[OpenJDK 2D-Dev] RFR: 6206189: Graphics2D.clip specifies incorrectly that a 'null' is a valid value for this method [v5]

[Prasanta Sadhukhan]

> The API doc for Graphics2D.clip(shape s) claims that passing a null argument would actually clear the existing clipping area, which is incorrect.
> This statement is applicable only to G2D.setClip() and not for the clip() method. G2D.clip() would throw a NullPointerException when it encounters a null argument. 
> Updated spec to rectify this.

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

  Review comment fix. Test updated

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/2476/files
  - new: https://git.openjdk.java.net/jdk/pull/2476/files/e4053de8..51fbe247

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=2476&range=04
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=2476&range=03-04

  Stats: 5 lines in 3 files changed: 2 ins; 1 del; 2 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2476.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2476/head:pull/2476

PR: https://git.openjdk.java.net/jdk/pull/2476