SAP Knowledge Base Article - Preview

1556854 - Error: NullPointerException using OBN Navigation


  • "java.lang.NullPointerException" will be logged in the defaultTrace each time an OBN navigation is triggered
  • OBN navigation is working correctly!
  • NullPointerException when using OBN navigation in NetWeaver Portal
  • Example of the Error exceptions from defaultTrace:

    ... Error# java.lang.NullPointerException: while trying to
    invoke the method java.lang.String.length() of an object loaded from
    local variable ...

    ... Error# java.lang.StringBuffer ...

    ... Error# ...

    ... Error# ...



SAP NetWeaver Portal  7.00, 7.01 and 7.02


SAP NetWeaver 7.0 ; SAP enhancement package 1 for SAP NetWeaver 7.0 ; SAP enhancement package 2 for SAP NetWeaver 7.0


java.lang.StringBuffer, getOBNMappedParameters,  obntargetcreator, ParameterMapping, OBN Parameter Mapping TRUE,, OBNParametersMapping, ParametersMappingActive , KBA , EP-PIN-OBN , Object Based Navigation , Problem

About this page

This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP ONE Support launchpad (Login required).

Search for additional results

Visit SAP Support Portal's SAP Notes and KBA Search.