相关疑难解决方法(0)

有人能说明一下JVM选项是什么ReservedCodeCacheSize和InitialCodeCacheSize是谁？特别是何时/为什么我要改变它？我如何确定合适的尺寸？

这就是文档所说的:

-XX:ReservedCodeCacheSize = 32m保留代码高速缓存大小(以字节为单位) - 最大代码高速缓存大小.[Solaris 64位,amd64和-server x86:2048m; 在1.5.0_06及更早版本中,Solaris 64位和64:1024m.

为什么MaxPermSize存在？

我在对项目进行声纳分析时遇到OutOfMemoryException.下面是堆栈跟踪:

14:55:55.433 DEBUG - Release semaphore on project : org.sonar.api.resources.Project@5a7b5cb8[id=1,key=myProj_web,qualifier=TRK], with key batch-myProj_web
14:55:55.711 DEBUG - To prevent a memory leak, the JDBC Driver [com.mysql.jdbc.Driver] has been forcibly deregistered

INFO: ------------------------------------------------------------------------
INFO: EXECUTION FAILURE
INFO: ------------------------------------------------------------------------
Total time: 12:48.979s
Final Memory: 33M/910M
INFO: ------------------------------------------------------------------------
ERROR: Error during Sonar runner execution
org.sonar.runner.impl.RunnerException: Unable to execute Sonar
        at org.sonar.runner.impl.BatchLauncher$1.delegateExecution(BatchLauncher.java:91)
        at org.sonar.runner.impl.BatchLauncher$1.run(BatchLauncher.java:75)
        at java.security.AccessController.doPrivileged(Native Method)
        at org.sonar.runner.impl.BatchLauncher.doExecute(BatchLauncher.java:69)
        at org.sonar.runner.impl.BatchLauncher.execute(BatchLauncher.java:50)
        at org.sonar.runner.api.EmbeddedRunner.doExecute(EmbeddedRunner.java:102)
        at org.sonar.runner.api.Runner.execute(Runner.java:100)
        at org.sonar.runner.Main.executeTask(Main.java:70)
        at org.sonar.runner.Main.execute(Main.java:59)
        at org.sonar.runner.Main.main(Main.java:53)
Caused by: org.sonar.api.utils.SonarException: Can …