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Cisco Employee

Error while loading JAVA packages

We have been struggling with this issue from past 2-3 weeks.

This issue doesn't happen when we run our packages in NSO inside a LXC on XR box.

But occurs when we run on a ubuntu/CEL VM.

Any pointers in helping to resolve the issue is appreciated.

 

<ERROR> 16-Sep-2019::22:52:46.524 NedMuxManager JVM-Launcher: - Exception while executing an LOAD_PACKAGE transition

com.tailf.ncs.NcsException: com.tailf.packages.ned.iosxr.IosxrNedCli

        at com.tailf.ncs.ctrl.AbstractPDEntry.load(AbstractPDEntry.java:255)

        at com.tailf.ncs.ctrl.AbstractPDEntry$1.execute(AbstractPDEntry.java:84)

        at com.tailf.ncs.ctrl.fsm.FSM$Transition.execute(FSM.java:286)

        at com.tailf.ncs.ctrl.fsm.FSM.event(FSM.java:174)

        at com.tailf.ncs.ctrl.NedMuxManager.loadPackageEvent(NedMuxManager.java:166)

        at com.tailf.ncs.NcsMain.loadPackage(NcsMain.java:955)

        at com.tailf.ncs.NcsMain.access$1000(NcsMain.java:88)

        at com.tailf.ncs.NcsMain$8.execute(NcsMain.java:302)

        at com.tailf.ncs.ctrl.fsm.FSM$Transition.execute(FSM.java:286)

        at com.tailf.ncs.ctrl.fsm.FSM.event(FSM.java:174)

        at com.tailf.ncs.NcsMain.mainLoop(NcsMain.java:693)

        at com.tailf.ncs.NcsMain.run(NcsMain.java:489)

        at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.ClassNotFoundException: com.tailf.packages.ned.iosxr.IosxrNedCli

        at javax.management.loading.MLet.findClass(MLet.java:988)

        at javax.management.loading.MLet.findClass(MLet.java:922)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)

        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

        at com.tailf.ncs.ctrl.AbstractPDEntry.load(AbstractPDEntry.java:244)

        ... 12 more

<ERROR> 16-Sep-2019::22:52:46.525 NedMuxManager JVM-Launcher: - Exception while executing an EXCEPTION  transition for exception com.tailf.packages.ned.iosxr.IosxrNedCli

com.tailf.ncs.NcsException: com.tailf.packages.ned.iosxr.IosxrNedCli

        at com.tailf.ncs.ctrl.AbstractPDEntry.load(AbstractPDEntry.java:255)

        at com.tailf.ncs.ctrl.AbstractPDEntry$1.execute(AbstractPDEntry.java:84)

        at com.tailf.ncs.ctrl.fsm.FSM$Transition.execute(FSM.java:286)

        at com.tailf.ncs.ctrl.fsm.FSM.event(FSM.java:174)

        at com.tailf.ncs.ctrl.NedMuxManager.loadPackageEvent(NedMuxManager.java:166)

        at com.tailf.ncs.NcsMain.loadPackage(NcsMain.java:955)

        at com.tailf.ncs.NcsMain.access$1000(NcsMain.java:88)

        at com.tailf.ncs.NcsMain$8.execute(NcsMain.java:302)

        at com.tailf.ncs.ctrl.fsm.FSM$Transition.execute(FSM.java:286)

        at com.tailf.ncs.ctrl.fsm.FSM.event(FSM.java:174)

        at com.tailf.ncs.NcsMain.mainLoop(NcsMain.java:693)

        at com.tailf.ncs.NcsMain.run(NcsMain.java:489)

        at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.ClassNotFoundException: com.tailf.packages.ned.iosxr.IosxrNedCli

        at javax.management.loading.MLet.findClass(MLet.java:988)