Bug 1768756 - mozlint/license: enable it on .java r=linter-reviewers,marco DONTBUILD

Differential Revision: https://phabricator.services.mozilla.com/D146041

tools/lint/license.yml

@@ -71,6 +71,7 @@ license:
         - .ftl
         - .h
         - .html
+        - .java
         - .js
         - .jsm
         - .jsx

tools/lint/license/__init__.py

@@ -125,6 +125,7 @@ def fix_me(log, filename):
         ".m",
         ".mm",
         ".rs",
+        ".java",
         ".js",
         ".jsm",
         ".jsx",