I pasted the HTTPBuilder example from http://groovy.codehaus.org/HTTP+Builder and the editor highlights the "import static groovyx.net.http.ContentType.*" with "Groovy:unable to resolve class groovyx.net.http.ContentType" and the "new HTTPBuilder" with a similar error.

I can run the script from STS with no problems (except for some log4j errors which I think are not related).

I'm running STS 2.6.1. Should I file a bug report?