RFR (XS): JDK-8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.

[Albert Noll]

Hi,

please review the patch.

Many thanks in advance,
Albert

jbs: https://jbs.oracle.com/bugs/browse/JDK-8013496
webrev: http://cr.openjdk.java.net/~adlertz/JDK-8013496/webrev00/

Problem:
The order in which the arguments  "-XX:ReservedCodeCacheSize=1m" and  
"-XX:InitialCodeCacheSize=500k"
are given to hotspot mattered. In particular, the above order resulted 
in an error:

Invalid maximum code cache size: -XX:ReservedCodeCacheSize=1m. Should be 
greater than InitialCodeCacheSize=2496K
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.

Fix: Moved the check: ReservedCodeCacheSize >= InitialCodeCacheSize to 
Arguments::check_vm_args_consistency()
(as suggested in the comment).

Currently, the minimum ReservedCodeCacheSize is 1K. Any thoughts on that?