mbien opened a new issue, #6622:
URL: https://github.com/apache/netbeans/issues/6622
### Apache NetBeans version
Apache NetBeans 20 release candidate
### What happened
```
SEVERE [global]
java.lang.NullPointerException: Cannot invoke
"org.apache.maven.project.MavenProject.getGroupId()" because "prj" is null
at
org.netbeans.modules.maven.modelcache.MavenProjectCache.isFallbackproject(MavenProjectCache.java:475)
at
org.netbeans.modules.maven.api.NbMavenProject.isErrorPlaceholder(NbMavenProject.java:674)
at
org.netbeans.modules.maven.customizer.BasicInfoPanel.initValues(BasicInfoPanel.java:70)
at
org.netbeans.modules.maven.customizer.BasicInfoPanel.<init>(BasicInfoPanel.java:60)
at
org.netbeans.modules.maven.customizer.BasicPanelProvider.createComponent(BasicPanelProvider.java:50)
at
org.netbeans.spi.project.ui.support.ProjectCustomizer$DelegateCategoryProvider.create(ProjectCustomizer.java:604)
at
org.netbeans.modules.project.uiapi.CustomizerPane.setCategory(CustomizerPane.java:234)
at
org.netbeans.modules.project.uiapi.CustomizerPane.<init>(CustomizerPane.java:111)
at
org.netbeans.spi.project.ui.support.ProjectCustomizer.createCustomizerPane(ProjectCustomizer.java:253)
at
org.netbeans.spi.project.ui.support.ProjectCustomizer.createCustomizerDialog(ProjectCustomizer.java:155)
at
org.netbeans.spi.project.ui.support.ProjectCustomizer.createCustomizerDialog(ProjectCustomizer.java:239)
at
org.netbeans.modules.maven.customizer.CustomizerProviderImpl$1.run(CustomizerProviderImpl.java:158)
at
org.netbeans.modules.openide.util.NbMutexEventProvider$Event.doEvent(NbMutexEventProvider.java:97)
at
org.netbeans.modules.openide.util.NbMutexEventProvider$Event.readAccess(NbMutexEventProvider.java:72)
at
org.netbeans.modules.openide.util.LazyMutexImplementation.readAccess(LazyMutexImplementation.java:66)
at org.openide.util.Mutex.readAccess(Mutex.java:242)
at
org.netbeans.modules.maven.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:150)
at
org.netbeans.modules.maven.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:118)
at
org.netbeans.modules.maven.customizer.CustomizerProviderImpl.showCustomizer(CustomizerProviderImpl.java:113)
at
org.netbeans.modules.project.ui.actions.CustomizeProject$1$1.run(CustomizeProject.java:135)
at
java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at
java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:773)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:720)
at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:714)
at
java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
at
java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:742)
at
org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:136)
[catch] at
java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124)
at
java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109)
at
java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at
java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90)
```
### How to reproduce
- started NB 20 rc2,
- opened maven project
- right click -> properties
### Did this work correctly in an earlier version?
Apache NetBeans 19
### Operating System
linux
### JDK
JDK 21
### Apache NetBeans packaging
Apache NetBeans binary zip
### Anything else
_No response_
### Are you willing to submit a pull request?
No
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