Hi Jiangli,
On 2019-04-01 17:21, Jiangli Zhou wrote:
On Mon, Apr 1, 2019 at 4:59 AM Claes Redestad <claes.redes...@oracle.com
<mailto:claes.redes...@oracle.com>> wrote:
Hi,
when a String has a calculated hash code value of 0, we recalculate and
store a 0 to the String.hash field every time (except for the empty
String, which is special cased). To make String objects more amenable to
storage in shared read-only memory, e.g., CDS archives, we should avoid
this redundant store.
That was exactly the reason why 0-hash string was excluded from the
closed archive heap region.
Thanks for confirming!
Bug: https://bugs.openjdk.java.net/browse/JDK-8221723
Webrev: http://cr.openjdk.java.net/~redestad/8221723/
Looks good to me.
Thanks!
/Claes
