Freeze on "Saving Project data ..."

[PCore-D]

Apache NetBeans version

Apache NetBeans 27

What happened

Sometimes, after having modified a project from the dedicated screen and saved it, a small dialog appears with the words "Saving project data ..." which cannot be closed and the operation never ends.

Language / Project Type / NetBeans Component

Java with Ant > Java Web Application

How to reproduce

Open project properties, change a value (for example the binary format) and save

Did this work correctly in an earlier version?

Apache NetBeans 26

Operating System

debian 12

JDK

openjdk 17

Apache NetBeans packaging

Apache NetBeans binary zip

Anything else

No response

Are you willing to submit a pull request?

No

[mbien]

can't reproduce it with a fresh ant web application project. The window shows up for about 1s.

does this still happen when you disable "copy static resources on save" or "compile on save" in the project properties?

[matthiasblaesing]

We had multiple reports. A thread dump might be helpful to diagnose, so that we can see what locks here. I doubt, that we see a real freeze, just an application level deadlock.