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

Solutions on the web

via Jenkins JIRA by Albert Solberg, 1 year ago
java.lang.NullPointerException
via Jenkins JIRA by Albert Solberg, 1 year ago
java.lang.NullPointerException
java.lang.NullPointerException: 	at hudson.plugins.selenium.callables.hub.StopHubCallable.call(StopHubCallable.java:20)	at hudson.plugins.selenium.callables.hub.StopHubCallable.call(StopHubCallable.java:13)	at hudson.remoting.UserRequest.perform(UserRequest.java:121)	at hudson.remoting.UserRequest.perform(UserRequest.java:49)	at hudson.remoting.Request$2.run(Request.java:326)	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)	at java.util.concurrent.FutureTask.run(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)