[8u] RFR 8209113: Use WeakReference for lastFontStrike for created Fonts

[Zhengyu Gu]

Thanks, Paul.

Fixed indents:

http://cr.openjdk.java.net/~zgu/JDK-8209113-8u/webrev.01/

-Zhengyu


On 3/23/20 2:20 PM, Hohensee, Paul wrote:
> Lgtm, except there's an over-indentation issue in the 2nd hunk for Font2D.java.
> 
> Paul
> 
> On 3/20/20, 3:02 PM, "jdk8u-dev on behalf of Zhengyu Gu" <jdk8u-dev-bounces at openjdk.java.net on behalf of zgu at redhat.com> wrote:
>      
>      Hi,
>      
>      I would like to backport this change to JDK8u. This patch fixes a memory
>      leak that can be reproduced in 8u.
>      
>      The original patch does not apply cleanly. Other than location mismatch,
>      I changed
>      FontStrikeDisposer.strikeCache type in original patch
>      ConcurrentHashMap<FontStrikeDesc, Reference<FontStrike>> =>
>      ConcurrentHashMap<FontStrikeDesc, Reference>
>      to match Font2D.strikeCache
>      
>      Original bug: https://bugs.openjdk.java.net/browse/JDK-8209113
>      Original code review thread:
>      https://mail.openjdk.java.net/pipermail/2d-dev/2019-December/010470.html
>      
>      
>      8u Webrev:
>      http://cr.openjdk.java.net/~zgu/JDK-8209113-8u/webrev.00/index.html
>      
>      Test:
>         The testcase in bug.
>      
>      Thanks,
>      
>      -Zhengyu
>      
>      
>