# Embedding Glassfish V3 in Unit Test - Two Jars, Three Lines Of Code And Five Seconds Start With Deployment

There is already a great blog entry about using Glassfish v3 in embedded mode (I "reused" some ideaas and even code from the post - this is how web works :-)). It explains the whole process, to install, build and test Glassfish v3 using maven 2. However I just liked to do it without maven - and as easy as possible. To start glassfish you only need two jar:gf-embedded-api-1.0-alpha-4.jarweb-all-10.0-build-20080430.jarHaving them in the classpath, you can start glassfish v3 just from your code - in process:   GlassFish glassfish = new GlassFish(port);It is not only possible to start glassfish in embedded code, it is even possible to deploy applications on the fly. The following code does exactly that:ScatteredWar war = new
ScatteredWar(NAME, new File("src/main/resources"), new
File("src/main/resources/WEB-INF/web.xml"),   Collections.singleton(new
File("build/classes").toURI().toURL()));glassfish.deploy(war); ...and the full test code: import org.glassfish.embed.GlassFish;import org.glassfish.embed.ScatteredWar;//and other obvious importspublic class HelloServletTest{    private final String NAME = "AppTest";public static int port = 9999;private GlassFish glassFish;    @Before    public void bootGlassfish() throws Exception{        this.glassFish = newGlassFish(port);        assertNotNull(this.glassFish);    }    @Test    public void testServlet() throws Exception {        URL url = new URL("http://localhost:" + port + "/" + NAME + "/HelloServlet");        BufferedReader br = new BufferedReader(                new InputStreamReader(                url.openConnection().getInputStream()));        assertEquals("Hallo from servlet", br.readLine());    }    private GlassFish newGlassFish(int port) throws Exception {        GlassFish glassfish = new GlassFish(port);        ScatteredWar war = new ScatteredWar(NAME,                new File("src/main/resources"),                new File("src/main/resources/WEB-INF/web.xml"),                Collections.singleton(new File("build/classes").toURI().toURL()));        glassfish.deploy(war);        System.out.println("Ready ...");        return glassfish;    }        @After    public void shutdown(){           this.glassFish.stop();    }The unit test is only a sample, in general I woul start glassfish in the static @BeforeClass method - for one test it is good enough.Glassfish v3 is not production ready yet - but it becomes more and more interesting for development. Cannot wait for embeddable EJB 3 containers :-).I checked in the whole project (with servlet, glassfish jars and the unit test) into the p4j5. The project name is: EmbeddedGlassfishWeb. The remaining question is: from where I have this two jars - the answer is simple: from the maven repository :-).So, and I'm going to present this stuff now  - I'm at Jazoon :-).