RFR: 8282158: ECParameters InvalidParameterSpecException messages missed ECKeySizeParameterSpec

[John Jiang]

sun.security.util.ECParameters class supports three AlgorithmParameterSpec types, exactly ECParameterSpec, ECGenParameterSpec and ECKeySizeParameterSpec, however the InvalidParameterSpecException messages missed ECKeySizeParameterSpec.

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Commit messages:
 - 8282158: ECParameters InvalidParameterSpecException messages missed ECKeySizeParameterSpec

Changes: https://git.openjdk.java.net/jdk/pull/7550/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7550&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282158
  Stats: 6 lines in 1 file changed: 2 ins; 1 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7550.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7550/head:pull/7550

PR: https://git.openjdk.java.net/jdk/pull/7550