This is a typing error introduced in issue #104281.
It's important to fix it before the release. It has no sense for the implementors of ExtendedNodeModelFilter to also
implement NodeModel, but for correct functionality, NodeModelFilter needs to be implemented.

This is, strictly speaking, an incompatible API change, but any implementation of ExtendedNodeModelFilter had to
implement also NodeModelFilter, otherwise it would not function correctly anyway. With that in account, this is not
really an incompatible change.

Diff:

Index: src/org/netbeans/spi/viewmodel/ExtendedNodeModelFilter.java
===================================================================
RCS file: /shared/data/ccvs/repository/debuggercore/viewmodel/src/org/netbeans/spi/viewmodel/ExtendedNodeModelFilter.java,v
retrieving revision 1.1
diff -u -r1.1 ExtendedNodeModelFilter.java
--- src/org/netbeans/spi/viewmodel/ExtendedNodeModelFilter.java 6 Jun 2007 20:31:07 -0000       1.1
+++ src/org/netbeans/spi/viewmodel/ExtendedNodeModelFilter.java 27 Jun 2007 15:08:41 -0000
@@ -31,7 +31,7 @@
  * @author   Martin Entlicher
  * @since 1.12
  */
-public interface ExtendedNodeModelFilter extends NodeModel {
+public interface ExtendedNodeModelFilter extends NodeModelFilter {
     
     /**
      * Test whether this node permits renaming.