Ensure the 'Create java project' checkbox is ticked, and then set the source folder to be src/main/java and set the Target Platform to a standard 'OSGi Framework'.

Then press the Next button to set some details associated with the plugin, such as the version, description, provider, etc.

In this example, we will be registering the validator using the OSGi registerService method. This is performed in the bundle activator, whose class is set in the plugin details. For example, in the start method of the created Activator, we would have:

	public void start(BundleContext context) throws Exception {
        Properties props = new Properties();
        
        ProtocolValidator validator=new ConnectednessValidator();
        
        context.registerService(ProtocolValidator.class.getName(), 
				validator, props);
	}		
		

After pressing the Next button, you will be asked about adding JUnit to the classpath.

Choose the Open the build path property page option and press the Ok button. The reason for not adding JUnit directly, is that this would cause it to be included in the list of bundle dependencies in the OSGi manifest, which would mean that the runtime environment that includes the validator would also have a dependency on JUnit.

Therefore we need to add the JUnit jars to the Eclipse project in a different way. In the build path dialog, select the Libraries tab and then select the Add Library button. When the list of libraries is presented, select the JUnit entry and press Next where the JUnit version should be set to JUnit4 and then press the Finish button.