Gradle Appearance option re-use output windows is not working as expected

### Apache NetBeans version

Apache NetBeans 24

### What happened

When Settings -> Java -> Gradle -> Ouput -> Reuse Output Tabs is selected. The output windows are not _re-used. (this option is working properly for maven projects.)

### Language / Project Type / NetBeans Component

_No response_

### How to reproduce

1. Go to Settings -> Java -> Gradle -> Ouput -> tick Reuse Output Tabs.
2. Create or open a gradle project.
3. Click build ,and wait until it is finished. (right-click project and use build option )
4. Click build again. (right-click project or trigger build on output window)

### Did this work correctly in an earlier version?

No / Don't know

### Operating System

MacOS

### JDK

21

### Apache NetBeans packaging

Apache NetBeans binary zip

### Anything else

_No response_

### Are you willing to submit a pull request?

No

Start by reproducing the issue through Settings → Java → Gradle → Output with Reuse Output Tabs enabled, then run two builds of the same Gradle project. Compare this behavior with Maven output reuse and identify the Gradle output-window entry point involved. Done means consecutive Gradle builds reuse the existing output tab.

Written by the indexing model from the issue text.