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 Coderanch by Frances Hollis, 1 year ago
This exception has no message.
via Coderanch by Maureen Charlton, 1 year ago
This exception has no message.
via genesys.com by Unknown author, 2 years ago
This exception has no message.
via Oracle Community by 710292, 2 years ago
This exception has no message.
java.lang.NullPointerException at java.util.TreeMap.compare(TreeMap.java:1093) at java.util.TreeMap.getEntry(TreeMap.java:347) at java.util.TreeMap.containsKey(TreeMap.java:204) at java.util.TreeSet.contains(TreeSet.java:196) at Roster.find(Roster.java:31) at RosterTest.doFind(RosterTest.java:69) at RosterTest.main(RosterTest.java:24)