IV52888: THE DEFAULT SIZE OF RAW CLASS DATA AREA IS INCORRECTLY CALCULATE D FOR LARGE CACHE SIZES

APAR status

• Closed as program error.

Error description

• Error Message: N/A
  .
  Stack Trace: N/A
  .
  The default size of raw class data area of the shared class
  cache is incorrectly calculated and ends up being too small for
  a large cache.
  

Local fix

• Use the -Xshareclasses:rcdSize=<size> Java command line option
  to force the raw class data size to a particular value.
  

Problem summary

• The raw class data area size is incorrectly calculated for large
  cache sizes.
  For example, with -Xscmx90M the size is calculated as 42,299,392
  but for -Xscmx120M its calculated as the smaller value
  13,508,608.
  A cache size larger than 90 MB will not be calculated correctly.
  

Problem conclusion

• This APAR will be fixed in the following Java Releases:
     7    SR7       (7.0.7.0)
     6 R1 SR8       (6.1.8.0)
  .
  The JVM has been updated to perform the size calculation
  correctly.
  

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

  J9 COMMON CODE

• Fixed component ID

  620700127

Applicable component levels

• R260 PSY

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