IV08169: SWITCH GBK CONVERTER TO UNICODE 2.0 OR UNICODE 3.0 ON DEMAND

APAR status

• Closed as program error.

Error description

• There is an incompatibility between Unicode 2.0 and Unicode 3.0
  for GBK converter. The GBK converter with Unicode 2.0 supports
  user defined area of characters where as GBK converter with
  Unicode 3.0 standard supports only standard defined characters
  and hence cannot recognises user defined area characters.
  
  The GBK converter in IBM JDK supports Unicode 3.0 standards.
  Hence, if IBM JDK is used to process data from databases (or
  other data sources) which store data in Unicode 2.0 standard
  (like Oracle DB), then IBM JDK cannot recognises charcters in
  user defined area.
  
  If GBK converter in IBM JDK is modified to support Unicode 2.0
  standards, it can regress the existing customers which expect
  the data in Unicode 3.0 standards. Hence IBM JDK had introduced
  a new code page MS936A through LIR 15065 which supports GBK with
  Unicode 2.0 standards. if customer use -Dfile.encoding=MS936A,
  it will use the GBK converter with Unicode 2.0 standards. This
  feature serves most of the customer requirement. However, if
  customer hard-code "GBK" as the encoding in their application,
  then IBM JDK continue to use the GBK converter which follow
  Unicode 3.0 standards.
  
  This requirement is raised to switch GBK converter to Unicode
  2.0 or Unicode 3.0 on Demand.
  

Local fix

• Avoid hard-coding "GBK" encoding in the application and use
  -Dfile.encoding=MS936A.
  

Problem summary

• The requirement is to build a switch, to allow IBM JDK support
  either Unicode 2.0 code table or Unicode 3.0 code table for
  converting from GBK encoding.
  
  By default, Unicode 3.0 standard is used by IBM JDK for GBK
  encoding. In order to get GBK encoding with Unicode 2.0
  standards, use the system property 'file.encoding=bestfit936'
  

Problem conclusion

• This feature is avilable in:
  5.0.0 SR14
  

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 5 CLASS LI

• Fixed component ID

  620500130

Applicable component levels

• R500 PSY

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