Bug 73769 [Dialogs] Open Resource dialog has OK enabled when entry invalid
3.0.1 RC2 - Ctrl+Shift+R - type: WorkbenchWino (note the missing d) and hit Enter - the dialog is dismissed with no action Should disable OK if there is no match.
bundles/org.eclipse.ui.ide/extensions/org/eclipse/ui/dialogs/ResourceListSelectionDialog.java
});
            if (disposed[0]) {
                return;
            }
            if (!refilter) {
                for (int i = 0; i <= lastMatch; i++) {
                    if (i % 50 == 0) {
                        try {
                            Thread.sleep(10);
                        } catch (InterruptedException e) {
                            
                        }
                    }
                    if (stop || resourceNames.isDisposed()) {
                        disposed[0] = true;
                        return;
                    }
                    final int index = i;
                    display.syncExec(new Runnable() {
                        public void run() {
                            if (stop || resourceNames.isDisposed())
                                return;
                            updateItem(index, itemIndex[0], itemCount[0]);
                            itemIndex[0]++;
                        }
                    });
                }
            } else {
                
                for (int i = firstMatch; i <= lastMatch; i++) {