RFR: 8273098: Unnecessary Vector usage in java.naming

[Andrey Turbanov]

Usage of thread-safe collection Vector is unnecessary. It's recommended to use ArrayList/array if a thread-safe implementation is not needed. In post-BiasedLocking times, this is gets worse, as every access is synchronized.
I checked only places where Vector was used as local variable.

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Commit messages:
 - [PATCH] Unnecessary Vector usage in java.naming

Changes: https://git.openjdk.java.net/jdk/pull/5262/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5262&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273098
  Stats: 30 lines in 3 files changed: 1 ins; 2 del; 27 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5262.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5262/head:pull/5262

PR: https://git.openjdk.java.net/jdk/pull/5262