PH29291: NullPointerException might be thrown during ejb invocation on 19.0.0.9

APAR status

• Closed as program error.

Error description

• There is a potential that NullPointerException might be
  thrown while composing an audit data for ejb, when an
  application's enterprise bean does not implement hashCode
  method.
  Then this condition, the following is an example of the
  error which would be logged when this condition happened.
  CNTR0020E: EJB threw an unexpected (non-declared) exception
  during invocation of method "someMethod" on bean
  "BeanId(someweb#ejb.jar#SomeBean, null)". Exception data:
  java.lang.NullPointerException
  at some.application.bean.hashCode(someBean.java:100)
  at java.lang.Object.toString(Object.java:161)
  at java.lang.String.valueOf(String.java:3422)
  at java.lang.StringBuilder.append(StringBuilder.java:516)
  at
  java.util.AbstractCollection.toString(AbstractCollection.jav
  a:473)
  at java.lang.String.valueOf(String.java:3422)
  at java.lang.StringBuilder.append(StringBuilder.java:516)
  at
  java.util.AbstractCollection.toString(AbstractCollection.jav
  a:473)
  at
  com.ibm.ws.ejbcontainer.security.internal.EJBSecurityCollabo
  ratorImpl.populateAuditEJBHashMap(EJBSecurityCollaboratorImp
  l.java:413)
  at
  com.ibm.ws.ejbcontainer.security.internal.EJBSecurityCollabo
  ratorImpl.authorizeEJB(EJBSecurityCollaboratorImpl.java:440)
  at
  com.ibm.ws.ejbcontainer.security.internal.EJBSecurityCollabo
  ratorImpl.preInvoke(EJBSecurityCollaboratorImpl.java:194)
  at
  com.ibm.ws.ejbcontainer.security.internal.EJBSecurityCollabo
  ratorImpl.preInvoke(EJBSecurityCollaboratorImpl.java:69)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty with ejb feature enabled     *
  ****************************************************************
  * PROBLEM DESCRIPTION: NullPointerException might be thrown    *
  *                      during ejb invocation                   *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  There is a potential that NullPointerException might be thrown
  while composing an audit data for ejb, when an application's
  enterprise bean does not implement hashCode method.
  The following is an example of the error which would be logged
  when this condition happens.
  
  CNTR0020E: EJB threw an unexpected (non-declared) exception
  during invocation of method "someMethod" on bean
  "BeanId(someweb#ejb.jar#SomeBean, null)". Exception data:
  java.lang.NullPointerException
  at some.application.bean.hashCode(someBean.java:100)
  at java.lang.Object.toString(Object.java:161)
  at java.lang.String.valueOf(String.java:3422)
  at java.lang.StringBuilder.append(StringBuilder.java:516)
  at
  java.util.AbstractCollection.toString(AbstractCollection.java:47
  3)
  at java.lang.String.valueOf(String.java:3422)
  at java.lang.StringBuilder.append(StringBuilder.java:516)
  at
  java.util.AbstractCollection.toString(AbstractCollection.java:47
  3)
  at
  com.ibm.ws.ejbcontainer.security.internal.EJBSecurityCollaborato
  rImpl.populateAuditEJBHashMap(EJBSecurityCollaboratorImpl.java:4
  13)
  
  This issue started happening from 19.0.0.9
  

Problem conclusion

• With this fix, the NullPointerException is dismissed.
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 19.0.0.11.  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 is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WAS LIBERTY COR

• Fixed component ID

  5725L2900

Applicable component levels