RFR (smallish?) 8061611: Remove deprecated command line flags
derek.white at oracle.com
Fri Dec 12 14:35:22 UTC 2014
This is a request for final re-review.
Updated for comments, and added regression test for arguments. This test
is a bit overkill for this bug, but it's extensible for other deprecated
and aliased options.
Re-merged with tree.
On 11/18/14 11:40 AM, Derek White wrote:
> Hi Team,
> First review request. Please let me know if I've forgotten something
> or have gone completely off the rails.
> The main point of this bug is to remove deprecated -XX options which
> are alias for other options.
> The only complicated part is that one case,
> /CMSParPromoteBlocksToClaim/ was not a true alias for /OldPLABSize/
> but a parallel option with different defaults that were synchronized
> in ergo processing. This fix removes the /CMSParPromoteBlocksToClaim
> /variable but preserves using different defaults in the CMS case.
> Also in this fix I added warning messages to several remaining
> undocumented command line options aliases. This should ease removal of
> these options in the future
> CMSMarkStackSize ==> MarkStackSize (MarkStackSize not documented either, but came in jdk6)
> G1MarkStackSize ==> MarkStackSize
> CMSMarkStackSizeMax ==> MarkStackSizeMax (MarkStackSizeMax not documented either)
> ParallelMarkingThreads => ConcGCThreads (ConcGCThreads came in jdk6)
> ParallelCMSThreads ==> ConcGCThread
> - Derek
> *Webrev*: http://cr.openjdk.java.net/~drwhite/8061611/webrev.00/
> *Bug*: https://bugs.openjdk.java.net/browse/JDK-8061611
> Saw 1-2 intermittent failures that went away on retesting - hangs
> and timeouts.
> no differences
> jtreg: Saw a few unexplained results. Not sure if typical or not:
> Execution failed: `main' threw exception:
> java.lang.Exception: jmap -heap exited with error code: 1
> * gc/metaspace/CompressedClassSpaceSizeInJmapHeap.java
> Checks that jmap -heap contains the flag CompressedClassSpaceSize
> interrupted! (timed out?)
> * closed/runtime/AppCDS/SharedArchiveConsistency.java
> Plus a bunch of tests that are labelled "ignored".
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