Checkstyle Eclipse plugin doesn't work

I'm using eclipse checkstyle plugin with Juno Eclipse distribution. Anytime the code is checked for checkstyle error I get the following error:

cannot initialize module TreeWalker - Unable to instantiate DoubleCheckedLocking

Does anybody know how to fix this problem? Is it a plugin compatibility issue or something else?

Solution 1:

The DoubleCheckedLocking check has been removed in Checkstyle 5.6 and must be manually removed from your Checkstyle configuration.

See also: http://sourceforge.net/tracker/index.php?func=detail&aid=3571442&group_id=29721&atid=397078

Solution 2:

Open the Checkstyle preferences, create your own Check Configuration, go into your own check configuration, find the TreeWalker module, click it and then un-check the DoubleCheckedLocking. As simple as that.

Solution 3:

just comment or remove "DoubleCheckedLocking" from the checkstyle file and it will work