Recompile option disabled for java after updating
Answered
IntelliJ IDEA 2020.2 (Ultimate Edition)
Build #IU-202.6397.94, built on July 27, 2020
Licensed to NetScout Systems, Inc
Runtime version: 11.0.7+10-b944.20 amd64
VM: OpenJDK 64-Bit Server VM by JetBrains s.r.o.
Windows 10 10.0
GC: ParNew, ConcurrentMarkSweep
Memory: 3005M
Cores: 8
Non-Bundled Plugins: org.sonarlint.idea

Please sign in to leave a comment.
Does it become active after reloading the project from disk (https://i.imgur.com/o1E1nyS.png)?
Try also changing several symbols in the project. Does it help?
tried reload from disk but still same.
Is the problem reproducible on a newly created default project?
i have created new project with 1 module, and checked, it is still disabled.
Sorry, can't reproduce. May you perform basic troubleshooting steps (disable all 3rd party plugins and reset default configs under File | Manage IDE Settings | Restore Default Settings) and after that create a new YouTrack bug request (https://youtrack.jetbrains.com/issues/IDEA) with logs folder attached (https://intellij-support.jetbrains.com/hc/en-us/articles/207241085)?
This is also my issue with Tomcat running. We used to use Ctrl + Shift + F9 to recompile all changes and force hotswap to kick in but now recompile is greyed out. We had to enable class/resource reload on frame deactivation in Tomcat to use this but it is not an ideal solution.
Antonis Koursoumis May you report it to YouTrack please? See my previous comment.
In case anyone else comes here looking for the issue, see https://youtrack.jetbrains.com/issue/IDEA-247530.
The workaround seems to be to _enable_ the bundled Groovy plugin.
Thanks @... for workaround, After enabling Groovy plugin, i can see recompile options after right click on class.