code: public void executeBeforeClass(@Observes BeforeClass event, TestClass testClass){
  		testClass = event.getTestClass();
  		Field[] fields = testClass.getJavaClass().getDeclaredFields();
  		for (Field field : fields) {
  			if (field.isAnnotationPresent(GetDeployableContainer.class)){
  				if (field.getType().isAssignableFrom(ContainerManagerTool.class)){
  					isGetDeployableContainerAnnoPresent = true;
  					deployableContainerFields.add(field);
  				}
  			}
  		}
  	}
docs: /*
  Use @BeforeClass event in order to scan the test class for annotation we might be interesting.
  Event fired Before the Class execution.