Jenkins log contains many entries as shown below. I believe these should be suppressed by isClosedChannelException() in https://github.com/jenkinsci/workflow-api-plugin/commit/12f6b094cead7aef96b57a0bf1d689147d678a15 :

WARNING o.j.p.w.l.GCFlushedOutputStream$FlushRef#lambda$static$0
java.io.IOException: Stream Closed
    at java.base/java.io.FileOutputStream.writeBytes(Native Method)
    at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354)
    at org.apache.commons.io.output.ProxyOutputStream.write(ProxyOutputStream.java:147)
    at org.jenkinsci.plugins.workflow.log.DelayBufferedOutputStream$FlushControlledOutputStream.write(DelayBufferedOutputStream.java:127)
    at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81)
    at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142)
    at org.jenkinsci.plugins.workflow.log.GCFlushedOutputStream$FlushRef.lambda$static$0(GCFlushedOutputStream.java:98)
    at jenkins.security.ImpersonatingScheduledExecutorService$1.run(ImpersonatingScheduledExecutorService.java:67)
    at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
    at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
    at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:829)