编译时编织时出现内存不足的错误。如您所见，我已经将Xmx (通过maxmem)设置为1024m。这可能是因为我试图编织的jar大约为70MB。

如何设置垃圾收集器？我尝试使用X参数，但是当我使用JConsole连接到进程时，没有设置ConcMarkSweep。

    <echo message="Weaving..."/>
    <aspectj:iajc classpathref="compile.libs" aspectpath="${src.dir}" outJar="${output.jar}" fork="true" maxmem="1024m" X="+UseConcMarkSweepGC">
        <inpath>
            <pathelement path="${classes.dir}"/>
        </inpath>
    </aspectj:iajc>

错误是：

Bugs for exceptions thrown have titles File:line from the top stack, 
e.g., "SomeFile.java:243"

If you don't find the exception below in a bug, please add a new bug
at http://bugs.eclipse.org/bugs/enter_bug.cgi?product=AspectJ
To make the bug a priority, please include a test program
that can reproduce this exception.
GC overhead limit exceeded

when weaving classes 
when weaving 
when batch building BuildConfig[null] #Files=0 AopXmls=#0
GC overhead limit exceeded
java.lang.OutOfMemoryError: GC overhead limit exceeded
    at org.aspectj.apache.bcel.classfile.ConstantPool.copy(ConstantPool.java:69)
    at org.aspectj.apache.bcel.generic.ClassGen.<init>(ClassGen.java:161)
    at org.aspectj.weaver.bcel.LazyClassGen.<init>(LazyClassGen.java:255)
    at org.aspectj.weaver.bcel.BcelObjectType.getLazyClassGen(BcelObjectType.java:523)
    at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1742)
    at org.aspectj.weaver.bcel.BcelWeaver.weaveWithoutDump(BcelWeaver.java:1710)
    at org.aspectj.weaver.bcel.BcelWeaver.weaveAndNotify(BcelWeaver.java:1472)
    at org.aspectj.weaver.bcel.BcelWeaver.weave(BcelWeaver.java:1286)
    at org.aspectj.ajdt.internal.compiler.AjPipeliningCompilerAdapter.weaveQueuedEntries(AjPipeliningCompilerAdapter.java:435)
    at org.aspectj.ajdt.internal.compiler.AjPipeliningCompilerAdapter.afterCompiling(AjPipeliningCompilerAdapter.java:304)
    at org.aspectj.ajdt.internal.compiler.CompilerAdapter.ajc$afterReturning$org_aspectj_ajdt_internal_compiler_CompilerAdapter$2$f9cc9ca0(CompilerAdapter.aj:73)
    at org.aspectj.org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:430)
    at org.aspectj.ajdt.internal.core.builder.AjBuildManager.performCompilation(AjBuildManager.java:1003)
    at org.aspectj.ajdt.internal.core.builder.AjBuildManager.performBuild(AjBuildManager.java:267)
    at org.aspectj.ajdt.internal.core.builder.AjBuildManager.batchBuild(AjBuildManager.java:181)
    at org.aspectj.ajdt.ajc.AjdtCommand.doCommand(AjdtCommand.java:112)
    at org.aspectj.ajdt.ajc.AjdtCommand.runCommand(AjdtCommand.java:60)
    at org.aspectj.tools.ajc.Main.run(Main.java:355)
    at org.aspectj.tools.ajc.Main.runMain(Main.java:234)
    at org.aspectj.tools.ajc.Main.main(Main.java:84)

23-Sep-2013 23:58:12 org.aspectj.weaver.tools.Jdk14Trace info
INFO: Dumping to D:\Projects\Delete\AspectjTest\.\ajcore.20130923.234357.932.txt

1 fail|abort

Answer 1

一种解决方法是使用weaver ant命令，并将主要<java>类列为正在运行的对象。org.aspectj.tools.ajc.Main，您还必须手动设置此ant任务自动执行的所有参数。

Answer 2

我是通过ANTs exec任务调用带参数的aspectj1.7/bin/ajc.bat (1.7.3)得到的。用-Xmx3g替换ajc.bat和编辑-Xmx64g帮助我尝试在guava-18.0.jar上应用它。

类似地，这里也提到了：https://bugs.eclipse.org/bugs/show_bug.cgi?id=36234#c3

如果您不想使用aspectj:iajc任务，那么应该像上面那样使用适当的JVM 运行ant.bat (或sh)。

在ANT Eclipse JRE => Runtime JRE: [x] Separate JRE: ...中(在Eclipse中正常发生，以防它没有正确配置，并且您不希望在eclipse.ini文件中进行JVM更改)，您将需要为您的目标调整隐式创建的JRE => Runtime JRE: [x] Separate JRE: ...，并设置JRE => Runtime JRE: [x] Separate JRE: ...并调整其VM arguments: -Xmx3g。