Record Patterns and Pattern Switches in Eclipse 2023-09 (4.29)

I believe there is a problem with the switch statement when guarded patterns are used. For example,

public static void foo( Object obj ) {
  switch ( obj ) {
    case null -> System.out.println( "NULL" );
    case Integer x when x > 0 -> System.out.println( "Positive Integer: " + x );
    case Integer x when x < 0 -> System.out.println( "Negatve Integer: " + x );
    case Integer x -> System.out.println( "Integer: " + x );
    default -> System.out.println( "OTHER: " + obj );
  }
}

which I tested with

public static void main( String[] args ) {
  Stream.of( 0, 42, -42 ).forEach( n -> foo( n ) );
}

should produce

Integer: 0
Negatve Integer: -42
Positive Integer: 42

but my results are

Integer: 0
Positive Integer: 42
Integer: -42

I have confirmed that I get the correct results when using Oracle's compiler. 

NOTE, when I remove the null case the results are correct. 

I really *need* the String Template preview feature in Oracle's JDK-21 release but it is not supported in this plugin. So I can use this preview feature from the command line but not through Eclipse. <Sigh>