var one = Org.Application.app.getController('Org.Application.summary.view.sample.SampleController');// Unable to get property 'getController' of undefined or null reference
var two = this.getApplication().getController('Org.Application.summary.view.sample.SampleController').getOOP(); // Object doesn't support property or method 'getApplication'
var three = Org.Application.getController('Org.Application.summary.view.sample.SampleController').getOOP();// Object doesn't support property or method 'getController'