Add an .editorconfig to define indentation, trim trailing whitespace and open curly brace position for C++ and Java. This allows various editors to easily infer basics of the coding style.
------------- Commit messages: - add editorconfig for better indentation detection Changes: https://git.openjdk.org/jdk/pull/23693/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=23693&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8311227 Stats: 17 lines in 1 file changed: 17 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/23693.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/23693/head:pull/23693 PR: https://git.openjdk.org/jdk/pull/23693