Support Article

Listener NullPointer error during Pega startup

SA-36208

Summary



During Pega startup, some listener related errors appears in the log


Error Messages



2017-02-28 03:27:07,204 | ERROR | PRDWSPG208 | : | services.listener.ListenerStateManagerImpl | Msg: Unexpected exception.
java.lang.NullPointerException: at index 0
at com.google.common.collect.ObjectArrays.checkElementNotNull(ObjectArrays.java:191)
at com.google.common.collect.ImmutableList.construct(ImmutableList.java:320)
at com.google.common.collect.ImmutableList.asImmutableList(ImmutableList.java:308)


Steps to Reproduce



Start Pega.


Root Cause



This is only a log error entry and no other impact. This error is related to the Pega DSM component which user is not currently using or configured properly.

Resolution



Disable DSM component

Perform the following local-change: Update the following dynamic system setting to be false to disable DSM:
Pega-Engine
prconfig/initservices/dnode/default

Published April 7, 2017 - Updated April 24, 2017

Have a question? Get answers now.

Visit the Collaboration Center to ask questions, engage in discussions, share ideas, and help others.