PM19836: JAVA CLASSPATH WILDCARD (*) EXPANSION PROBLEMS ON Z/OS

APAR status

• Closed as program error.

Error description

• Classpath splat (*) expansion is limited to 6125 characters.
  
  KEYWORDS
  java.class.path
  asterisk
  

Local fix

• N/A
  

Problem summary

• In JDK on zOS platform, sprintf() is redefined to
  atoe_sprintf() to do the ASCII to EBCDIC conversion. The
  atoe_sprintf() uses a 6144 size fixed work buffer and as a
  result the class path is truncated after 6125 characters.
  

Problem conclusion

• This defect will be fixed in:
  6.0.0 SR9 FP2
  .
  Modified the JVM to dynamically allocate the work buffer when
  the class path is greater than 6125 characters.
  

Temporary fix

• Work around:
  
  If ClassNotFoundException is thrown from the application due to
  truncated class path, keep the corresponding jars in the
  beginning of the class path.
  
  Caution: This work around does not eliminate the problem
  completely as some other classes can go out of class path scope
  while redefining the class path.
  

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 6 Z/OS 31

• Fixed component ID

  620700105

Applicable component levels

• R600 PSY

     UP