Hi,
support for IntelliJ projects (both langtools specific and JDK-wide) is
broken by a fix in the latest IntelliJ 2018.2, which prevents parsing of
ant files inside the .idea configuration folder.
The solution is to copy the ant file into some sub-folder of the build
folder (I've called it .idea-support for now), which fixes the issue.
I have more changes in the pipeline to improve the IntelliJ support,
including one which fixes the -o flag (e.g. JDK-8180794) - that's to say
that I know that this patch adds more assumptions on the location of the
build folder, but we have plans to remove such assumptions in due
course. In the short term, priority is to keep support working.
Webrev:
http://cr.openjdk.java.net/~mcimadamore/8208524/
Cheers
Maurizio