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Bug
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Resolution: Fixed
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Minor
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None
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Jenkins 2.249.2, Ubuntu 20.04, openjdk version "11.0.8" 2020-07-14, Keycloak authentication plugin 2.3.0
When trying to manage Jenkins, I'm getting:
2020-10-19 17:29:04.547+0000 [id=12] WARNING h.i.i.InstallUncaughtExceptionHandler#handleException: Caught unhandled exception with ID 7207d0a9-1ced-4df9-87c3-282a6203bc6f java.lang.LinkageError: loader hudson.ClassicPluginStrategy$AntClassLoader2 @62809899 attempted duplicate class definition for com.cloudbees.plugins.credentials.CredentialsMatchers. (com.cloudbees.plugins.credentials.CredentialsMatchers is in unnamed module of loader hudson.ClassicPluginStrategy$AntClassLoader2 @62809899, parent loader hudson.ClassicPluginStrategy$DependencyClassLoader @5ed3b117) at jenkins.authentication.tokens.api.AuthenticationTokenSource.matcher(AuthenticationTokenSource.java:89) at jenkins.authentication.tokens.api.AuthenticationTokens.matcher(AuthenticationTokens.java:87) at jenkins.authentication.tokens.api.AuthenticationTokens.matcher(AuthenticationTokens.java:72) at org.jenkinsci.plugins.docker.commons.credentials.DockerRegistryEndpoint$DescriptorImpl.doFillCredentialsIdItems(DockerRegistryEndpoint.java:375) at java.base/java.lang.invoke.MethodHandle.invokeWithArguments(MethodHandle.java:710)
By the Docker section of Manage Jenkins -> Configure System I get the Jenkins devil
