For a `String` āsā, `s.indexOf(int)` can never return a value `>= s.length()` so change the check
int pos = syntaxAndInput.indexOf(':'); if (pos <= 0 || pos == syntaxAndInput.length()) to if (pos <= 0) ------------- Commit messages: - 8290047: (fs) FileSystem.getPathMatcher needlessly checks syntaxAndInput.length Changes: https://git.openjdk.org/jdk/pull/9595/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=9595&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8290047 Stats: 5 lines in 4 files changed: 0 ins; 0 del; 5 mod Patch: https://git.openjdk.org/jdk/pull/9595.diff Fetch: git fetch https://git.openjdk.org/jdk pull/9595/head:pull/9595 PR: https://git.openjdk.org/jdk/pull/9595