IJ43827: JAVA/IO/FILE.EXISTS() RETURNS FALSE FOR EXTERNAL LINKS ON Z/OS

APAR status

• Closed as program error.

Error description

• Error Message: The java/io/File.exists() API method wrongly
  returns false for existent external link files, on z/OS.
  .
  Stack Trace:
  .
  On z/OS, external links are defined as symbolic links to MVS
  datasets, that reside outside of the Unix filesystem.
  

Local fix

Problem summary

• On Unix systems, the java/io/File.exists() API method depends on
  the stat() system call, which fails for external link files on
  z/OS, which in turn causes the exists() method to return false.
  

Problem conclusion

• The implementation of java/io/File.exists() has been updated to
  handle external links on z/OS.
  .
  This APAR will be fixed in the following Releases:
  .
  IBM Semeru Runtime Certified Edition
     11              11.0.17.0
  .
  Contact your IBM Product's Service Team for these Service
  Refreshes and Fix Packs.
  For those running stand-alone, information about the available
  maintenance can be found at:
             https://www.ibm.com/support/pages/java-sdk
  

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