2398381 - NullPointerException when opening Message Monitor

You try to open the Message Monitor in PIMON but you get a 500 Internal Server Error:

In the default trace you notice the following errors:

java.lang.NullPointerException: while trying to invoke the method java.lang.String.equals(java.lang.Object) of an object loaded from local variable 'caption'
   at com.sap.tc.lm.itsam.co.ui.xi.msg.ximessagedetailed.XIMessageDetailed.changeComponent(XIMessageDetailed.java:5709)
   at com.sap.tc.lm.itsam.co.ui.xi.msg.ximessagedetailed.wdp.InternalXIMessageDetailed.changeComponent(InternalXIMessageDetailed.java:1627)
   at com.sap.tc.lm.itsam.co.ui.xi.msg.ximessagedetailed.MessageFilter.handleContextSensitiveNavigation(MessageFilter.java:564)
   at com.sap.tc.lm.itsam.co.ui.xi.msg.ximessagedetailed.wdp.InternalMessageFilter.handleContextSensitiveNavigation(InternalMessageFilter.java:908)
   at com.sap.tc.lm.itsam.co.ui.xi.msg.ximessagedetailed.XIMessageDetailedWindow.onPlugApplicationInput(XIMessageDetailedWindow.java:174)

• SAP enhancement package 1 for SAP NetWeaver 7.3
• SAP NetWeaver 7.4
• SAP NetWeaver 7.5

PIMON, Message Monitor, NullPointerException, SLD, Technical System, Domain, PO, PI, Process Integration, Process Orchestration, XIMessageDetailed, 500 Internal Server Error is returned for HTTP request, Process Integration 7.31, PI 7.31, Process Orchestration 7.4, PI 7.4, PO 7.4, Process Orchestration 7.5, PI 7.5, PO 7.5, XI, AEX , KBA , BC-NWA-XPI , Process Integration (PI) Monitoring , Problem