Summary

Remove the undocumented sun.nio.cs.map system property that overrides the default charset name/alias mapping.

Problem

The system property was provided for applications that would break with the fix to JDK-4712786. It was meant to be used for the time being while those applications migrate the definition of Shift_JIS from Windows code page 932 encoding to IANA defined Shift_JIS. The behavior has been partially broken since JDK 9 and should be removed rather than fixed.

Solution

Remove the system property from runtime.

Specification

N/A since the system property was never documented.