PH65873: NULLPOINTEREXCEPTION IN DWLMCLIENTIMPL WHEN STARTING WEBSPHERE PROXY SERVER

APAR status

• Closed as program error.

Error description

• When trying to start the WebSphere Proxy Server, a
  NullPointerException is encountered in
  com.ibm.ws.dwlm.client.DWLMClientImpl.
  
  
  Sample Error:
  
  [2/18/25 3:13:27:358 EDT] 00000002 WsServerImpl E WSVR0100W: An
  error occurred initializing, myProxyServer [class
  com.ibm.ws.runtime.component.ServerImpl]
  com.ibm.ws.exception.ConfigurationError: Unable to create
  DWLMCLient.
  at com.ibm.ws.proxy.filter.ProxyFilterService.initializeDWLMCli
  ent(ProxyFilterService.java:1824)
  at com.ibm.ws.proxy.filter.ProxyFilterService.createDWLMFilters
  (ProxyFilterService.java:1393)
  at com.ibm.ws.proxy.filter.ProxyFilterService.deployHttpProxyFi
  lters(ProxyFilterService.java:282)
  at com.ibm.ws.proxy.filter.ProxyFilterService.initialize(ProxyF
  ilterService.java:145)
  at com.ibm.ws.runtime.component.ContainerHelper.initWsComponent
  (ContainerHelper.java:1193)
  at com.ibm.ws.runtime.component.ContainerHelper.initializeCompo
  nent(ContainerHelper.java:1100)
  at com.ibm.ws.runtime.component.ContainerHelper.initializeCompo
  nents(ContainerHelper.java:902)
  ....
  Caused by: java.lang.NullPointerException
  at com.ibm.ws.dwlm.client.DWLMClientImpl.init(DWLMClientImpl.ja
  va:120)
  at com.ibm.wsspi.dwlm.client.DWLMClientFactory.getDWLMClient(DW
  LMClientFactory.java:40)
  at com.ibm.ws.proxy.filter.ProxyFilterService.initializeDWLMCli
  ent(ProxyFilterService.java:1819)
  ... 45 more
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  who use the ProxyServer or Java On Demand   *
  *                  Router(ODR)                                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: After applying PH63778 or upgrading to  *
  *                      9.0.5.22 and 8.5.5.27, a                *
  *                      NullPointerException(NPE) may be        *
  *                      thrown                                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  After applying PH63778 or upgrading to 9.0.5.22 and 8.5.5.27, a
  NullPointerException(NPE) may be thrown during the ProxyServer
  or
  Java On Demand Router scenarios(ODR).
  

Problem conclusion

• The bug has been fixed.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.28 and 9.0.5.24. 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