PH59037: CWWKE0701E ClassCastException after configuring Oracle RAC jdbc driver in CICS Liberty JVM server sever.xml

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• After adding Oracle RAC configuration settings to the Liberty
  server.xml file the following is seen at CICS startup :
  
  CWWKE0701E: bundle xxxxxxxx  :
  The activate method has thrown an exception
  java.lang.ClassCastException: java.lang.String
  incompatible with java.lang.Integer
  at com.ibm.cics.wlp.config.CICSConfigurationAdmin.processDataSo
  urce(CICSConfigurationAdmin.java:221)
  at com.ibm.cics.wlp.config.CICSConfigurationAdmin.activate(CICS
  ConfigurationAdmin.java:113)
  .
  In addition, when running a test application, called by a link
  (using @CICSProgram), the following error is seen :
  
  java.lang.ClassNotFoundException:
  COM.ibm.db2os390.sqlj.jdbc.DB2SQLJDriver
  
  If the Oracle configuration settings are removed from the
  server.xml file then all works as expected.
  

Local fix

• remove Oracle RAC configuration from the server.xml file
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All CICS Users.                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: A ClassCastException occurs when        *
  *                      defining an Oracle datasource in the    *
  *                      JVMSERVER server.xml. Further,          *
  *                      applications called by a link result in *
  *                      a ClassNotFoundException.               *
  ****************************************************************
  After adding an Oracle datasource to the JVMSERVER server.xml,
  the following error caused by a ClassCastException appears in
  messages.log as the JVMSERVER enables:
  
  CWWKE0701E: bundle xxxxxxxx  :
  The activate method has thrown an exception
  java.lang.ClassCastException: java.lang.String
  incompatible with java.lang.Integer
  at com.ibm.cics.wlp.config.CICSConfigurationAdmin.processDataSo
  urce(CICSConfigurationAdmin.java:221)
  at com.ibm.cics.wlp.config.CICSConfigurationAdmin.activate(CICS
  ConfigurationAdmin.java:113)
  
  When you then run an application called by a link (using
  @CICSProgram), the following error can be observed:
  
  SystemErr R java.lang.ClassNotFoundException:
  COM.ibm.db2os390.sqlj.jdbc.DB2SQLJDriver
  

Problem conclusion

• CICS has been updated to handle the datasource correctly.
  

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:

  UI95914

Modules/Macros

• DFJ@H525
  

Fix information

• Fixed component name

  CICS TS Z/OS V6

• Fixed component ID

  5655YA100

Applicable component levels

• R400 PSY UI95914

     UP24/03/09 P F403

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.