Karaf PaxExam getting java.lang.IllegalStateException: Invalid BundleContext

Question

Hi i am loading some features and bundles in runtime using FeaturesService and BundleContext. All these things are loaded successfully. After that if i do an operation on bundlecontext object i am getting java.lang.IllegalStateException: Invalid BundleContext.

@Inject
FeaturesService service;
@Before
public void init() throws Exception{
    service.installFeature("hibernate");
    service.installFeature("hibernate-validator");
    service.installFeature("transaction");
    service.installFeature("jpa");
    service.installFeature("hibernate-envers");
    service.installFeature("hibernate-envers");
    bc.installBundle("wrap:mvn:com.oracle/ojdbc6/11.2.0").start();
    service.installFeature("DBHandler");
    bc.getBundle(); // Fails
}

After a lot of browsing i understood you need to refresh the bundles. How to do it programatically and get a refeshed bundleContext object

Answer 1

This code fixed my problem

public  void refreshBundles() { 

        Bundle currentBundle = FrameworkUtil.getBundle(MyTest.class); 
        if (currentBundle == null) { 
            return; 
        } 

        BundleContext bundleContext = currentBundle.getBundleContext(); 
        if (bundleContext == null) { 
            return; 
        } 

        Bundle systemBundle = bundleContext.getBundle(0); 
        if (systemBundle == null) { 
            return; 
        } 

        FrameworkWiring frameworkWiring = systemBundle.adapt(FrameworkWiring.class); 
        frameworkWiring.refreshBundles(null); 
        bc = frameworkWiring.getBundle().getBundleContext();
    }