Create a new plugin project "de.vogella.osgi.firstbundle".

Create the following thread class.

				
package de.vogella.osgi.firstbundle.internal;

public class MyThread extends Thread {
	private volatile boolean active = true;

	public void run() {
		while (active) {
			System.out.println("Hello OSGI console");
			try {
				Thread.sleep(5000);
			} catch (Exception e) {
				System.out.println("Thread interrupted " + e.getMessage());
			}
		}
	}

	public void stopThread() {
		active = false;
	}
}

			

Change the class Activator.java to the following.

				
package de.vogella.osgi.firstbundle;

import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;

import de.vogella.osgi.firstbundle.internal.MyThread;

public class Activator implements BundleActivator {
	private MyThread myThread;

	public void start(BundleContext context) throws Exception {
		System.out.println("Starting de.vogella.osgi.firstbundle");
		myThread = new MyThread();
		myThread.start();
	}

	
	public void stop(BundleContext context) throws Exception {
		System.out.println("Stopping de.vogella.osgi.firstbundle");
		myThread.stopThread();
		myThread.join();
	}

}

			

Select your manifest.mf, right-click, select Run As-> Run Configuration. Create a OSGi Framework launch configuration. Deselect all bundles except your de.vogella.osgi.firstbundle. Press then "Add Required bundles".

Run this configuration. This should give you the following output. Every 5 second a new message should be written to the console.

Export your bundle. This will allow you to install it into a OSGi runtime. Select your bundle and choose File -> Export -> Plug-in Development -> "Deployable plug-ins and fragment".

Unflag the option to export the source.