RFR(S): 8225388: Running jcmd Compiler.CodeHeap_Analytics all 0 cause crash.

[Leonid Mesnik]

Hi

Could you please review following fix which verify parameter for 
Compiler.CodeHeap_Analytics command. So jcmd just exits instead of 
crashing target VM. Regression test was added, hs-tier1/2 passed.

webrev: http://cr.openjdk.java.net/~lmesnik/8225388/webrev.00/

bug: https://bugs.openjdk.java.net/browse/JDK-8225388

Leonid