IV32381: JAVA.NIO.CHARSET.CHARSETENCODER IS NOT THROWING AN EXCEPTION BY DEFAULT FOR UNMAPPABLE CHARACTERS

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  Instead of throwing an exception,
  java.nio.charset.CharsetEncoder
  replace the un-mappable characters with \uFFFD
  

Local fix

Problem summary

• According to the java.nio.charset.CharsetEncoder
  API specification,the default
  JVM action for an unmappable character is to report the coding
  error. As per the current behavior of JDK,the exception is not
  thrown by default for unmappable characters or even if the
  behavior of CharsetEncoder is defined to report
  error by setting CodingErrorAction.REPORT, the problem has
  happened because by default JVM always replaces unmappable
  character with substitute character.
  

Problem conclusion

• This defect will be fixed in:
  7.0.0 SR4
  6.0.0 SR13 -  fixed through APAR IV28953
  6.0.1 SR5  -  fixed through APAR IV28953
  .
  JDK has been updated to make the java.nio.charset.CharsetEncoder
  to throw an exception by default for unmappable characters.
  

Temporary fix

Comments

• This issue is fixed in Java 6 SR13 and  Java 626 SR5 through
  APAR IV28953 fix.
  

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

• R700 PSY

     UP

• R600 PSY

     UP