The errors parameter cannot be null from HintsController.setErrors in MavenSelectionHintsTask

[jglick]

Apache NetBeans version

Apache NetBeans 16 release candidate

What happened

Had a Maven POM open, and on a transitive dep in the project tree selected option to declare as an explicit dep. Got a stack trace

java.lang.NullPointerException: The errors parameter cannot be null
	at org.openide.util.Parameters.notNull(Parameters.java:64)
	at org.netbeans.spi.editor.hints.HintsController.setErrors(HintsController.java:75)
	at org.netbeans.modules.maven.hints.pom.MavenSelectionHintsTask.run(MavenSelectionHintsTask.java:69)
	at org.netbeans.modules.maven.hints.pom.MavenSelectionHintsTask.run(MavenSelectionHintsTask.java:52)
	at org.netbeans.modules.parsing.impl.TaskProcessor.callParserResultTask(TaskProcessor.java:561)
[catch] at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.run(TaskProcessor.java:786)
	at org.openide.util.lookup.Lookups.executeWith(Lookups.java:279)
	at org.netbeans.modules.parsing.impl.TaskProcessor$RequestPerformer.execute(TaskProcessor.java:702)
	at org.netbeans.modules.parsing.impl.TaskProcessor$CompilationJob.run(TaskProcessor.java:663)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
	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)

Tried a few times, getting the same error each time.

How to reproduce

Unknown whether this is reproducible from scratch.

Did this work correctly in an earlier version?

No / Don't know

Operating System

Xubuntu 22.04.1

JDK

17.0.5

Apache NetBeans packaging

Apache NetBeans Snap Package

Anything else

Running 16-rc4.

Are you willing to submit a pull request?

Yes

Code of Conduct

Yes