<p>I am working on a very large legacy code base. We are looking to introduce FindBugs into the development practice.</p>

<p>I intend to have FindBugs run whenever the code is built by eclipse.</p>

<p>I would like to be able to make the findbugs warnings appear as errors in the code much in this way you can change the severity level in eclipse </p>

<p>Is it possible for eclipse to report the warnings it produces as errors?</p>

<p>Thanks</p>

No, it isn't possible to have the FindBugs Eclipse plugin mark potential bugs as errors in the code.
I did some checking and the
FindBugs Maven plugin
doesn't provide an option to do this either (so no luck there too).
I would suggest logging an RFE (request for enhancement) to the FindBugs Eclipse plugin developers.  Their bug tracking database is available
here
.