I was getting some unit test failures when running in Maven, but not in Eclipse. I think the reasons are important for everyone to understand.
In Maven, test cases are not allowed to access test classes or resources from other projects. For example, classes in uimaj-cpe/src/test/java cannot refer to classes in uimaj-core/src/test/java, nor can they refer to resources in uimaj-core/src/test/resources. Eclipse does not enforce this restriction. In Eclipse, uimaj-cpe has a project dependency on uimaj-core, and so everything in uimaj-core is visible to everything in uimaj-cpe. Eclipse doesn't distinguish between code in src/main and code in src/test in the way that Maven does. Because of this differnce it is possible to create Unit tests that run in Eclipse but fail when run from the Maven command line. To guard against this, please always run the unit tests in Maven before committing changes. This is done by executing mvn install from the uimaj directory. This has been recorded at http://cwiki.apache.org/UIMA/differences-between-running-unit-tests-in-eclipse-and-in-maven.html so I can point people to it when they forget later. :-) -Adam
