Java wont import things correctly?

I have created a project and wished to add a sample project which was a web browser into it. I have made a copy of the jar in my library, copied the .java file and tried every other thing I can think to try. The problem is when I refactor the .java I get import errors:

import java.util.List;

import javafx.application.Application;

import javafx.beans.value.ChangeListener;

import javafx.beans.value.ObservableValue;

import javafx.event.ActionEvent;

import javafx.event.EventHandler;

import javafx.geometry.HPos;

import javafx.geometry.Insets;

import javafx.geometry.VPos;

import javafx.scene.Node;

import javafx.scene.Scene;

import javafx.scene.control.Button;

import javafx.scene.control.TextField;

import javafx.scene.layout.ColumnConstraints;

import javafx.scene.layout.GridPane;

import javafx.scene.layout.Pane;

import javafx.scene.layout.Priority;

import javafx.scene.layout.VBox;

import javafx.scene.web.WebEngine;

import javafx.scene.web.WebView;

import javafx.stage.Stage;

none of this happened with the sample, but only in my project. Other imports are working for my project just not this list. Please tell me how to fix it. I am using Netbeans 1.7.2 and trying to make the webviewbrowser work in another jar. Thanks!