please help me my jboss developer studio5.0.0GA not starting

!ENTRY org.eclipse.jdt.debug 4 125 2014-02-12 16:15:35.180

!MESSAGE Internal error logged from JDI Debug:

!STACK 0

org.eclipse.jdi.TimeoutException: Timeout occurred while waiting for packet 48702.

  at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:171)

  at org.eclipse.jdi.internal.connect.PacketReceiveManager.getReply(PacketReceiveManager.java:180)

  at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:177)

  at org.eclipse.jdi.internal.MirrorImpl.requestVM(MirrorImpl.java:208)

  at org.eclipse.jdi.internal.VirtualMachineImpl.classesBySignature(VirtualMachineImpl.java:599)

  at org.eclipse.jdi.internal.VirtualMachineImpl.classesByName(VirtualMachineImpl.java:626)

  at org.eclipse.jdt.internal.debug.core.model.JDIDebugTarget.jdiClassesByName(JDIDebugTarget.java:1524)

  at org.eclipse.jdt.internal.debug.core.hcr.JavaHotCodeReplaceManager.getTypesToBytes(JavaHotCodeReplaceManager.java:635)

  at org.eclipse.jdt.internal.debug.core.hcr.JavaHotCodeReplaceManager.redefineTypesJDK(JavaHotCodeReplaceManager.java:569)

  at org.eclipse.jdt.internal.debug.core.hcr.JavaHotCodeReplaceManager.doHotCodeReplace(JavaHotCodeReplaceManager.java:461)

  at org.eclipse.jdt.internal.debug.core.hcr.JavaHotCodeReplaceManager.access$0(JavaHotCodeReplaceManager.java:421)

  at org.eclipse.jdt.internal.debug.core.hcr.JavaHotCodeReplaceManager$1.run(JavaHotCodeReplaceManager.java:310)

  at org.eclipse.debug.core.DebugPlugin$AsynchRunner.run(DebugPlugin.java:1078)

  at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42)

  at org.eclipse.debug.core.DebugPlugin$AsynchRunner.async(DebugPlugin.java:1061)

  at org.eclipse.debug.core.DebugPlugin$EventDispatchJob.run(DebugPlugin.java:413)

  at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)