After upgrading to Hudson 1.179 (from 1.174) all my builds are failing because
of a ClassCastException. See the end of the console log:

BUILD SUCCESSFUL
Total time: 1 minute 23 seconds
Publishing Javadoc
Collecting findbugs analysis files...
FATAL: java.lang.Object cannot be cast to hudson.plugins.findbugs.FindBugsResult
java.lang.ClassCastException: java.lang.Object cannot be cast to
hudson.plugins.findbugs.FindBugsResult
at hudson.plugins.findbugs.FindBugsPublisher.perform(FindBugsPublisher.java:101)
at
hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:273)
at
hudson.model.AbstractBuild$AbstractRunner.performAllBuildStep(AbstractBuild.java:261)
at hudson.model.Build$RunnerImpl.post2(Build.java:136)
at hudson.model.AbstractBuild$AbstractRunner.post(AbstractBuild.java:246)
at hudson.model.Run.run(Run.java:677)
at hudson.model.Build.run(Build.java:101)
at hudson.model.ResourceController.execute(ResourceController.java:70)
at hudson.model.Executor.run(Executor.java:65)