We're building a project with Hudson using Maven2. We're also using the Maven
Cobertura plugin to generate coverage reports. This means the tests will be
executed twice, once with instrumentation and once without.

Hudson is reporting the results from both runs although there is only a single
set of results in target/surefire-reports/*.xml. Hudson should only report a
single set of results, preferably those within target/surefire-reports.