How can i find Unresolved changes using plain java api?

Hello,

  I want to find Unresolved  changes Programmatically using java api.
  or  Just want to know whether current workspace connection having any Unresolved changes or not.

   For finding this use
   ILocalChange[] localChanges = lcm.getPendingChanges(new IShareable[]{shareable}, null);
  
   But it showing some error in debugging "org.eclipse.debug.core.DebugException: com.sun.jdi.ClassNotLoadedException: Type has not been loaded occurred while retrieving component type of array."
  
     

  I dont want to find the changes just want to know whether any Unresolved change is there or not .


Thanks in advance!!
Regards,
Vikas