String.contains was introduced in Java 5. Some code in java.base still uses old approach with `String.indexOf` to check if String contains specified substring. I propose to migrate such usages. Makes code shorter and easier to read.
------------- Commit messages: - [PATCH] Use String.contains() instead of String.indexOf() in java.base - [PATCH] Use String.contains() instead of String.indexOf() in java.base Changes: https://git.openjdk.java.net/jdk/pull/5559/files Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5559&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8274949 Stats: 40 lines in 17 files changed: 0 ins; 3 del; 37 mod Patch: https://git.openjdk.java.net/jdk/pull/5559.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/5559/head:pull/5559 PR: https://git.openjdk.java.net/jdk/pull/5559
