RFR and sponsor: 8248231: deserializeLambda created with wrong encoding if platform encoding not UTF-8

[Andrew Leonard]

Hi,
Please can I request a sponsor and review for the fix to bug JDK-8248231? 
(https://bugs.openjdk.java.net/browse/JDK-8248231)
webrev for review: http://cr.openjdk.java.net/~aleonard/8248231/webrev.00/

The problem with incorrect encoding of deserializeLambda was discovered by 
the openj9 VM team on a platform where the default encoding is not UTF-8 
(eg.EBCDIC platforms), which eluded to the problem that the 
deserializeLambda was not been encoded correctly when the lambda char did 
not map to an ASCII compatible range. The fix testcase replicates the 
problem by using a suitable UTF-8 char that does not map.

Many thanks
Andrew

Andrew Leonard
Java Runtimes Development
IBM Hursley
IBM United Kingdom Ltd
internet email: andrew_m_leonard at uk.ibm.com 

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