DO NOT REPLY [Bug 32193] New: - NullPointerException when using non-Apache XML parser (Xerces) and/or JXTransformer

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http://issues.apache.org/bugzilla/show_bug.cgi?id=32193

NullPointerException when using non-Apache XML parser (Xerces) and/or JXTransformer

           Summary: NullPointerException when using non-Apache XML parser
                    (Xerces) and/or JXTransformer
           Product: Fop
           Version: 0.20.5
          Platform: Other
        OS/Version: Linux
            Status: NEW
          Severity: Critical
          Priority: Other
         Component: general
        AssignedTo: fop-dev@xml.apache.org
        ReportedBy: adams@cis.gvsu.edu


On my cite we had an XML parser created by Oracle
(oracle.xml.parser.v2.SAXParser) installed in the system, so FOP was picking it
up and using it before it found Xerces.  Same for the JXTransformer class in
oracle.xml.jaxp.JXTransformer.  This created a NullPointerException in
JXTransformer.reportXSLException().

My kludge solution was to modify fop.sh and to include both xercesImpl.jar and
xalan.jar in -Xbootclasspath/p: (so they are searched before ANY other JARs). 
This eliminated the NullPointerException and everything worked perfectly.

In this bugzilla form I listed this under with OS Linux, but I suspect it would
produce the same effects on any other system where Xerces and Xalan aren't found
first.