7173918 : Set jdk.map.althashing.threshold default to 512

[Edvard Wendelin]

Hi,

Approved, if this fix is only targeted to 7u6 and not applicable to 8. 

On Jun 7, 2012, at 2:35 AM, Mike Duigou wrote:

> Hi,
> 
> This is a request to include a bug fix into JDK 7u6:
> 7173918 : Set jdk.map.althashing.threshold default to 512
> 
> This is a related patch to the larger alternative string hashing changes (CR#7126277) from last week. As documented in the review request, for CR#7126277 the default threshold for the alternative hashing in that patch was set to the minimum to unconditionally enable the feature. This was done to make compatibility testing easier. Developers are strongly encouraged to test their applications with the 7u6b13 build to ensure that their applications do not later encounter problems. For the release version of 7u6 the default threshold will be set to 512. 
> 
> This patch sets that default and marks one field final.
> 
> http://cr.openjdk.java.net/~mduigou/7173918/0/webrev/
> 
> The fix has been reviewed on the corelibs list. When approved I will push to:
> ssh://hg.openjdk.java.net/jdk7u/jdk7u-dev-gate/jdk
> 
> Thanks!
> 
> Mike