within the installation readme, i've detected this comment:
redist/ Contains two libraries:
forms_rt.jar should be distributed with your applications that use GUI forms produced in IDEA;
javac2.jar is necessary for building applications with IDEA's GUI forms
which is the license of those 2 libraries?
are there any other libraries that are neccessary to run applications developed with IDEA?
All runtime libraries should be available with an OSI compliant license.
Does JetBrains IntelliJ IDEA fulfill this requirement?
If not, which are the limitations?