2018-03-27 13:08:51.899+0000 [id=4840845]   SEVERE  hudson.remoting.ExportTable#unexportByOid: Trying to unexport an object that's already unexported
java.lang.Exception: Object appears to be deallocated at lease before Tue Mar 27 07:59:42 CDT 2018
    at hudson.remoting.ExportTable.diagnoseInvalidObjectId(ExportTable.java:474)
Caused: java.util.concurrent.ExecutionException: Invalid object ID 19 iota=20
    at hudson.remoting.ExportTable.diagnoseInvalidObjectId(ExportTable.java:478)
    at hudson.remoting.ExportTable.unexportByOid(ExportTable.java:516)
    at hudson.remoting.Channel.unexport(Channel.java:756)
    at hudson.remoting.Channel.unexport(Channel.java:746)
    at hudson.remoting.ProxyOutputStream$Unexport$1.run(ProxyOutputStream.java:345)
    at hudson.remoting.PipeWriter$1.run(PipeWriter.java:158)
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at hudson.remoting.SingleLaneExecutorService$1.run(SingleLaneExecutorService.java:112)
    at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:72)
    at org.jenkinsci.remoting.CallableDecorator.call(CallableDecorator.java:19)
    at hudson.remoting.CallableDecoratorList$1.call(CallableDecoratorList.java:21)
    at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
2018-03-27 13:08:51.899+0000 [id=4840845]   SEVERE  hudson.remoting.ExportTable#unexportByOid: 2nd unexport attempt is here
Command ProxyOutputStream.Unexport(19) created at
    at hudson.remoting.Command.<init>(Command.java:71)
    at hudson.remoting.Command.<init>(Command.java:54)
    at hudson.remoting.ProxyOutputStream$Unexport.<init>(ProxyOutputStream.java:337)
    at hudson.remoting.ProxyOutputStream.finalize(ProxyOutputStream.java:185)
    at java.lang.System$2.invokeFinalize(System.java:1270)
    at java.lang.ref.Finalizer.runFinalizer(Finalizer.java:98)
    at java.lang.ref.Finalizer.access$100(Finalizer.java:34)
    at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:210)

ProxyOutputStream$Unexport