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 Apache's JIRA Issue Tracker by Gregory Chanan, 1 year ago
via Apache's JIRA Issue Tracker by Gregory Chanan, 1 year ago
via grokbase.com by Unknown author, 2 years ago
java.lang.NullPointerException: 	at org.apache.solr.cloud.ZkTestServer$ZKServerMain.shutdown(ZkTestServer.java:332)	at org.apache.solr.cloud.ZkTestServer.shutdown(ZkTestServer.java:492)	at org.apache.solr.cloud.SaslZkACLProviderTest$SaslZkTestServer.shutdown(SaslZkACLProviderTest.java:211)	at org.apache.solr.cloud.SaslZkACLProviderTest.tearDown(SaslZkACLProviderTest.java:109)	at java.lang.Thread.run(Thread.java:745)