[JIRA] [ssh-agent-plugin] (JENKINS-34930) ClassCastException when trying to start ssh-agent

[bartvanwissen@gmail.com (JIRA)]

bart van Wissen created an issue

Jenkins / JENKINS-34930 ClassCastException when trying to start ssh-agent Issue Type: Bug Assignee: Unassigned Components: ssh-agent-plugin Created: 2016/May/18 7:34 PM Priority: Major Reporter: bart van Wissen I'm getting the following Exception stack trace when in my build log: FATAL: [ssh-agent] Unable to start agent hudson.util.IOException2: [ssh-agent] Unable to start agent at com.cloudbees.jenkins.plugins.sshagent.SSHAgentBuildWrapper.createSSHAgentEnvironment(SSHAgentBuildWrapper.java:231) at com.cloudbees.jenkins.plugins.sshagent.SSHAgentBuildWrapper.preCheckout(SSHAgentBuildWrapper.java:189) at jenkins.scm.SCMCheckoutStrategy.preCheckout(SCMCheckoutStrategy.java:76) at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:528) at hudson.model.Run.execute(Run.java:1741) at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43) at hudson.model.ResourceController.execute(ResourceController.java:98) at hudson.model.Executor.run(Executor.java:410) Caused by: java.lang.RuntimeException: Failed to register BouncyCastle as the defaut JCE provider at org.apache.sshd.common.util.SecurityUtils.register(SecurityUtils.java:102) at org.apache.sshd.common.util.SecurityUtils.isBouncyCastleRegistered(SecurityUtils.java:81) at com.cloudbees.jenkins.plugins.sshagent.jna.JNRRemoteAgent.addIdentity(JNRRemoteAgent.java:80) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:884) at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:859) at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:818) at hudson.remoting.UserRequest.perform(UserRequest.java:152) at hudson.remoting.UserRequest.perform(UserRequest.java:50) at hudson.remoting.Request$2.run(Request.java:332) at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) at ......remote call to New jenkins slave (i-2bd55aa7)(Native Method) at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1416) at hudson.remoting.UserResponse.retrieve(UserRequest.java:252) at hudson.remoting.Channel.call(Channel.java:781) at hudson.remoting.RemoteInvocationHandler.invoke(RemoteInvocationHandler.java:249) at com.sun.proxy.$Proxy81.addIdentity(Unknown Source) at com.cloudbees.jenkins.plugins.sshagent.SSHAgentBuildWrapper$SSHAgentEnvironment.<init>(SSHAgentBuildWrapper.java:339) at com.cloudbees.jenkins.plugins.sshagent.SSHAgentBuildWrapper.createSSHAgentEnvironment(SSHAgentBuildWrapper.java:224) ... 7 more Caused by: java.lang.InternalError: cannot create instance of org.bouncycastle.jcajce.provider.symmetric.IDEA$Mappings : java.lang.ClassCastException: org.bouncycastle.jcajce.provider.symmetric.IDEA$Mappings cannot be cast to org.bouncycastle.jcajce.provider.util.AlgorithmProvider at org.bouncycastle.jce.provider.BouncyCastleProvider.loadAlgorithms(Unknown Source) at org.bouncycastle.jce.provider.BouncyCastleProvider.setup(Unknown Source) at org.bouncycastle.jce.provider.BouncyCastleProvider.access$000(Unknown Source) at org.bouncycastle.jce.provider.BouncyCastleProvider$1.run(Unknown Source) at java.security.AccessController.doPrivileged(Native Method) at org.bouncycastle.jce.provider.BouncyCastleProvider.<init>(Unknown Source) at org.apache.sshd.common.util.SecurityUtils$BouncyCastleRegistration.run(SecurityUtils.java:114) at org.apache.sshd.common.util.SecurityUtils.register(SecurityUtils.java:96) at org.apache.sshd.common.util.SecurityUtils.isBouncyCastleRegistered(SecurityUtils.java:81) at com.cloudbees.jenkins.plugins.sshagent.jna.JNRRemoteAgent.addIdentity(JNRRemoteAgent.java:80) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at hudson.remoting.RemoteInvocationHandler$RPCRequest.perform(RemoteInvocationHandler.java:884) at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:859) at hudson.remoting.RemoteInvocationHandler$RPCRequest.call(RemoteInvocationHandler.java:818) at hudson.remoting.UserRequest.perform(UserRequest.java:152) at hudson.remoting.UserRequest.perform(UserRequest.java:50) at hudson.remoting.Request$2.run(Request.java:332) at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) I did add this line to my java.security file but that didn't help: security.provider.11=org.bouncycastle.jce.provider.BouncyCastleProvider Add Comment

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[b2jrock@java.net (JIRA)]

b2jrock commented on JENKINS-34930

Re: ClassCastException when trying to start ssh-agent If you have the docker-buildstep plugin enabled, you might want to try disabling it. Both these plugins include the bouncycastle provider, but they might not have compatible versions: /var/lib/jenkins/plugins/ssh-agent/WEB-INF/lib/bcprov-jdk15on-1.53.jar /var/lib/jenkins/plugins/docker-build-step/WEB-INF/lib/bcprov-jdk15on-1.51.jar

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[bartvanwissen@gmail.com (JIRA)]

bart van Wissen commented on JENKINS-34930

Re: ClassCastException when trying to start ssh-agent

I don't have that plugin, but I did a find plugins -name bcprov -print and discovered that there are two other plugins which come with bouncycastle: plugins/ec2/WEB-INF/lib/bcprov-jdk15-140.jar plugins/ssh-agent/WEB-INF/lib/bcprov-jdk15on-1.47.jar plugins/vagrant/WEB-INF/classes/vendor/gems/jruby/1.8/gems/bouncy-castle-java-1.5.0146.1/lib/bcprov-jdk15-146.jar I cannot disable the ec2 plugin though, because it manages our slaves.

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[bartvanwissen@gmail.com (JIRA)]

bart van Wissen commented on JENKINS-34930

Re: ClassCastException when trying to start ssh-agent

Removing the vagrant subdirectory seems to have done the trick. Thanks.

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