PH20373: JAVA.LANG.INDEXOUTOFBOUNDSEXCEPTION THROWN FROM COM.IBM.EJS.CONTAINER.BEANO.REASSOCIATEHANDLELIST

APAR status

• Closed as program error.

Error description

• Following error was found after running a soak test for 12
  hours:
  
  [4/12/19 5:09:34:693 AEDT] 000000cd LocalExceptio E CNTR0019E:
  EJB threw an unexpected (non-declared) exception during
  invocation of method "getChannelTimeOut". Exception data:
  com.ibm.websphere.csi.CSIException: ; nested exception is:
  
  java.lang.IndexOutOfBoundsException: Index: 0, Size: 0
  at
  com.ibm.ejs.container.BeanO.reAssociateHandleList(BeanO.java:194
  7)
  at
  com.ibm.ejs.container.EJBThreadData.pushCallbackBeanO(EJBThreadD
  ata.java:215)
  at com.ibm.ejs.container.EJSHome.createBeanO(EJSHome.java:1332)
  at com.ibm.ejs.container.EJSHome.createBeanO(EJSHome.java:1373)
  at
  com.ibm.ejs.container.activator.UncachedActivationStrategy.atAct
  ivate(UncachedActivationStrategy.java:89)
  at
  com.ibm.ejs.container.activator.Activator.preInvokeActivateBean(
  Activator.java:324)
  at
  com.ibm.ejs.container.EJSContainer.preInvokeActivate(EJSContaine
  r.java:3740)
  at
  com.ibm.ejs.container.EJSContainer.EjbPreInvoke(EJSContainer.jav
  a:3054)
  .
  <lines removed>
  .
  Caused by: java.lang.IndexOutOfBoundsException: Index: 0, Size:
  0
  at java.util.ArrayList.rangeCheck(ArrayList.java:652)
  at java.util.ArrayList.get(ArrayList.java:428)
  at com.ibm.ejs.j2c.HandleList.reAssociate(HandleList.java:266)
  at
  com.ibm.ejs.container.BeanO.reAssociateHandleList(BeanO.java:194
  3)
  ... 73 more
  

Local fix

• No local fix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server using connection handle list.        *
  ****************************************************************
  * PROBLEM DESCRIPTION: Index out of bounds exception can       *
  *                      occur intermittently under high load    *
  *                      with some application not using         *
  *                      get/use/close                           *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The following error may occur, Caused by:
  java.lang.IndexOutOfBoundsException: Index: 0, Size:
  0
  at java.util.ArrayList.rangeCheck(ArrayList.java:652)
  at java.util.ArrayList.get(ArrayList.java:428)
  at com.ibm.ejs.j2c.HandleList.reAssociate(HandleList.java:266)
  at
  com.ibm.ejs.container.BeanO.reAssociateHandleList(BeanO.java:194
  

Problem conclusion

• Most applications will not encounter this exception.
  Additional synchronization was added to protect the array list
  in the handle list code.
  
  The fix for this APAR is targeted for inclusion in fix pack
  8.5.5.18 and 9.0.5.4.  For more information, see
  'Recommended Updates for WebSphere Application Server':
  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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP

• R900 PSY

     UP