Replace if chain with switch can throw NPEs

### Apache NetBeans version

Apache NetBeans 24

### What happened

simplified snippet taken from [NB repo](https://github.com/apache/netbeans/blob/778fd731151fc431f02f2aa8cb5818cb718cb8ce/java/maven/src/org/netbeans/modules/maven/execute/CommandLineOutputHandler.java#L771-L785):

```java
private void checkProgress(ExecutionEventObject eeo) {
if (ExecutionEvent.Type.ProjectDiscoveryStarted.equals(eeo.type)) {
} else if (ExecutionEvent.Type.SessionStarted.equals(eeo.type)) {
} else if (ExecutionEvent.Type.ProjectStarted.equals(eeo.type)) {
}
}
```
run hint -> convert to switch statement

results:
```code
java.lang.NullPointerException: Cannot invoke "org.netbeans.spi.java.hints.HintContext.getInfo()" because "this.ctx" is null
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitPrimitiveWrapperMethods(NPECheck.java:1076)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMethodInvocation(NPECheck.java:1042)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitMethodInvocation(NPECheck.java:575)
at com.sun.tools.javac.tree.JCTree$JCMethodInvocation.accept(JCTree.java:1877)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
at org.netbeans.api.java.source.support.CancellableTreeScanner.scan(CancellableTreeScanner.java:69)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:677)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitBinary(NPECheck.java:898)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitBinary(NPECheck.java:575)
at com.sun.tools.javac.tree.JCTree$JCBinary.accept(JCTree.java:2231)
at com.sun.source.util.TreeScanner.scan(TreeScanner.java:91)
at org.netbeans.api.java.source.support.CancellableTreeScanner.scan(CancellableTreeScanner.java:69)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.scan(NPECheck.java:677)
at org.netbeans.modules.java.hints.bugs.NPECheck$VisitorImpl.visitNewClass(NPECheck.java:1008)
```

null seems to be a legal value for `ctx` - judging from the null checks in other places of the class.

### Language / Project Type / NetBeans Component

_No response_

### How to reproduce

see above

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

No / Don't know

### Operating System

linux

### JDK

23

### Apache NetBeans packaging

Apache NetBeans binary zip

### Anything else

_No response_

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

No - not right now

Start with the NPECheck visitor methods named in the stack trace, especially visitPrimitiveWrapperMethods and visitMethodInvocation, and reproduce the issue using the checkProgress snippet from CommandLineOutputHandler.java. Done means converting the if chain to a switch no longer causes a NullPointerException while the hint continues to report applicable issues.

Written by the indexing model from the issue text.