/* (non-Javadoc)
* @see org.osgi.framework.BundleActivator#start(org.osgi.framework.BundleContext)
*/
public void start(BundleContext ctx) throws Exception {
this.ctx = ctx;
PersistenceProvider provider = new PersistenceProviderImpl();
Hashtable<String, String> props = new Hashtable<String, String>();
// Aries queries for service providers by property "javax.persistence.provider"
props.put(PERSISTENCE_PROVIDER_ARIES, OSGI_PERSISTENCE_PROVIDER);
// The persistence service tracker in the geronimo spec api bundle examines
// the property named "javax.persistence.PersistenceProvider" rather than