I've noticed recently a problem with IDE_CONSOLE. It (or more particularly the IdeOnlyConsoleOutput class) is being ignored. If you do a Maven run from the command line, for a project that uses a normal on JB3.1/JUnit tool chain you can see it.
Put in a strategic throw, or loop/sys-out for the current threads stack trace, you don't have the prerequisite packages in the stack (I've checked), yet it still dump to console
Maybe there is a System.out somewhere that is ignore this configuration choice.