[OpenJDK 2D-Dev] RFR: JDK-8263362: Avoid division by 0 in java/awt/font/TextJustifier.java justify [v2]

[Matthias Baesken]

> In java/awt/font/TextJustifier.java justify-method there is a potential code path where divison by zero might happen , see also the Sonar finding 
> https://sonarcloud.io/project/issues?id=shipilev_jdk&open=AXcqMwpm8sPJZZzONu1k&resolved=false&severities=CRITICAL&types=BUG
> 
> 
>             boolean hitLimit = (weight == 0) || (!lastPass && ((delta < 0) == (delta < gslimit)));
>             boolean absorbing = hitLimit && absorbweight > 0;
>             // predivide delta by weight
>             float weightedDelta = delta / weight; // not used if weight == 0
> 
> In case of (weight == 0) the division should not be done because the value of weightedDelta is unused in this case anyway.

Matthias Baesken has updated the pull request incrementally with one additional commit since the last revision:

  adjust absorbweight check

-------------

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2912/files
  - new: https://git.openjdk.java.net/jdk/pull/2912/files/6b31126f..4e21791e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2912&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2912&range=00-01

  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2912.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2912/head:pull/2912

PR: https://git.openjdk.java.net/jdk/pull/2912