Bug 328599 [Wizards] cancelable parameter does not disable Wizard progress bar cancel button
Implementing a wizard using org.eclipse.jface.wizard.Wizard that calls getContainer.run() with false for the cancelable parameter does not disable the cancel button beside the progress bar.
bundles/org.eclipse.jface/src/org/eclipse/jface/wizard/ProgressMonitorPart.java
String text = taskLabel();
            fLabel.setText(text);
        } else {
			fLabel.setText(blockedStatus.getMessage());
		}
        
        fLabel.update();
    }
    /**
     * Return the label for showing tasks
     * @return String
     */
    private String taskLabel() {
    	boolean hasTask= fTaskName != null && fTaskName.length() > 0;
    	boolean hasSubtask= fSubTaskName != null && fSubTaskName.length() > 0;
    	
		if (hasTask) {
			if (hasSubtask)
				return escapeMetaCharacters(JFaceResources.format(
    					"Set_SubTask", new Object[] { fTaskName, fSubTaskName }));
   			return escapeMetaCharacters(fTaskName);
   			
    	} else if (hasSubtask) {
    		return escapeMetaCharacters(fSubTaskName);
    	
    	} else {
    		return ""; 
    	}
    }
    /**