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3294141 - Error: "500 Internal Server Error" when accessing RWB

Symptom

When accessing Runtime Workbench (RWB) tool in PI/PO system using the URL http://<PO Host>:<PO Port>/rwb/index.jsp, it is possible to see the following error:

500 Internal Server Error

In the XPI inspector and default traces there is also an error similar to the one below:

500 Internal Server Error is returned for HTTP request [https://<PO Host>:<PO Port>/rwb/frames/headline.jsp]:
  component [jsp],
  web module [rwb],
  application [sap.com/com.sap.xi.rwb],
  DC name [sap.com/com.sap.xi.rwb],
  CSN component[BC-XI-IS-WKB],
  problem categorization [com.sap.ASJ.web.000137],
  internal categorization [1467379121].

[EXCEPTION]
java.lang.NoClassDefFoundError: JEE_jsp_rwb__frames_headline_1674283717256$1
at JEE_jsp_rwb__frames_headline_1674283717256._jspService(JEE_jsp_rwb__frames_headline_1674283717256.java:141)
at com.sap.engine.services.servlets_jsp.lib.jspruntime.JspBase.service(JspBase.java:102)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:152)


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Environment

SAP NetWeaver

SAP Process Integration

Product

SAP Process Integration all versions

Keywords

RWB, 500, Internal Server Error, NoClassDefFoundError, PIMON, frames, headline, jsp, HTMLB , KBA , BC-XI-IS-WKB , Runtime Workbench / Monitoring , Problem

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