NullPointerException: Cannot invoke "org.netbeans.api.debugger.jpda.JPDADebugger.removePropertyChangeListener(String, java.beans.PropertyChangeListener)" because "this.debugger" is null

### Apache NetBeans version

Apache NetBeans 27

### What happened

This is a transient issue in debugger tests:
```
java.lang.NullPointerException: Cannot invoke "org.netbeans.api.debugger.jpda.JPDADebugger.removePropertyChangeListener(String, java.beans.PropertyChangeListener)" because "this.debugger" is null
at org.netbeans.modules.debugger.jpda.console.DebuggerOutput.destroy(DebuggerOutput.java:113)
at org.netbeans.modules.debugger.jpda.console.DebuggerOutput.propertyChange(DebuggerOutput.java:274)
at java.desktop/java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:343)
at java.desktop/java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:336)
at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.firePropertyChange(JPDADebuggerImpl.java:2253)
at org.netbeans.modules.debugger.jpda.JPDADebuggerImpl.resume(JPDADebuggerImpl.java:1793)
at org.netbeans.modules.debugger.jpda.actions.ContinueActionProvider.doAction(ContinueActionProvider.java:58)
at org.netbeans.spi.debugger.ActionsProvider$ContextAware.doAction(ActionsProvider.java:234)
at org.netbeans.api.debugger.ActionsManager.doAction(ActionsManager.java:152)
at org.netbeans.api.debugger.jpda.JPDASupport.doContinue(JPDASupport.java:315)
at org.netbeans.api.debugger.jpda.CallStackTest.testInstanceCallStackInfo(CallStackTest.java:140)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at junit.framework.TestCase.runTest(TestCase.java:177)
at org.netbeans.junit.NbTestCase.access$200(NbTestCase.java:84)
at org.netbeans.junit.NbTestCase$2.doSomething(NbTestCase.java:489)
at org.netbeans.junit.NbTestCase$1Guard.run(NbTestCase.java:410)

```

### Language / Project Type / NetBeans Component

Java Debugger

### How to reproduce

Run JPDA tests.

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

No / Don't know

### Operating System

Any

### JDK

Any

### Apache NetBeans packaging

Other

### Anything else

_No response_

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

No