Can't create a WebService class via Assistant in a Gradle project

[andreasgottardi]

Apache NetBeans version

Apache NetBeans 14, 15

What happened

I have created a new Gradle web application. Then I have tried to create a new web service class. I tried to finalize the process. This ended in the following exception:

java.lang.NullPointerException: Cannot invoke "Object.getClass()" because "creator" is null
	at org.netbeans.modules.websvc.core.dev.wizard.NewWebServiceWizardIterator.instantiate(NewWebServiceWizardIterator.java:78)
	at org.openide.loaders.TemplateWizard.handleInstantiate(TemplateWizard.java:602)
	at org.openide.loaders.TemplateWizard.instantiateNewObjects(TemplateWizard.java:436)
	at org.openide.loaders.TemplateWizardIterImpl.instantiate(TemplateWizardIterImpl.java:223)
	at org.openide.loaders.TemplateWizardIteratorWrapper.instantiate(TemplateWizardIteratorWrapper.java:135)
	at org.openide.WizardDescriptor.callInstantiateOpen(WizardDescriptor.java:1605)
	at org.openide.WizardDescriptor.callInstantiate(WizardDescriptor.java:1546)
	at org.openide.WizardDescriptor.access$2300(WizardDescriptor.java:67)
[catch] at org.openide.WizardDescriptor$Listener$2$1.run(WizardDescriptor.java:2233)
	at org.openide.util.RequestProcessor$Task.run(RequestProcessor.java:1418)
	at org.netbeans.modules.openide.util.GlobalLookup.execute(GlobalLookup.java:45)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:278)
	at org.openide.util.RequestProcessor$Processor.run(RequestProcessor.java:2033)

which was shown in the "Notifications" panel.

How to reproduce

The steps to reproduce are shown in the "What happened" section. This happened since version 12 of Netbeans.

Did this work correctly in an earlier version?

No

Operating System

Windows 11 21H1 22000.739 Windows 10.0.19044

JDK

Azul Systems zulu18.30.11-ca-fx-jdk18.0.1 win_x64 Azul Systems Zulu18.32+11-CA (build 18.0.2+9) win_x64

Apache NetBeans packaging

Apache NetBeans binary zip

Anything else

No response

Are you willing to submit a pull request?

Yes

Code of Conduct

Yes