Wizard for RESTful Web Service from Entity Class does not work

### Apache NetBeans version

Apache NetBeans 13

### What happened

The wizard for "Wizard for RESTful Web Service from Entity Class" does not recognize the projects entity classes. In Step 2 the warning message ''The project does not have a persistence provider on the classpath" is shown though there a JPA entities and a persistence unit present in the selected project.

### How to reproduce

_No response_

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

No

### Operating System

Windows 10 version 10.0 running on amd64; Cp1252; en_US (nb)

### JDK

Java: 17.0.3; OpenJDK 64-Bit Server VM 17.0.3+7

### Apache NetBeans packaging

Apache NetBeans provided installer

### Anything else

_No response_

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

No

### Code of Conduct

Yes

Start by reproducing the RESTful Web Service from Entity Class wizard in Apache NetBeans 13 with a project containing JPA entity classes and a persistence unit, focusing on Step 2. Done means the wizard recognizes the project's entity classes and no longer reports that a persistence provider is missing.

Written by the indexing model from the issue text.