PH49234: ATTACH FAILS ON Z/OS RUNNING JAVA 11 WHEN A STARTED TASK IS USED TO START A SERVER SPECIFYING THE LOCALCONNECTOR-1.0 FEATURE.

APAR status

• Closed as program error.

Error description

• A java.lang.reflect.InvocationTargetException caused by
  com.sun.tools.attach.AttachNotSupportedException FFDC occurs on
  started task is used to start a server specifying the localConne
  
  
  
  Exception = java.lang.reflect.InvocationTargetException
  
  Source = com.ibm.ws.jmx.connector.local.LocalConnectorActivator$
  
  probeid = 139
  
  Stack Dump = java.lang.reflect.InvocationTargetException
  
  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invok
  
  at
  java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(N
  62)
  
  ...
  
  Caused by: com.sun.tools.attach.AttachNotSupportedException: tar
  
  at
  com.ibm.tools.attach.attacher.OpenJ9VirtualMachine.attachTargetI
  :150)
  
  at
  com.ibm.tools.attach.attacher.OpenJ9VirtualMachine.lambda$attach
  .java:128)
  
  ...
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server for z/OS Liberty                     *
  ****************************************************************
  * PROBLEM DESCRIPTION: When running on z/OS with Java 11 a     *
  *                      AttachNotSupportedException occurs      *
  *                      when a started task is used to start    *
  *                      a server that specifies the             *
  *                      localConnector-1.0 feature.             *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When running on z/OS with Java 11 a
  java.lang.reflect.InvocationTargetException caused by
  com.sun.tools.attach.AttachNotSupportedException FFDC occurs
  when a started task is used to start a server specifying the
  localConnector-1.0 feature.
  Exception = java.lang.reflect.InvocationTargetException
  Source = com.ibm.ws.jmx.connector.
  local.LocalConnectorActivator$LocalConnectorHelper$1
  probeid = 139
  Stack Dump = java.lang.reflect.InvocationTargetException
  at
  java.base/jdk.internal.reflect.NativeMethodAccessorImpl.
  invoke0(Native Method)
  ...
  Caused by: com.sun.tools.attach.AttachNotSupportedException:
  target 67174842 not found
  at
  com.ibm.tools.attach.attacher.OpenJ9VirtualMachine.
  attachTargetImpl(OpenJ9VirtualMachine.java:150)
  ...
  

Problem conclusion

• Updated the launcher code to specify
  
  
  
  -Dcom.ibm.tools.attach.enable=yes
  
  
  
  The fix for this APAR is targeted for inclusion in fix pack
  
  22.0.0.10. For more information,
  
  see 'Recommended Updates for WebSphere Application Server':
  
  https://www.ibm.com/support/pages/node/715553
  

Temporary fix

• The exception can be avoided by adding
  
  
  
  -Dcom.ibm.tools.attach.enable=yes
  
  
  
  to the server's jvm.options file.
  

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