DO NOT REPLY [Bug 24245] New: - Use of ContextClassLoader is not appropriate

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=24245

Use of ContextClassLoader is not appropriate

           Summary: Use of ContextClassLoader is not appropriate
           Product: XalanJ2
           Version: 2.5
          Platform: Other
        OS/Version: Other
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: org.apache.xml.utils
        AssignedTo: xalan-dev@xml.apache.org
        ReportedBy: extern.thomas.pasch@volkswagen.de


On jdk >=1.2 (but <1.4) xalan uses the ContextClassLoader to load classes of 
its own distribution. This is never appropriate and will lead to 
ClassCastException in a J2EE setting.

For loading classes of its own distribution, the (current) ClassLoader that has 
loaded the distribution classes (i.e. xalan.jar) should be used.

Glory Details:
--------------
The problem shows up when there is a (outdated) xalan in your (ClassLoader) 
path but you want to use a newer version of xalan in your application. Note 
that this is NOT an obscure setting but the normal case in every J2EE (1.3) 
application because you are guarantied to have JAXP XML access, but often to an 
outdated product (in my case I'm using IBM WAS 5.0.1 on Solaris).  

In principle the problem is the same as reported for xerces 
http://nagoya.apache.org/bugzilla/show_bug.cgi?id=24244 . This is because the 
offending class is the same in both distributions: 
org.apache.xml.utils.ObjectFactory.