### Question:
DatabaseConnectionResource implements Resource<DatabaseConnection> { @GET @Path("/get/{id}") @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) @Override public DatabaseConnection get(@PathParam("id") long id) { try { return (DatabaseConnection) HibernateUtil.retrieve(DatabaseConnection.class, id); } catch (Exception e) { e.printStackTrace(); throw new WebException(e, Response.Status.BAD_REQUEST); } }  @GET @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) @SuppressWarnings(Constants.SUPPRESS_WARNINGS_UNCHECKED) @Override List<DatabaseConnection> getAll(); @GET @Path("/get/{id}") @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) @Override DatabaseConnection get(@PathParam("id") long id); @POST @Path(Constants.STORE_RESOURCE_PATH) @Consumes(Constants.APPLICATION_JSON_RESOURCE_PATH) @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) DatabaseConnection executeDatabaseStore(DatabaseConnection dbConnection); DatabaseConnection store(DatabaseConnection dbConnection); @DELETE @Path("/delete/{id}") @Override void delete(@PathParam("id") long id); @POST @Path("/update") @Consumes(Constants.APPLICATION_JSON_RESOURCE_PATH) @Produces(Constants.APPLICATION_JSON_RESOURCE_PATH) @Override DatabaseConnection update(DatabaseConnection databaseConnection);  }### Answer:
@Test public void testGetDatabaseConnectionWithIncorrectId() throws EntityStorageException { HibernateUtil.clear(); DatabaseConnection actualDbConnection = dbResource.get(2); assertEquals(null, actualDbConnection); HibernateUtil.clear(); }