<Swing Dev> RFR: 8273375: Remove redundant 'new String' calls after concatenation in java.desktop

Mon Sep 6 09:20:01 UTC 2021

Result of string concatenation is a newly created `String` object. There is no need it wrap it in another `new String` call.
Such calls are confusing and produce warnings in IDE. Without them code is easier to read.

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Commit messages:
 - [PATCH] Remove redundant 'new String' calls after concatenation in java.desktop

Changes: https://git.openjdk.java.net/jdk/pull/5356/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=5356&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8273375
  Stats: 91 lines in 15 files changed: 8 ins; 2 del; 81 mod
  Patch: https://git.openjdk.java.net/jdk/pull/5356.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/5356/head:pull/5356

PR: https://git.openjdk.java.net/jdk/pull/5356