[FIXED] NetBeans 12.3 - Code completion and code suggestion very slow

Issue

All of a sudden the code completion and suggestion (for example when typing the . operator listing the possible methods on an object, etc.) is very slow, also fixing imports. Restarting the IDE didn't solve it.

I cannot see any other task NetBeans is running. What can be the cause? Is it because the update to 12.4 is coming up and NetBeans gathers some data or metrics :)

Otherwise the IDE is working normal, quick as usual.

Solution

1. Check if the performance is same when you deactivate your antivirus
2. Check in the About window of NetBeans where your cache directory is located and rename/delete it
3. You can try it with most recent release 12.4. It's not yet published on their website but you can download it anyway: https://www.apache.org/dyn/closer.cgi/netbeans/netbeans/12.4/netbeans-12.4-bin.zip

Answered By - asbachb