Hi,
Please review the code changes for https://bugs.openjdk.java.net/browse/JDK-8150900. Webrev Link: http://cr.openjdk.java.net/~csahu/8150900/webrev.00/ Enhancement Brief: A new variant of flag "diagnostic_pd" is implemented. All flags which are diagnostic in nature and platform dependent can be placed under this variant. These flags can be enable using "-XX:+UnlockDiagnosticVMOptions". At present I have placed 4 flags under "diagnostic_pd" 1. 1. InitArrayShortSize 2. 2. ImplicitNullChecks 3. 3. InlineFrequencyCount 4. 4. PostLoopMultiversioning Regards, Cheleswer