// Test equality
        assertTrue(data1.equals(data2));
        assertTrue(data2.equals(data1));
        assertEquals(data1.hashCode(), data2.hashCode());

        // Test reflexivity
        assertTrue(data1.equals(data1));

        // Test with null
        assertFalse(data1.equals(null));

        // Test with different class
        assertFalse(data1.equals("string"));
    }

        data1 = connection.receive_text()
        assert data1 == "You wrote: Hello from 1234"
        data2 = connection_two.receive_text()
        client1_says = "Client #1234 says: Hello from 1234"
        assert data2 == client1_says
        data1 = connection.receive_text()
        assert data1 == client1_says
        connection_two.close()
        data1 = connection.receive_text()

        // Test fluent API with convenience methods
        RequestData data1 = RequestDataBuilder.newRequestData().get().url("https://example.com/get").weight(1.0f).build();

        assertEquals(Method.GET, data1.getMethod());
        assertEquals("https://example.com/get", data1.getUrl());

        // produces the same output as the old custom implementation

        // Test case 1: Standard padding
        final byte[] data1 = "abc".getBytes();
        assertEquals("YWJj", Base64Util.encode(data1));

        // Test case 2: Single padding
        final byte[] data2 = "abcd".getBytes();
        assertEquals("YWJjZA==", Base64Util.encode(data2));

        // Create ResponseData in various states
        ResponseData data1 = null;
        ResponseData data2 = new ResponseData();
        ResponseData data3 = new ResponseData();
        data3.setUrl("https://example.com");
        data3.setHttpStatusCode(404);

        // All should complete without error and without modification
        processor.process(data1);
        processor.process(data2);
        processor.process(data3);

    /**
     * Test that validateInputStream is consistent across multiple calls.
     */
    public void test_validateInputStream_consistentAcrossMultipleCalls() {
        final InputStream in1 = new ByteArrayInputStream("data1".getBytes());
        final InputStream in2 = new ByteArrayInputStream("data2".getBytes());

        // First call
        extractor.testValidateInputStream(in1);

        // Second call with different stream