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 Atlassian JIRA by Aleksandre Kheteshvili, 1 year ago
This exception has no message.
via Stack Overflow by Kislay Verma
, 3 months ago
This exception has no message.
via Stack Overflow by Koekiebox
, 6 months ago
via GitHub by mibby
, 2 years ago
This exception has no message.
via GitHub by mibby
, 2 years ago
via GitHub by mbernier85
, 2 years ago
This exception has no message.
java.lang.NullPointerException: 	at java.util.concurrent.ConcurrentHashMap.putVal(Unknown Source)	at java.util.concurrent.ConcurrentHashMap.putIfAbsent(Unknown Source)	at com.atlassian.cache.memory.DelegatingCache.acquireLockFor(DelegatingCache.java:444)	at com.atlassian.cache.memory.DelegatingCache.remove(DelegatingCache.java:234)	at com.atlassian.jira.bc.project.component.CachingProjectComponentStore.insert(CachingProjectComponentStore.java:309)	at com.atlassian.jira.bc.project.component.CachingProjectComponentStore.store(CachingProjectComponentStore.java:215)	at com.atlassian.jira.bc.project.component.DefaultProjectComponentManager.create(DefaultProjectComponentManager.java:111)	at com.atlassian.jira.bc.project.component.DefaultProjectComponentService$2.executeOnSuccess(DefaultProjectComponentService.java:156)	at com.atlassian.jira.bc.project.component.DefaultProjectComponentService$Handler.run(DefaultProjectComponentService.java:648)	at com.atlassian.jira.bc.project.component.DefaultProjectComponentService.create(DefaultProjectComponentService.java:162)