Tiles uses a checkstyle configuration found at http://svn.apache.org/repos/asf/tiles/maven/trunk/build/tiles_checks_v5.xml

This is configured into the parent pom.xml so you can run `mvn checkstyle:checkstyle`.
The checkstyle report for the project can be found for each tiles project, eg
  http://tiles.apache.org/framework/checkstyle-aggregate.html
  http://tiles.apache.org/tiles-request/checkstyle-aggregate.html
  http://tiles.apache.org/tiles-autotag/checkstyle-aggregate.html

I presume Eclipse's editor can import a project's checkstyle configuration easily enough?