fail("Should have thrown RuntimeException");
        } catch (RuntimeException e) {
            assertEquals("Simulated processing error", e.getMessage());
            // If InputStream wasn't properly closed, this would leak resources
            // try-with-resources ensures cleanup happens
        } catch (IOException e) {
            fail("Should not throw IOException: " + e.getMessage());
        }
    }

    /**

        // Execute
        service.add(sessionId, url);

        // Verify
        assertEquals(1, mockQueue.size());
        UrlQueueImpl<Long> added = mockQueue.peek();
        assertNotNull(added);
        assertEquals(sessionId, added.getSessionId());
        assertEquals(url, added.getUrl());
        assertEquals(Constants.GET_METHOD, added.getMethod());