NoClassDefFoundError when Upgrading to JIRA 4 EAR or WAR Version
Symptoms
When upgrading the EAR/WAR version of JIRA to JIRA 4.0, you may receive this error on restart:
Cause:
javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/atlassian/jira/web/tags/UserTag
Stack Trace: [hide]
javax.servlet.ServletException: java.lang.NoClassDefFoundError: com/atlassian/jira/web/tags/UserTag
at org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862)
at org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:791)
at org.apache.jsp.decorators.main_jsp._jspService(main_jsp.java:372)
Cause
Your web application server's work directory (e.g. Tomcat's work directory) contains outdated files.
Resolution
Remove the contents of the work directory and restart.
Last modified on Mar 30, 2016
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