ClassNotFound Error while accessing Shared Libarary from Web Service WAR

Question

Hi All,
I have developed a JAX-WS based Web Service(WAR file) using Jdeveloper 11g and deployed it to Web Logic 10.3.4 server. My web service requires access to a shared library(a JAR file ) which is already deployed on the server. So, I had modified the MANIFEST.MF file to have the reference to shared library as a
optional package(since my web service is WAR) as below.
Manifest-Version: 1.0
Extension-List: bizlib
bizlib-Extension-Name: biz_lib
bizlib-Implementation-Version: Oracle Version 1.1
The biz_lib is the Name of the library as seen in the Deployments section of the Web Logic Admin Console. Since there is no extension name given explicitly in the MANIFEST file of shared library, I have mentioned the name as seen in the deployments for the library. After deploying my WAR, when I go into the details of the Shared Library - biz_lib, the Admin console shows my web Service as part of - "Applications that reference this Library" section. So, I presume that my Manifest is correct. But when I test my web service from Admin Console, I face - java.lang.NoClassDefFoundError. The class that is pointed out as part of the error is part of the referenced Shared Library - biz_lib ( part of a JAR file that is listed in the Class-Path: section of shared library’s MANIFEST file). My Web Application is unable to find the class files in the shared library. Please help me. Please let me know any further information is required.
Regards,
Ram

Answer 1

          I am not sure if this helps. I encountered a similar problem and
          finally resolved it. Initially I got the error 500 - Internal
          Server error, and was not able to access my servlet which I deployed
          using .war file.
          We should make sure that the directory structure under
          WEB-INF/classes directory should reflect the package that
          your servlet belongs to. I had a HelloWorld servlet with
          the statement "package examples.servlets;" on the first line.
          So after compiling this servlet, the HelloWorld.class file
          should be copied into WEB-INF/classes/examples/servlets directory
          and not into WEB-INF/classes directory. After making this change,
          I made a new .war file and that fixed the problem.
          -Balaji.
          "san" <[email protected]> wrote:
          >
          >Hi,
          >
          > i depolyed a WAR file into WL 5.1 as a unzipped file,
          >and when i tried to access sevlet it din't come up, i got a error
          >"404 file not found,"
          >
          >my servlet classes are in WEB_INF/classes directory and i have register
          >the servlet
          >in WEB.xml file
          >
          >but still i couldn't access any servlet from my webApp ie WAR file ,
          >
          >can anyone help me out, Thanks in advance