RFR: 8252377: Incorrect encoding for EC AlgorithmIdentifier [v2]

[Hai-May Chao]

> This change fixes the DER encoding for ECDSA AlgorithmIdentifier to omit the parameters field instead of encoding a
> Null tag.

Hai-May Chao has updated the pull request incrementally with one additional commit since the last revision:

  Updated test case to use DerUtils

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/312/files
  - new: https://git.openjdk.java.net/jdk/pull/312/files/f52268a7..edc71d03

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=312&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=312&range=00-01

  Stats: 189 lines in 1 file changed: 35 ins; 132 del; 22 mod
  Patch: https://git.openjdk.java.net/jdk/pull/312.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/312/head:pull/312

PR: https://git.openjdk.java.net/jdk/pull/312