PI51798: Liberty JAX-RS implementation may throw NullPointerException

8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• WebSphere Liberty Profile JAX-RS implementation may throw
  NullPointerException SRVE0276E: Error while initializing
  Servlet [Test]...
  Caused by: java.lang.NullPointerException
  at
  com.ibm.ws.jaxrs20.providers.customexceptionmapper.CustomExc
  epti
  onMapper
  Register.getFlagFromClass(CustomExceptionMapperRegister.java
  :71)
  ...
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Profile - JAX-RS 2.0 Web     *
  *                  Services                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Liberty JAX-RS 2.0 implementation may   *
  *                      throw a NullPointerException            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the code is trying to get the type of some class, null
  would be returned. Then the NullPointerException happens in this
  case becuase there is no null value check:
  NullPointerException SRVE0276E: Error while initializing Servlet
  [Test]...
  Caused by: java.lang.NullPointerException
  at
  com.ibm.ws.jaxrs20.providers.customexceptionmapper.CustomExcepti
  onMapper
  

Problem conclusion

• Added not null check to the method where the
  NullPointerException happens.
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 8.5.5.10.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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

• R855 PSY

     UP