Unable to Exit Safe Mode due to Null Pointer Exception
Symptoms
User are unable to exit Plugin Safe mode due to Null pointer exception. They are getting a red error box on the UPM screen and prompting to check the logs. Nothing appears in the atlassian-confluence.log, but the following appears in the catalina.out:
com.sun.jersey.server.impl.application.WebApplicationImpl onException
SEVERE: Internal server error
java.lang.NullPointerException
at com.atlassian.upm.PluginAccessorAndControllerImpl.getModuleNameOrKey(PluginAccessorAndControllerImpl.java:487)
at com.atlassian.upm.PluginAccessorAndControllerImpl.access$500(PluginAccessorAndControllerImpl.java:56)
at com.atlassian.upm.PluginAccessorAndControllerImpl$6.doInTransaction(PluginAccessorAndControllerImpl.java:428)
at com.atlassian.upm.PluginAccessorAndControllerImpl$6.doInTransaction(PluginAccessorAndControllerImpl.java:425)
at com.atlassian.sal.core.transaction.HostContextTransactionTemplate$1.doInTransaction(HostContextTransactionTemplate.java:25)
at com.atlassian.sal.spring.component.SpringHostContextAccessor$1.doInTransaction(SpringHostContextAccessor.java:88)
at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:127)
at com.atlassian.sal.spring.component.SpringHostContextAccessor.doInTransaction(SpringHostContextAccessor.java:82)Cause
One of the plugin binaries is corrupt and there needs to be a systematic removal of plugins until the corrupt plugin is discovered.
Resolution 1
- One of the plugin binaries is corrupt
- Visit your UPM and make a list of all user installed plugins you have installed.
- Run the following SQL command to remove all user installed plugins
delete from plugindata;
- Restart Confluence
- Download and reinstall your plugins from your list
Resolution 2
You can also leave the safe mode by running the following cURL command:
curl -H "Content-Type:application/vnd.atl.plugins.safe.mode.flag+json" --user admin:admin -X PUT -d '{"enabled": false, "links": {}}' http://localhost:8090/rest/plugins/1.0/safe-mode
Last modified on Sep 4, 2017
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