即使在增加堆大小之后，我也会得到 Perm Gen 以及以下错误。
我首先得到以下内容，在反复尝试访问我的应用程序后，我得到了 Perm Gen
JDK：1.6
Grails：2.0.0
Tomcat 7
我不知道如何解决。
SEVERE: Exception sending context initialized event to listener instance of class org.codehaus.groovy.grails.web.context.GrailsContextLoaderListener
org.springframework.beans.factory.access.BootstrapException: Error executing bootstraps; nested exception is java.lang.VerifyError: (class: org/codehaus/groovy/runtime/InvokerInvocationException, method: getMessage signature: ()Ljava/lang/String;) Illegal constant pool index
at org.codehaus.groovy.grails.web.context.GrailsContextLoader.initWebApplicationContext(GrailsContextLoader.java:118)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4723)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5226)
at org.apache.catalina.core.StandardContext$1.call(StandardContext.java:5221)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.VerifyError: (class: org/codehaus/groovy/runtime/InvokerInvocationException, method: getMessage signature: ()Ljava/lang/String;) Illegal constant pool index
at org.codehaus.groovy.reflection.CachedMethod.invoke(CachedMethod.java:97)
at groovy.lang.MetaMethod.doMethodInvoke(MetaMethod.java:233)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:1054)
at groovy.lang.ExpandoMetaClass.invokeMethod(ExpandoMetaClass.java:1110)
at groovy.lang.MetaClassImpl.invokeMethod(MetaClassImpl.java:884)
at groovy.lang.Closure.call(Closure.java:410)
at org.codehaus.groovy.grails.plugins.DefaultGrailsPlugin.doWithApplicationContext(DefaultGrailsPlugin.java:489)
at org.codehaus.groovy.grails.plugins.AbstractGrailsPluginManager.doPostProcessing(AbstractGrailsPluginManager.java:169)
at org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator.performPostProcessing(GrailsRuntimeConfigurator.java:232)
at org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator.configure(GrailsRuntimeConfigurator.java:172)
at org.codehaus.groovy.grails.commons.spring.GrailsRuntimeConfigurator.configure(GrailsRuntimeConfigurator.java:124)
at org.codehaus.groovy.grails.web.context.GrailsConfigUtils.configureWebApplicationContext(GrailsConfigUtils.java:121)
at org.codehaus.groovy.grails.web.context.GrailsContextLoader.initWebApplicationContext(GrailsContextLoader.java:104)
... 9 more