I've made the terrible mistake of telling Netbeans always to ignore compilation errors when running my Maven application.
Now that I want to revoke this, I can't seem to find an option anyway in the various configuration panels.
Does somebody know where this option can be changed?
Don't bother - found it after making a directory diff :
Stop Netbeans, remove the file underneath and start Netbeans again.
.netbeans/7.0/config/Preferences/org/netbeans/modules/java/source/BuildArtifactMapperImpl.properties
Simple, no ? :-)