code: public Object evaluateString(String scriptName, String source, Bindings bindings) {
  		try {
  			scriptEngine.put(ScriptEngine.FILENAME, scriptName);
  			return scriptEngine.eval(source, bindings);
  		} catch (ScriptException e) {
  			throw new BundlingProcessException("Error while evaluating script : " + scriptName, e);
  		}
  	}
docs: Evaluates the JS passed in parameter
  
  @param scriptName
  the script name
  @param source
  the JS script
  @param bindings
  the bindings to use
  
  @return the result