`LinkedHashMap<IndexNode, IndexNode>` `ZipFileSystem.inodes` contains only non-null values. It means instead of separate `containsKey`+`get` calls, we can use single `LinkedHashMap.get` call and then compare result with `null`. Result code is a bit simpler and faster.
Testing: Linux x64 `java/nio`, `jdk/nio` ------------- Commit messages: - [PATCH] Avoid redundant LinkedHashMap.containsKey call ZipFileSystem.makeParentDirs Changes: https://git.openjdk.org/jdk/pull/13304/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13304&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8305696 Stats: 3 lines in 1 file changed: 0 ins; 0 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/13304.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/13304/head:pull/13304 PR: https://git.openjdk.org/jdk/pull/13304
