[OpenJDK 2D-Dev] RFR: 6606673: Path2D.Double, Path2D.Float and GeneralPath ctors throw exception when initialCapacity is negative

[Sergey Bylokhov]

The specification for Path2D.Double, Path2D.Float and GeneralPath constructors is updated. NegativeArraySizeException, IllegalArgumentException and NullPointerException are added.

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Commit messages:
 - Initial fix

Changes: https://git.openjdk.java.net/jdk/pull/2174/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=2174&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-6606673
  Stats: 218 lines in 4 files changed: 218 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/2174.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/2174/head:pull/2174

PR: https://git.openjdk.java.net/jdk/pull/2174