PI69642: NullPointerException deleting stateful EJB

Fixes are available

APAR status

Closed as program error.

Error description

The following NullPointerException may occur when stateful
beans time out and are evicted from the EJB cache:

E   CWOWB2001E: A PRE_DESTROY lifecycle inteceptor threw an
exception: java.lang.NullPointerException
at
com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.invokeInter
cept
ors(EJBCDIInterceptorWrapper.java:131)
at
com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.preDestroy(
EJBC
DIInterceptorWrapper.java:82)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce
ssor
Impl.java:95)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe
thod
AccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at
com.ibm.ejs.container.interceptors.InterceptorProxy.invokeIn
terc
eptor(InterceptorProxy.java:201)
at
com.ibm.ejs.container.interceptors.InvocationContextImpl.pro
ceed
(InvocationContextImpl.java:632)
at
com.ibm.ejs.container.interceptors.InvocationContextImpl.doL
ifeC
ycle(InvocationContextImpl.java:336)
at
com.ibm.ejs.container.StatefulBeanO.destroy(StatefulBeanO.ja
va:5
05)
at
com.ibm.ejs.container.activator.StatefulSessionActivationStr
ateg
y.atDiscard(StatefulSessionActivationStrategy.java:657)
at
com.ibm.ejs.container.activator.Activator.discardObject(Acti
vato
r.java:528)
at
com.ibm.ejs.util.cache.Cache.evictObject(Cache.java:1123)
at
com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.sweep(B
ackg
roundLruEvictionStrategy.java:588)
at
com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.run(Bac
kgro
undLruEvictionStrategy.java:486)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server with EJB applications containing     *
*                  stateful beans                              *
****************************************************************
* PROBLEM DESCRIPTION: A NullPointerException may occur when   *
*                      stateful beans time out and are         *
*                      evicted from the EJB cache.             *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The following NullPointerException may occur when stateful
beans time out and are evicted from the EJB cache:
E   CWOWB2001E: A PRE_DESTROY lifecycle inteceptor threw an
exception: java.lang.NullPointerException
at
com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.invokeIntercept
ors(EJBCDIInterceptorWrapper.java:131)
at
com.ibm.ws.cdi.ejb.impl.EJBCDIInterceptorWrapper.preDestroy(EJBC
DIInterceptorWrapper.java:82)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
Impl.java:95)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
AccessorImpl.java:55)
at java.lang.reflect.Method.invoke(Method.java:508)
at
com.ibm.ejs.container.interceptors.InterceptorProxy.invokeInterc
eptor(InterceptorProxy.java:201)
at
com.ibm.ejs.container.interceptors.InvocationContextImpl.proceed
(InvocationContextImpl.java:632)
at
com.ibm.ejs.container.interceptors.InvocationContextImpl.doLifeC
ycle(InvocationContextImpl.java:336)
at
com.ibm.ejs.container.StatefulBeanO.destroy(StatefulBeanO.java:5
05)
at
com.ibm.ejs.container.activator.StatefulSessionActivationStrateg
y.atDiscard(StatefulSessionActivationStrategy.java:657)
at
com.ibm.ejs.container.activator.Activator.discardObject(Activato
r.java:528)
at
com.ibm.ejs.util.cache.Cache.evictObject(Cache.java:1123)
at
com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.sweep(Backg
roundLruEvictionStrategy.java:588)
at
com.ibm.ejs.util.cache.BackgroundLruEvictionStrategy.run(Backgro
undLruEvictionStrategy.java:486)

Problem conclusion

The EJB container has been updated to properly establish the
EJBContext on the thread prior to calling the stateful bean
pre-destroy lifecycle callback method. This change allows CDI
to properly access the EJBContext and avoids the
NullpointerException.

The fix for this APAR is currently targeted for inclusion in
fix pack 9.0.0.2 for WebSphere Application Server and 16.0.0.4
for WebSphere Application Server Liberty.  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 number
PI69642
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
900
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-09-23
Closed date
2016-10-06
Last modified date
2016-10-11

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
WEBSPHERE APP S
Fixed component ID
5724J0800

Applicable component levels

R900 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
04 May 2022

Tips

PI69642: NullPointerException deleting stateful EJB

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R900 PSY

Document Information

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