DO NOT REPLY [Bug 9243] New: - Schema CM API : NullPointerException

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=9243

Schema CM API : NullPointerException 

           Summary: Schema CM API : NullPointerException
           Product: Xerces2-J
           Version: 2.0.1
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: XML Schema Structures
        AssignedTo: xerces-j-dev@xml.apache.org
        ReportedBy: george@sync.ro


When trying to get an XSModel from an ASModel for a schema without a specified 
namespace a NullPointerException is thrown. The problem seems to be due to the 
namespace value which is passed as null and in SymbolHash it gets as key 
parameter and hashCode is called on this, thus throwing the 
NullPointerException.

I added some code in SynbolHash at the begining of put, search, and get methods 
to work this out to be able to test further, but I do not think this is the 
best way to handle this:
  if (key == null) {
    key = "";
  }

Test file: xml-xerces/java/data/personal.xsd

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