IZ56666: STACKOVERFLOW IN THREADLOCAL.GET()

APAR status

• Closed as program error.

Error description

• Error Message: Unable to login to Portal
  .
  Stack Trace: <OSB>7/9/09 23:19:54:385 EDT<CSB> 00000047 Servlet
       E com.ibm.wps.engine.Servlet handleException EJPEJ0070E: An
  exception occurr
  ed while processing the request. \
  com.ibm.wps.state.utils.exceptions.ObjectInstantiationException:
  EJPEI0046E: An exception occurred in the object pool \
  com.ibm.wps.state.services.StateManagerServiceObjectPool@44a444a
  4 during object instantiation. \
  at
  com.ibm.wps.util.pool.SimpleObjectPool.get(SimpleObjectPool.java
  :128) \
  at
  com.ibm.wps.util.pool.ObjectPoolWithHysteresis.get(ObjectPoolWit
  hHysteresis.java:132) \
  at
  com.ibm.wps.state.utils.synchronization.WeakThreadLocalCacheImpl
  $WeakThreadLocal.newObject(WeakThreadLocalCacheImpl.java:1
  86) \
  at
  com.ibm.wps.state.utils.synchronization.WeakThreadLocalCacheImpl
  $WeakThreadLocal.initialValue(WeakThreadLocalCacheImpl.jav
  a:175) \
  at
  com.ibm.wps.state.utils.synchronization.WeakThreadLocalCacheImpl
  $WeakThreadLocal.initialValue(WeakThreadLocalCacheImpl.jav
  a:148) \
  at java.lang.ThreadLocal.get(ThreadLocal.java:155) \
  at
  com.ibm.wps.state.utils.synchronization.WeakThreadLocalCacheImpl
  $WeakThreadLocal.set(WeakThreadLocalCacheImpl.java:224) \
  at
  com.ibm.wps.state.utils.synchronization.WeakThreadLocalCacheImpl
  $WeakThreadLocal.set(WeakThreadLocalCacheImpl.java:148) \
  at java.lang.ThreadLocal.get(ThreadLocal.java:156) \
   \
  ..... \
  ..... \
  .
  

Local fix

Problem summary

• ThreadLocal.get() calls the set() method to set its initial
  value.  If ThreadLocal is subclassed and set() overridden to
  call get() an infinite loop can be generated.
  

Problem conclusion

• This defect will be fixed in:
  5.0.0 SR11
  .
  ThreadLocal.get() has been modified so that it does not call
  set().
  .
  To obtain the fix:
  Install build 20090724 or later
  

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

  JAVA 5 CLASS LI

• Fixed component ID

  620500130

Applicable component levels

• R500 PSN

     UP