IV91274: UNEXPECTED ILLEGALARGUMENTEXCEPTION REQUESTING A BUFFERPOOLMXBEAN BY NAME

APAR status

• Closed as program error.

Error description

• Error Message: java.nio:type=BufferPool,name=direct is not an
  instance of interface java.lang.management.BufferPoolMXBean
  .
  Stack Trace: java.lang.IllegalArgumentException:
  java.nio:type=BufferPool,name=direct is not an instance of
  interface java.lang.management.BufferPoolMXBean
  	at
  java.lang.management.ManagementFactory.verifyNamedMXBean(Managem
  entFactory.java)
  	at
  java.lang.management.ManagementFactory.newPlatformMXBeanProxy(Ma
  nagementFactory.java)
  .
  

Local fix

Problem summary

• ManagementFactory was not properly handling the fact there may
  be multiple instances of BufferPoolMXBean.
  

Problem conclusion

• The JVM has been updated to take into account that there may be
  multiple instances of BufferPoolMXBean.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR5       (8.0.5.0)
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  Service Refreshes and Fix Packs can be found at:
             https://www.ibm.com/developerworks/java/jdk/
  

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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R270 PSY

     UP