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Bug
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Resolution: Duplicate
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Minor
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None
Git-client plugin version 3.11.2 is incompatible with Jenkins workers running Java 8, and leads to the following sort of error:
13:40:43 java.lang.UnsupportedClassVersionError: com/trilead/ssh2/ServerHostKeyVerifier has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0 13:40:43 at java.lang.ClassLoader.defineClass1(Native Method) 13:40:43 at java.lang.ClassLoader.defineClass(ClassLoader.java:756) 13:40:43 at java.lang.ClassLoader.defineClass(ClassLoader.java:635) 13:40:43 at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:458) 13:40:43 Caused: java.lang.UnsupportedClassVersionError: Failed to load com.trilead.ssh2.ServerHostKeyVerifier 13:40:43 at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:460) 13:40:43 at hudson.remoting.RemoteClassLoader.loadRemoteClass(RemoteClassLoader.java:300) 13:40:43 at hudson.remoting.RemoteClassLoader.loadWithMultiClassLoader(RemoteClassLoader.java:269) 13:40:43 at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:228) 13:40:43 at java.lang.ClassLoader.loadClass(ClassLoader.java:418) 13:40:43 at java.lang.ClassLoader.loadClass(ClassLoader.java:351) 13:40:43 at java.lang.ClassLoader.defineClass1(Native Method) 13:40:43 at java.lang.ClassLoader.defineClass(ClassLoader.java:756) 13:40:43 at java.lang.ClassLoader.defineClass(ClassLoader.java:635) 13:40:43 at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:458) 13:40:43 Also: hudson.remoting.Channel$CallSiteStackTrace: Remote call to <HOSTNAME> 13:40:43 at hudson.remoting.Channel.attachCallSiteStackTrace(Channel.java:1784) 13:40:43 at hudson.remoting.UserRequest$ExceptionResponse.retrieve(UserRequest.java:356) 13:40:43 at hudson.remoting.Channel.call(Channel.java:1000) 13:40:43 at hudson.FilePath.act(FilePath.java:1194) 13:40:43 at hudson.FilePath.act(FilePath.java:1183) 13:40:43 at org.jenkinsci.plugins.gitclient.Git.getClient(Git.java:140) 13:40:43 at hudson.plugins.git.GitSCM.createClient(GitSCM.java:916) 13:40:43 at hudson.plugins.git.GitSCM.createClient(GitSCM.java:847) 13:40:43 at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1297) 13:40:43 at hudson.scm.SCM.checkout(SCM.java:540) 13:40:43 at hudson.model.AbstractProject.checkout(AbstractProject.java:1217) 13:40:43 at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:647) 13:40:43 at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85) 13:40:43 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:519) 13:40:43 at hudson.model.Run.execute(Run.java:1897) 13:40:43 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44) 13:40:43 at hudson.model.ResourceController.execute(ResourceController.java:101) 13:40:43 at hudson.model.Executor.run(Executor.java:442) 13:40:43 Caused: java.lang.UnsupportedClassVersionError: Failed to load org.jenkinsci.plugins.gitclient.verifier.AbstractJGitHostKeyVerifier 13:40:43 at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:460) 13:40:43 at hudson.remoting.RemoteClassLoader.loadRemoteClass(RemoteClassLoader.java:292) 13:40:43 at hudson.remoting.RemoteClassLoader.loadWithMultiClassLoader(RemoteClassLoader.java:269) 13:40:43 at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:228) 13:40:43 at java.lang.ClassLoader.loadClass(ClassLoader.java:418) 13:40:43 at java.lang.ClassLoader.loadClass(ClassLoader.java:351) 13:40:43 at java.lang.Class.getDeclaredMethods0(Native Method) 13:40:43 at java.lang.Class.privateGetDeclaredMethods(Class.java:2729) 13:40:43 at java.lang.Class.getDeclaredMethod(Class.java:2156) 13:40:43 at java.io.ObjectStreamClass.getPrivateMethod(ObjectStreamClass.java:1643) 13:40:43 at java.io.ObjectStreamClass.access$1700(ObjectStreamClass.java:79) 13:40:43 at java.io.ObjectStreamClass$3.run(ObjectStreamClass.java:520) 13:40:43 at java.io.ObjectStreamClass$3.run(ObjectStreamClass.java:494) 13:40:43 at java.security.AccessController.doPrivileged(Native Method) 13:40:43 at java.io.ObjectStreamClass.<init>(ObjectStreamClass.java:494) 13:40:43 at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:391) 13:40:43 at java.io.ObjectStreamClass.initNonProxy(ObjectStreamClass.java:681) 13:40:43 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1942) 13:40:43 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1808) 13:40:43 at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1942) 13:40:43 at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1808) 13:40:43 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2099) 13:40:43 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1625) 13:40:43 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2344) 13:40:43 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2268) 13:40:43 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2126) 13:40:43 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1625) 13:40:43 at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:2344) 13:40:43 at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:2268) 13:40:43 at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2126) 13:40:43 at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1625) 13:40:43 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:465) 13:40:43 at java.io.ObjectInputStream.readObject(ObjectInputStream.java:423) 13:40:43 at hudson.remoting.UserRequest.deserialize(UserRequest.java:289) 13:40:43 at hudson.remoting.UserRequest.perform(UserRequest.java:189) 13:40:43 at hudson.remoting.UserRequest.perform(UserRequest.java:54) 13:40:43 at hudson.remoting.Request$2.run(Request.java:376) 13:40:43 at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:78) 13:40:43 at java.util.concurrent.FutureTask.run(FutureTask.java:266) 13:40:43 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) 13:40:43 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) 13:40:43 at java.lang.Thread.run(Thread.java:748) 13:40:43 Caused: java.io.IOException: Remote call on <HOSTNAME> failed 13:40:43 at hudson.remoting.Channel.call(Channel.java:1004) 13:40:43 at hudson.FilePath.act(FilePath.java:1194) 13:40:43 at hudson.FilePath.act(FilePath.java:1183) 13:40:43 at org.jenkinsci.plugins.gitclient.Git.getClient(Git.java:140) 13:40:43 at hudson.plugins.git.GitSCM.createClient(GitSCM.java:916) 13:40:43 at hudson.plugins.git.GitSCM.createClient(GitSCM.java:847) 13:40:43 at hudson.plugins.git.GitSCM.checkout(GitSCM.java:1297) 13:40:43 at hudson.scm.SCM.checkout(SCM.java:540) 13:40:43 at hudson.model.AbstractProject.checkout(AbstractProject.java:1217) 13:40:43 at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:647) 13:40:43 at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:85) 13:40:43 at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:519) 13:40:43 at hudson.model.Run.execute(Run.java:1897) 13:40:43 at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:44) 13:40:43 at hudson.model.ResourceController.execute(ResourceController.java:101) 13:40:43 at hudson.model.Executor.run(Executor.java:442)
We are unable to upgrade Java on these workers (they alone are pinned to Java 8 because we still need it around for a couple of things). We solved the issue by downgrading to version 3.11.0, but of course we would like to have the security fixes. Would it be possible to recompile the plugin such that it retains compatibility with Java 8?
Thanks,
Adam Compton
- duplicates
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- Closed
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