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I've provided my own breakpoint nodes and when I use the context menu I get the attached exception. (Note that this is with the jpda module turned off, which is different from earlier emails examples).
Created attachment 16570 [details] stack trace
Looks like you do not have NodeActionsProvider registerred for your node type. If you create a new node type (FunctionBreakpoint) you should register all type of models for it: TreeModel, NodeModel, NodeActionsProvider, TableModel
Correct, I had mis-registered my NodeActionsProvider. But I"m confused. Each model query is supposed to throw a UTE on objects it doesn't recognize. This shouldn't show up as user-visible exceptions, it should silently fail. No so? Also, you ~ said "new node type requires models". Did you really mean that? I typically associate the model set with views not with node types. Then each model query switches on the node type.
Verified ... and Closing all issues resolved into NetBeans 6.7 and earlier.