RE: java.lang.NullPointerException creating org.apache.xerces.par sers.SAXParser

[Eric Jacobson <EJ...@IVW.com>]

Here is the call stack when the exception is thrown.

java.lang.NullPointerException
at
org.apache.xerces.utils.SymbolCache.addSymbolToCache(SymbolCache.java:176)
at org.apache.xerces.utils.StringPool.addSymbol(StringPool.java:394)
at
org.apache.xerces.validators.common.XMLValidator.init(XMLValidator.java:1358
)
at
org.apache.xerces.validators.common.XMLValidator.<init>(XMLValidator.java:30
0)
at org.apache.xerces.framework.XMLParser.<init>(XMLParser.java:202)
at org.apache.xerces.parsers.SAXParser.<init>(SAXParser.java:164)
at
org.ivw.odp.ODPDocumentHandlerIBM.test(org/ivw/odp/ODPDocumentHandlerIBM:638
)

Looks like an issue with the SymbolCache logic?  This is difficult to debug
since it is being run inside Oracle 8i.
Any help would be great, thanks.

>  -----Original Message-----
> From: 	Eric Jacobson  
> Sent:	Friday, August 18, 2000 5:46 PM
> To:	'xerces-j-dev@xml.apache.org'
> Subject:	java.lang.NullPointerException creating
> org.apache.xerces.parsers.SAXParser
> 
> I hope I am submitting this to the correct place.  I am using xerces Java
> Parser version 1.1.3, JDK 1.2, and Oracle 8i 8.1.6 release 2.  I have
> written some Java classes to parse the Open Directory Project rdf dump
> files and put the information into Oracle database tables.  Everything
> works great when I run my code from command line or JDeveloper.  To
> maximize performance I loaded my classes into Oracle so I can run the
> whole thing from a SQL CALL statement inside Oracle.  When I try to run
> the code in Oracle I get a java.lang.NullPointerException on the line: 
> SAXParser parser = new org.apache.xerces.parsers.SAXParser();
> I have tried loading the xerces.jar and xml4j.jar into Oracle, but it
> makes no difference.  Does anyone have an idea of why this would happen?
> Could it possibly be a bug in the constructor of the SAXParser class, or
> maybe the Oracle JVM, or possibly something I'm doing?  All other external
> classes I use seem to behave fine.
> Thanks for any help or suggestions,
> 
> Eric Jacobson
> Development Engineer
> Internet Venture Works