Checkstyle 6.15

[Roman Ivanov]

Checkstyle 6.15 - http://checkstyle.sourceforge.net/releasenotes.html#Release_6.15

New:

  new Check: RegexpOnFilename.

  SuppressionFilter: new option 'optional' to allow skip SuppressionFilter if config file does not exist.

  Add possibility to specify a unique ID to all Regexp checks.

Bug fixes:

  StringIndexOutOfBoundsException in Indentation check.

  AbstractJavadocCheck should process only doc comments placed before class, interface, constructor, method, or field declarations.

  SummaryJavadoc: false "end with a period" reports when inheritDoc is used .

  JavadocMethod: allowedAnnotations hides bad javadocs.

  FinalLocalVariable doesn't report variable when condition separates 2 assignments.

  Config of Google Style does not include InterfaceTypeParameterName check.

  Indentation on annotation parameters is wrong.

  OneStatementPerLine check and lambda expression.

  Gui should have a splitter bettween tree and code and prefered columns size.

  RequireThis reports false-positive when an instance method is overloaded with a static one.

Notes:

  Add checkstyle messages to xdocs.

  Setup 'Circle CI' to run checkstyle-tester project on JDK sources.

  Enforce Checks of sevntu.checkstyle (released version) over Checkstyle source code.

  Use Codeship CI for testing.

  Refactor gui package.

  doc: Add sbt-checkstyle-plugin to list of active tools.