com.sun.jdi.VMOutOfMemoryException at com.sun.tools.jdi.JDWPException.toJDIException(JDWPException.java:31) at com.sun.tools.jdi.ThreadReferenceImpl.threadGroup(ThreadReferenceImpl.java:239) at org.netbeans.modules.debugger.jpda.jdi.ThreadReferenceWrapper.threadGroup(ThreadReferenceWrapper.java:581) at org.netbeans.modules.debugger.jpda.models.ThreadsCache.exec(ThreadsCache.java:312) at org.netbeans.modules.debugger.jpda.util.Operator$1.run(Operator.java:352) at java.lang.Thread.run(Thread.java:619)