J2SE Version (please include all output from java -version flag):
 1.6.0-rc-b91

Does this problem occur on J2SE 1.4.x or 5.0.x ?
  No, and does not happen in 1.6.0-rc-b76

Operating System Configuration Information (be specific):
  XP + SP2

Hardware Configuration Information (be specific):
  Pentium 4, 3.00 GHz, 504 MB RAM.

Bug Description:
 Moved to the latest build (91) after working with build 76 and application stopped working:
 It throws the following exception while trying to read a XML file:

java.util.zip.ZipException: ZipFile closed
at java.util.zip.ZipFile.ensureOpenOrZipException(Unknown Source)
at java.util.zip.ZipFile.access$1100(Unknown Source)
at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source)
at java.util.zip.ZipFile$ZipFileInputStream.read(Unknown Source)
at java.io.FilterInputStream.read(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager$RewindableInputStream.read(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
at org.apache.xerces.impl.XMLVersionDetector.determineDocVersion(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.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)
at com.mercury.ftjadin.utils.xmlParsing.DomParserFactory.run(DomParserFactory.java:112)


Steps to Reproduce (be specific):
  It happens when calling org.apache.xerces.parsers.DOMParser.parse for a XML
  file that is in a jar within the class path.
a sample application reproducing the bug had been added into the bug report.
The application works correctly on build 76 but fails on 91.
To use it, extract the attached zip, to c:\temp (you must use this hardcoded folder).
Then run the file c:\temp\mustandBug\run.bat