Usage of thread-safe collection `Vector` is unnecessary. It's recommended to use `ArrayList` if a thread-safe implementation is not needed. I checked only places where `Vector` was used as local variable.
------------- Commit messages: - [PATCH] Unnecessary Vector usage in java.base - [PATCH] Unnecessary Vector usage in JarIndex.read Changes: https://git.openjdk.java.net/jdk/pull/4482/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=4482&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8268873 Stats: 18 lines in 3 files changed: 1 ins; 4 del; 13 mod Patch: https://git.openjdk.java.net/jdk/pull/4482.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/4482/head:pull/4482 PR: https://git.openjdk.java.net/jdk/pull/4482