'Gadgets not Rendering due to java.lang.NoClassDefFoundError com.atlassian.jira.portal.PortalPageImpl' Due to Incompatible Plugin
Platform Notice: Data Center Only - This article only applies to Atlassian apps on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Symptoms
JIRA is unable to display a gadget and the following errors are thrown the logs:
2010-07-29 15:07:44,339 http-8082-11 ERROR hevans 907x327x2 12fy3le 94.193.81.193,127.0.0.1 /rest/gadget/1.0/issueTable/filter [atlassian.plugin.servlet.DefaultServletModuleManager] Unable to create filter
com.atlassian.plugin.servlet.util.LazyLoadedReference$InitializationException: java.lang.NoClassDefFoundError: com/atlassian/jira/portal/PortalPageImpl
at com.atlassian.plugin.servlet.util.LazyLoadedReference.get(LazyLoadedReference.java:94)
at com.atlassian.plugin.servlet.DefaultServletModuleManager.getFilter(DefaultServletModuleManager.java:321)
...
Cause
The gadget is referencing a third-party plugin, which is using the old com.atlassian.jira.portal.PortalPageImpl class. This class has deprecated since JIRA 4.1.x.
For similar cases, check if the class exists in the current JIRA version's directory e.g. <jira-installation>/atlassian-jira/WEB-INF/classes/com/atlassian/jira/portal.
Resolution
Remove the third party plugin that's using this deprecated class. Unfortunately, there's no good way to determine the root of the issue, so to find out which one, try removing installed plugins one at a time until the error stops.
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