IV16261: ENABLING OPTION JAVA.SECURITY.DEBUG WITHIN WAS PUTS JVM INTO INF INITE LOOP

APAR status

• Closed as program error.

Error description

• Error Message: JVM execution is stalled when security debug
  option enabled within WAS
  .
  Stack Trace: at java/lang/Throwable.printStackTrace
  (Throwable.java:212)
   at java/lang/Throwable.printStackTrace (Throwable.java:163)
   at java/security/AccessController.checkPermission
  (AccessController.java:68)
   at java/lang/SecurityManager.checkPermission
  (SecurityManager.java:544)
   at java/lang/SecurityManager.checkRead
  (SecurityManager.java:883)
   at java/io/File.length (File.java:857)
   at TestSecurityDebug.print (TestSecurityDebug.java:69)
   at java/io/PrintStream.append (PrintStream.java:1039)
   at java/io/PrintStream.append (PrintStream.java:51)
   at java/lang/StackTraceElement.appendTo
  (StackTraceElement.java:180)
   at java/lang/Throwable.appendTo (Throwable.java:305)
   at java/lang/Throwable.printStackTrace (Throwable.java:325)
   at java/lang/Throwable.printStackTrace (Throwable.java:212)
   at java/lang/Throwable.printStackTrace (Throwable.java:163)
  .
  

Local fix

Problem summary

• The problem is caused by a recursive call to printStackTrace
  which is induced by the redirection of stderr stream and the
  enablement of security debug option
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR11
  6.0.1 SR2
  7.0.0 SR1
  .
  The JVM has been updated to detect the recursive call & stops
  the JVM execution
  

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

• R600 PSY

     UP

• R260 PSY

     UP