RFR: 8025692: Add trace to find out what methods are used at runtime.

Yumin Qi yumin.qi at oracle.com
Fri Mar 27 02:34:51 UTC 2015

Please review:

bug: https://bugs.openjdk.java.net/browse/JDK-8025692
webrev: http://cr.openjdk.java.net/~minqi/8025692/webrev01/

Summary: Add two flags to help list all java methods called in runtime, 
this is also in product and can help CDS to rearrange methods in shared 
archive to avoid loading infrequent methods into memory.

Tests: vm.runtime.quick.testlist, JPRT


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