I had an 'interesting' problem with Maven and Windows today where the build was broken on a Windows machine but worked on Linux. All we were getting were weird cryptic errors that a class in the test directory could not resolve a class from the src directory. The build worked fine in the ide on windows just not when run on the command line.
Turns out the issue was that we had a lower case name for the package in src/main/resources but an upper case name in src/main/java. During the build the resources are copied over first this means that the directory was created as lower case. Then when the source was compiled it placed the class files in the lower case directory as Windows paths are not case sensitive.
For example we had src/main/java/FOO and src/main/resources/foo when this is built with maven you will get your class files compiled into the package 'foo' even though anything that imports this class will be looking for 'FOO'.
Hopefully this helps someone else so they don't spend a day pulling out their hair over this!
