code: function echoWarningsAndErrors(antWarnings, antErrors){
  	
  	//Define the echo task to use for warnings and errors
  	var echo = project.createTask("echo");
  	var error = new org.apache.tools.ant.taskdefs.Echo.EchoLevel();
  	error.setValue("error");
  	echo.setLevel(error);
  
  	//Display all the detected warnings
  	for(var i = 0; i < antWarnings.length; i++){
  
  		echo.setMessage("WARNING: " + antWarnings[i]);
  		echo.perform();
  	}
  
  	//Display all the detected errors
  	for(i = 0; i < antErrors.length; i++){
  
  		echo.setMessage("ERROR: " + antErrors[i]);
  		echo.perform();
  	}
  
  	//Set a failure to the ant build if errors are present
  	if(antErrors.length > 0){
  
  		project.setProperty("javascript.fail.message", "Source analisis detected errors.");
  	}
  }
docs: Output to ant console the warnings and errors if exist