Searched on Google with the first line of a JAVA stack trace?

We can recommend more relevant solutions and speed up debugging when you paste your entire stack trace with the exception message. Try a sample exception.

Recommended solutions based on your search

Samebug tips

  1. ,

    Thrown when an application is trying to use or access an object whose reference equals to null. You are probably trying to use a reference that points to no location in memory as though it were referencing an object.

Solutions on the web

via jsystemtest by ihovav
, 1 year ago
via Oracle Community by 3004, 1 year ago
via GitHub by miracle2k
, 1 year ago
This exception has no message.
java.lang.NullPointerException at java.util.Hashtable.put( at java.util.Properties.setProperty( at at com.eci.hifocus.hw.HiFocus.init( at jsystem.framework.system.SystemManagerImpl.getSystemObject( at jsystem.framework.system.SystemManagerImpl.getSystemObject( at com.eci.hf5.basicTestCases.VnvSystemTestCase.loadBasicSystemObjects( at com.eci.hf5.basicTestCases.VnvSystemTestCase.setUp( at com.eci.hf5.basicTestCases.VoiceSystemTestCase.setUp( at com.eci.hf5.basicTestCases.H248SystemTestCase.setUp( at com.eci.hf5.basicTestCases.VnvTrafficSystemTestCase.setUp( at at at junit.framework.SystemTestCase.runBare( at junit.framework.TestResult$1.protect( at junit.framework.TestResult.runProtected( at at at at com.aqua.anttask.jsystem.JSystemTask.executeInVM( at com.aqua.anttask.jsystem.JSystemTask.execute( at com.aqua.anttask.jsystem.JSystemTask.executeOrQueue( at com.aqua.anttask.jsystem.JSystemTask.execute( at at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke( at sun.reflect.DelegatingMethodAccessorImpl.invoke( at java.lang.reflect.Method.invoke( at at at at at at at at at at at at