RFR: 4797982: Setting negative size of JSplitPane divider leads to unexpected results. [v3]

[Prasanta Sadhukhan]

> Setting JSplitPane divider size to negative value leads to unexpected results and is not desirable and seems to be not practical.
> I guess we should return IAE but it might break existing app so fixed to clamp it to 0 incase negative value is tried to be set for divider size.

Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:

  Clarify behavior in javadoc

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Changes:
  - all: https://git.openjdk.org/jdk/pull/9566/files
  - new: https://git.openjdk.org/jdk/pull/9566/files/758dfb8a..a5a9ec88

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=9566&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=9566&range=01-02

  Stats: 7 lines in 2 files changed: 6 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/9566.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/9566/head:pull/9566

PR: https://git.openjdk.org/jdk/pull/9566