I work on a project with a custom Checkstyle configuration, which is run both through an Ant build and via the Eclipse plugin. The following happens to me fairly frequently: Install new version of Eclipse plugin, just because it popped up in the list of plugin updates Eclipse plugin shows errors or Checkstyle violations of various sorts due to backward-incompatible changes to Checkstyle Figure out how to update our configuration/code to work with the new version of the Eclipse plugin and the existing...