PH40676: ALLOW WEBSPHERE APPLICATION SERVER TO RETURN JAR URLS RATHER THAN WSJAR

APAR status

• Closed as program error.

Error description

• Some open-source frameworks throw errors when trying to process
  "wsjar:" URIs, and WebSphere Application Server does not provide
  a mechanism to return to "jar:" URIs
  

Local fix

• N/A
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM WebSphere Application Server   *
  *                  whose applications are dependent on the     *
  *                  "jar"                                       *
  *                  protocol for resource URLs                  *
  ****************************************************************
  * PROBLEM DESCRIPTION: WebSphere Application Server utilizes a *
  *                      custom URL protocol to manage jar files *
  *                      utilized by its class loaders           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The WebSphere Application Server class loaders use a custom URL
  protocol, "wsjar", to handle jar files, providing some
  additional
  internal functionality and lifecycle management. As a result,
  URLs
  returned by the class loader's getResource() method also use
  that
  protocol. This can cause issues for users whose applications are
  specifically dependent on the "jar" protocol being returned from
  a
  getResource() call.
  

Problem conclusion

• The server can now be configured to utilize "jar" instead of
  "wsjar". To do this, add JVM custom property
  "com.ibm.ws.classloader.useJarUrls" with the value "true" or add
  "-Dcom.ibm.ws.classloader.useJarUrls=true" to the server's
  generic JVM arguments.
  
  The fix for this APAR is targeted for inclusion in fix packs
  8.5.5.22 and 9.0.5.11. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels