IT14211: JRE HAS HARDLINK TO LIBJVM.SO ON 7.0.0.8 ON AIX

APAR status

• Closed as program error.

Error description

• On AIX at 7.0.0.8 the shipped JRE package includes hard links
  between the libjvm.a and libjvm.so files. This can cause
  unexpected results, including crashes, when custom java code is
  called which makes native calls, or when running custom C plugin
  nodes that make JNI calls.
  
  This problem is known to affect the WTX Node.
  

Local fix

• To resolve follow these steps:
  .
  1.) cd $MQSI_FILEPATH/jre16/lib/ppc64/classic
  2.) mv libjvm.a libjvm_a_backup
  3.) ln -s libjvm.so libjvm.a
  4.) cd $MQSI_FILEPATH/jre16/lib/ppc64/j9vm
  5.) mv libjvm.a libjvm_a_backup
  6.)  ln -s libjvm.so libjvm.a
  

Problem summary

• ****************************************************************
  USERS AFFECTED:
  All users of IBM Integration Bus and WebSphere Message Broker
  running on AIX.
  
  
  Platforms affected:
  AIX
  
  ****************************************************************
  PROBLEM DESCRIPTION:
  On AIX the JRE package initially includes hard links between the
  libjvm.a and libjvm.so files. This can cause unexpected results,
  including crashes, when custom java code is called which makes
  native calls or when running custom C plugin nodes that make JNI
  calls.
  
  This is known to affect the WTX Node.
  
  Some updates to the JRE on AIX may also be affected including
  interim security updates.
  
  There are a number of resource name changes between WebSphere
  Message Broker and IBM Integration Bus Version 9.0.  For details
  visit
  http://pic.dhe.ibm.com/infocenter/wmbhelp/v9r0m0/topic/com.ibm.e
  tools.mft.doc/bb23814_.htm
  

Problem conclusion

• The build automation has been updated so that JRE supplied with
  hard links are replaced with soft links prior to shipping the
  updated JRE in a product release or fix pack.
  
  ---------------------------------------------------------------
  The fix is targeted for delivery in the following PTFs:
  
  Version    Maintenance Level
  v10.0      10.0.0.7
  v8.0       8.0.0.9
  v9.0       9.0.0.7
  
  The latest available maintenance can be obtained from:
  http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041
  
  If the maintenance level is not yet available,information on
  its planned availability can be found on:
  http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
  ---------------------------------------------------------------
  

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

  WEB MESSAGE BRO

• Fixed component ID

  5724J0510

Applicable component levels