IJ28981: COULD NOT START JAVA HEALTHCENTER AGENT AFTER SETTING IBM.SWAPLF SYSTEM PROPERTY

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: $ java -Dibm.swapLF=true -Xhealthcenter -version
  ......
  Caused by: java.lang.NullPointerException
          at
  java.security.SecureRandom.nextBytes(SecureRandom.java:471)
          at
  java.security.SecureRandom.next(SecureRandom.java:494)
          at java.util.Random.nextInt(Random.java:340)
          at java.rmi.server.UID.<init>(UID.java:123)
          at java.rmi.server.ObjID.<clinit>(ObjID.java:99)
          ... 5 more
  .
  

Local fix

Problem summary

• Java could not read properties file properly because misreading
  line separator character if ibm.swapLF system property is true
  on IBM1047 encoding.
  On zOS, 2 line break characters are used Line Feed (LF) (U+000A)
  and Next Line (NL/NEL) (U+0085).
  If the property file has multi line items, it read as single
  line by ibm.swapLF.
  In case of this issue, java could not read
  lib/security/java.security properly.
  

Problem conclusion

• NL character is treated as line break character by
  java.util.Properties class.
  .
  This APAR will be fixed in the following Java Releases:
     8    SR6 FP25  (8.0.6.25)
  .
  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

  JAVA CLASS LIBS

• Fixed component ID

  620700130

Applicable component levels

• R800 PSY

     UP