exception during parsing

[Ron Rothblum <RO...@il.ibm.com>]

I use the following code to parse an xml file:


public boolean parse(final InputStream configuation) {
      DOMParser parser = new DOMParser();
      ParserErrorHandler errHandler = new ParserErrorHandler();

            parser.setFeature("http://xml.org/sax/features/validation",
true);
            parser.setFeature(
"http://apache.org/xml/features/validation/schema", true);
            parser.setFeature(
"http://apache.org/xml/features/dom/defer-node-expansion", false);
            parser.setFeature("http://xml.org/sax/features/namespaces",
true);

            parser.setFeature(
"http://apache.org/xml/features/validation/schema-full-checking", true);
            parser.setFeature(
"http://apache.org/xml/features/validation/schema/element-default", true);
            parser.setFeature(
"http://apache.org/xml/features/validation/schema/normalized-value", true);

            parser.setErrorHandler(errHandler);
            parser.parse(new InputSource(configuation));

and sometimes I get the following exception:

java.lang.ExceptionInInitializerError: java.lang.NullPointerException
      at
org.apache.xerces.impl.xs.SubstitutionGroupHandler.<clinit>(Unknown Source)
      at org.apache.xerces.impl.xs.XMLSchemaValidator.<init>(Unknown
Source)
      at
org.apache.xerces.parsers.IntegratedParserConfiguration.configurePipeline(Unknown

Source)
      at org.apache.xerces.parsers.DTDConfiguration.reset(Unknown Source)
      at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
      at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
      at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
      at org.apache.xerces.parsers.DOMParser.parse(Unknown Source)
Exception in thread "main"

adding or commenting a line in a completely different place alters this
behaviour (sometimes I get an exception sometimes the parsing succeeds).
Even adding a line such as System.out.print("") can alter the behaviour. I
have no other threads running simultaneously.

Please help ASAP,
Thanks,

Ron Rothblum.


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