[9] RFR(S): 8022968: Some codecache allocation failures don't result in invoking the sweeper

[Tobias Hartmann]

Hi,

please review the following patch for JDK-8022968.

Bug: https://bugs.openjdk.java.net/browse/JDK-8022968
Webrev: http://cr.openjdk.java.net/~thartmann/8022968/webrev.00/

*Problem*
Some code cache allocation failures are not handled appropriately by 
either calling CompileBroker::handle_full_code_cache() to stop 
compilation and invoke the sweeper or terminating the VM. An allocation 
failure in AbstractICache::initialize(..) would even lead to a 
segmentation fault in the CodeBuffer constructor.

*Solution*
Add calls to CompileBroker::handle_full_code_cache() or fail gracefully 
where necessary.

*Testing*
JPRT

Thanks,
Tobias
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