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
currentResource = (IResource) current.resources.get(0);
                    }
                }
                descriptorsSize = index + 1;
            }
        });
    }
    /**
     * Returns true if the label matches the chosen pattern.
     * 
     * @param label label to match with the current pattern
     * @return true if the label matches the chosen pattern. 
     * 	false otherwise.
     */
    private boolean match(String label) {
        if ((patternString == null)
                || (patternString.equals("")) || (patternString.equals("*")))
            return true;
        return stringMatcher.match(label);
    }
    /**
     * The user has selected a resource and the dialog is closing.
     * Set the selected resource as the dialog result.
     */
    protected void okPressed() {
        TableItem items[] = folderNames.getSelection();
        if (items.length == 1) {
            ArrayList result = new ArrayList();
            result.add(items[0].getData());
            setResult(result);