DO NOT REPLY [Bug 7605] New: - Class loaders doesn't seem to load .zip libraries

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=7605

Class loaders doesn't seem to load .zip libraries

           Summary: Class loaders doesn't seem to load .zip libraries
           Product: Tomcat 4
           Version: 4.0.3 Final
          Platform: PC
        OS/Version: Windows NT/2K
            Status: NEW
          Severity: Normal
          Priority: Other
         Component: Catalina
        AssignedTo: tomcat-dev@jakarta.apache.org
        ReportedBy: dolmen@hotmail.com


Catalina class loaders doesn't seem to load .zip libraries.

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The problem :
The standard Java class loader accepts both .zip and .jar. Catalina accepts only
.jar. Nothing is said about that in the documentation (class-loader-howto.html).

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Steps to reproduce:

I was trying to install the Oracle Thin driver for use in webapps within Tomcat
4.0.3. Windows NT 4.0. JDK 1.3.1_01.
This driver is distributed in an archive named "classes12.zip".

I tried to put this zip in %CATALINA_HOME%/lib because I want to share it
between multiple webapps. I also tried to move it to
%CATALINE_HOME%/webapps/%MYWEBAPP%/WEB-INF/lib. None worked.
When the zip is %JAVA_HOME%/jre/lib/ext, it works. But that is not what I want.

I finally found that if I put "classes12.zip" in %CATALINA_HOME%/lib and rename
it to "classes12.jar" it works.

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Proposed fix:

The bug is probably in org.apache.catalina.loader.WebAppClassLoader (lines 815,
831) and org.apache.catalina.loader.StandardClassLoader (line 1082) where there
is a filter on ".jar" extension only.

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