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 Greg Perrott, 1 year ago
This exception has no message.
via Atlassian JIRA by Greg Perrott, 2 years ago
This exception has no message.
java.lang.NullPointerException: 	at com.atlassian.core.user.GroupUtils.existsGroup(GroupUtils.java:91)	at com.atlassian.jira.upgrade.tasks.UpgradeTask_Build60.doUpgrade(UpgradeTask_Build60.java:41)	at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeTaskSucess(UpgradeManagerImpl.java:584)	at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgrade(UpgradeManagerImpl.java:335)	at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeIfNeeded(UpgradeManagerImpl.java:281)	at com.atlassian.jira.upgrade.UpgradeManagerImpl.doUpgradeIfNeededAndAllowed(UpgradeManagerImpl.java:241)	at com.atlassian.jira.upgrade.UpgradeLauncher.contextInitialized(UpgradeLauncher.java:83)	at com.caucho.server.http.Application.init(Application.java:1832)	at com.caucho.server.http.VirtualHost.initWars(VirtualHost.java:824)	at com.caucho.server.http.VirtualHost.init(VirtualHost.java:687)	at com.caucho.server.http.ServletServer.initHosts(ServletServer.java:853)	at com.caucho.server.http.ServletServer.initInternal(ServletServer.java:698)	at com.caucho.server.http.ServletServer.init(ServletServer.java:509)	at com.caucho.server.http.ResinServer.init(ResinServer.java:382)	at com.caucho.server.http.ResinServer.main(ResinServer.java:1142)	at com.caucho.server.http.HttpServer.main(HttpServer.java:103)