Angry Jenkins after logging in with SSO using the SAML plugin v2.0.9

1 minute readKnowledge base

Issue

SSO authentication is working, but I see an angry Jenkins Oops! A problem occurred while processing the request, as well as NullPointerException in the logs (below), after logging into my environment:

2024-10-16 15:24:43.675+0000 [id=3633663] WARNING h.i.i.InstallUncaughtExceptionHandler#handleException: Caught unhandled exception with ID ... java.lang.NullPointerException at org.jenkinsci.plugins.saml.SamlSecurityRealm.modifyUserSamlCustomAttributes(SamlSecurityRealm.java:405) at org.jenkinsci.plugins.saml.SamlSecurityRealm.doFinishLogin(SamlSecurityRealm.java:345

Resolution

This NullPointerException indicates that the modifyUserSamlCustomAttributes() method is returning a null or empty value. From the Operations Center SAML configuration, there will be empty values for SAML Attributes under the Custom Attributes section in your Manage Jenkins > Configure Global Security.

Delete this empty field box, if not being used, by clicking the red Delete button, or the red X on the right side of this box, then clicking Save at the bottom of the page.

custom attributes

Tested product/plugin versions

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