PH63904: CLASSLOADER ISSUE IN RESTFULWS APPLICATION WHEN @CONTEXT INJECTING AN IMPLEMENTATION CONTAINED WITHIN THE APPLICATION

APAR status

• Closed as program error.

Error description

• An exception similar to the following may occur whenever an
  application provided implementation for an @Context injection
  is in a resource class:
  
  [11/6/24, 12:56:44:706 CST] 0000006d
  g.jboss.resteasy.core.providerfactory.DefaultExceptionMapper E
  RESTEASY002375: Error processing request GET
  /CustomSecurityContext/CustomSecurityContextResource/GetCustom
  -
  com.ibm.ws.jaxrs.fat.customsecuritycontext.CustomSecurityContext
  Resource.requestCustomSecurityInfo
  java.lang.IllegalArgumentException:
  com.ibm.ws.jaxrs.fat.customsecuritycontext.filter.WrapperIntf
  referenced from a method is not visible from class loader:
  org.eclipse.osgi.internal.loader.EquinoxClassLoader @501ed359
  
  This is a behavior change that took place between EE8 and EE9.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of RESTful web services within    *
  *                  the                                         *
  *                  IBM WebSphere Application Server Liberty    *
  *                  Core                                        *
  ****************************************************************
  * PROBLEM DESCRIPTION: An exception similar to the following   *
  *                      may occur whenever an                   *
  *                      application provided implementation for *
  *                      an @Context injection                   *
  *                      is in a resource class:                 *
  *                      [11/6/24, 12:56:44:706 CST] 0000006d    *
  *                      g.jboss.resteasy.core.providerfactory.D *
  *                      efaultExceptionMapper E                 *
  *                      RESTEASY002375: Error processing        *
  *                      request GET                             *
  *                      /CustomSecurityContext/CustomSecurityCo *
  *                      ntextResource/GetCustom                 *
  *                      -                                       *
  *                      com.ibm.ws.jaxrs.fat.customsecuritycont *
  *                      ext.CustomSecurityContext               *
  *                      Resource.requestCustomSecurityInfo      *
  *                      java.lang.IllegalArgumentException:     *
  *                      com.ibm.ws.jaxrs.fat.customsecuritycont *
  *                      ext.filter.WrapperIntf                  *
  *                      referenced from a method is not visible *
  *                      from class loader:                      *
  *                      org.eclipse.osgi.internal.loader.Equino *
  *                      xClassLoader @501ed359                  *
  *                      This is a behavior change that took     *
  *                      place between EE8 and EE9.              *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The base implementation for RESTful web services within
  WebSphere
  Liberty switched from CXF to RESTEasy for EE9 and beyond.  This
  transition introduced the possibility for a failure whenever
  @Context injection is used to inject an interface whose
  implementation is contained within the application itself. This
  occurred due to a difference between how RESTEasy and Liberty
  handle classloading.
  

Problem conclusion

• The problem was resolved by introducing code to allow for
  appropriate classloading within Liberty for the scenario
  described in this APAR.
  
  The fix for this APAR is targeted for inclusion in fix pack
  24.0.0.12. 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

  WAS LIBERTY COR

• Fixed component ID

  5725L2900

Applicable component levels