public class Main {

	public static void main(String[] args) {
		// Create a simple XY chart
		XYSeries series = new XYSeries("XYGraph");
		series.add(1, 1);
		series.add(1, 2);
		series.add(2, 1);
		series.add(3, 9);
		series.add(4, 10);
		// Add the series to your data set
		XYSeriesCollection dataset = new XYSeriesCollection();
		dataset.addSeries(series);
		// Generate the graph
		JFreeChart chart = ChartFactory.createXYLineChart(
		"XY Chart", // Title
		"x-axis", // x-axis Label
		"y-axis", // y-axis Label
		dataset, // Dataset
		PlotOrientation.VERTICAL, // Plot Orientation
		true, // Show Legend
		true, // Use tooltips
		false // Configure chart to generate URLs?
		);
		try {
		ChartUtilities.saveChartAsJPEG(new File("C:\\chart.jpg"), chart, 500, 300);
		} catch (IOException e) {
		System.err.println("Problem occurred creating chart.");
		}
		}
}

Exception in thread "main" java.lang.NoClassDefFoundError: org/jfree/util/PublicCloneable
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(Unknown Source)
	at java.security.SecureClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.defineClass(Unknown Source)
	at java.net.URLClassLoader.access$100(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at org.jfree.data.xy.XYSeriesCollection.<init>(XYSeriesCollection.java:98)
	at org.jfree.data.xy.XYSeriesCollection.<init>(XYSeriesCollection.java:88)
	at Main.main(Main.java:19)
Caused by: java.lang.ClassNotFoundException: org.jfree.util.PublicCloneable
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.net.URLClassLoader$1.run(Unknown Source)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)
	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
	at java.lang.ClassLoader.loadClass(Unknown Source)