Jenkins agent error

Anyone run a Jenkins service that connects to the IBM I. I am getting an error when it tries to run the agent. Running java version "1.8.0_321" on the iseries.

Thanks
John Slanina


Jul 14, 2022 11:29:37 AM hudson.remoting.UserRequest perform
WARNING: LinkageError while performing UserRequest:hudson.slaves.SlaveComputer$SlaveVersion@6b0ffad4
java.lang.UnsupportedClassVersionError: Failed to load hudson.slaves.SlaveComputer$SlaveVersion
at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:460)
at hudson.remoting.RemoteClassLoader.loadRemoteClass(RemoteClassLoader.java:292)
at hudson.remoting.RemoteClassLoader.loadWithMultiClassLoader(RemoteClassLoader.java:269)
at hudson.remoting.RemoteClassLoader.findClass(RemoteClassLoader.java:228)
at java.lang.ClassLoader.loadClassHelper(ClassLoader.java:945)
at java.lang.ClassLoader.loadClass(ClassLoader.java:890)
at java.lang.ClassLoader.loadClass(ClassLoader.java:873)
at java.lang.Class.forNameImpl(Native Method)
at java.lang.Class.forName(Class.java:409)
at hudson.remoting.MultiClassLoaderSerializer$Input.resolveClass(MultiClassLoaderSerializer.java:132)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:2181)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:2045)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2382)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1862)
at java.io.ObjectInputStream.readObjectImpl(ObjectInputStream.java:628)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:526)
at hudson.remoting.UserRequest.deserialize(UserRequest.java:289)
at hudson.remoting.UserRequest.perform(UserRequest.java:189)
at hudson.remoting.UserRequest.perform(UserRequest.java:54)
at hudson.remoting.Request$2.run(Request.java:376)
at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:78)
at hudson.remoting.InterceptingExecutorService$$Lambda$8/0x353adf68.call(Unknown Source)
at java.util.concurrent.FutureTask.run(FutureTask.java:277)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1160)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at java.lang.Thread.run(Thread.java:825)
Caused by: java.lang.UnsupportedClassVersionError: JVMCFRE003 bad major version; class=hudson/slaves/SlaveComputer$SlaveVersion, offset=6
at java.lang.ClassLoader.defineClassInternal(ClassLoader.java:397)
at java.lang.ClassLoader.defineClass(ClassLoader.java:358)
at java.lang.ClassLoader.defineClass(ClassLoader.java:313)
at hudson.remoting.RemoteClassLoader.loadClassFile(RemoteClassLoader.java:458)
... 25 more