IJ52443: JAVA OUT OF MEMORY (HEAP SPACE) WITH BYTE TO CHAR ARRAY CONVERTER ON SEMERU JDK FOR Z/OS

APAR status

• Closed as program error.

Error description

• Error Message: Error Message: java.lang.OutOfMemoryError
  .
  Stack Trace: N/A
  .
  

Local fix

Problem summary

• Memory leak when using byte to char arrays converter with Semeru
  
  
  JDK on z/OS as the JNI references were not cleared leading to
  Heap OOM
  

Problem conclusion

• The fix introduced here ensures that all the JNI references are
  cleared after converting byte to char arrays.
  .
  This APAR will be fixed in the following Releases:
  .
  IBM Semeru Runtimes
   21              21.0.6.0
   17              17.0.13.0
   11              11.0.25.0
  .
  Downloads and supplementary documentation can be found at the
  following locations:
  - For non z/OS operating systems:
  - IBM Semeru Runtimes, Version 11 and later
    https://www.ibm.com/semeru-runtimes/downloads/
  - IBM SDK, Java Technology Edition, Version 8
    https://www.ibm.com/support/pages/java-sdk-downloads/
  - For the z/OS operating system:
  - Java SDK Products on z/OS
    https://www.ibm.com/support/pages/java-sdk-products-zos
  

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

  OPENJDK CLASS L

• Fixed component ID

  621800100

Applicable component levels