We are happy to announce the release of the new Oracle JDeveloper and Oracle ADF 12.2.1.3 - as part of the larger Oracle Fusion Middleware 12.2.1.3 release.
For us this release focused on stability and improving the product through extensive bug fixes. You can see a list of the bugs fixed in this release in our release notes - note that this list includes only bugs reported by customers, there are other bugs that we fixed that were reported by internal Oracle teams.
If you are on an older version of JDev/ADF (before 12.2.1.*) and wondering what new features are available in this branch you should look at these documents - new in 12.2.1.1, new in 12.2.1.0.
Let us know how the new version works for you on the JDev/ADF community page.
This bug still exists in JDEV 12.2.1.3.
Opening a large project in JDEV on a Windows 10 VM with 8GB of memory causes JDEV to hang("compiling transient expression").
If this is not the behavior you see please contact Oracle Support.
Please solve these difficulties and take care of problems in new versions
In general this is a windows issue - you can move your JDev and JDK installation into top level directories such as c:jdk8