some problems with Groovy compiler use

I have some new problems with Groovy
- when something fails I do not have the slightest idea of what is compiled (see attached image: in that case this is a Big project -90 Maven Modules- and I have no idea of what is happening because there is no indication about the source which is compiled
(this is critical because I do not see any Groovy source with the missing class! is there a way to have the complete stacktrace?
-  a groovy source in a "test" directory does not see Java code in the same directory (I was obliged to add the test classes directory to the dependencies explicitly)

thanks for any hint