@SuppressWarnings("unchecked")
    Class<E> result = classOrNull == null ? (Class<E>) (Class<?>) Object.class : classOrNull;
    return result;
  }

  /*
   * If I understand correctly:
   *
   * This needs to be a @JsMethod so that J2CL knows to look for a JavaScript implemention of
   * it in Platform.native.js. (The JavaScript implementation inline below is visible to *GWT*, but

        // Prepare encoded data for "TEST    " (with trailing spaces)
        byte[] src = new byte[100];
        src[0] = 0x20;

        // Encode "TEST" correctly
        // T=0x54: upper nibble 0x5->F(0x46), lower nibble 0x4->E(0x45)
        src[1] = 'F';
        src[2] = 'E'; // T
        // E=0x45: upper nibble 0x4->E(0x45), lower nibble 0x5->F(0x46)
        src[3] = 'E';

                logger.info("ThumbnailGenerator is stopped.");
            }
            exitCode = Constants.EXIT_FAIL;
        } catch (final Throwable t) {
            logger.error("ThumbnailGenerator does not work correctly.", t);
            exitCode = Constants.EXIT_FAIL;
        } finally {
            if (systemMonitorTask != null) {
                systemMonitorTask.cancel();
            }
            destroyContainer();

httpx.post(callback_url, json={"description": "Invoice paid", "paid": True})
```

But possibly the most important part of the callback is making sure that your API user (the external developer) implements the *external API* correctly, according to the data that *your API* is going to send in the request body of the callback, etc.

So, what we will do next is add the code to document how that *external API* should look like to receive the callback from *your API*.

        assertNotNull(middle, "Middle tree should not be null");
        assertNotNull(inner, "Inner tree should not be null");
        assertSame(middleTree, middle, "Should return correct middle tree");
        assertSame(innerTree, inner, "Should return correct inner tree");
    }

    /**
     * Test for unwrap with incompatible type.
     * Verifies behavior when trying to unwrap to an incompatible type.
     */
    @Test

        } catch (NoSuchMethodException e) {
            fail("getSearchEngineHttpAddress method should exist");
        }
    }

    public void test_systemProperty_independence() {
        // Test that method correctly reads from system properties each time
        String originalValue = System.getProperty(Constants.FESS_SEARCH_ENGINE_HTTP_ADDRESS);

        try {
            // Set initial value

        int result = response.readSetupWireFormat(buffer, 0, buffer.length);

        assertEquals(0, result);
    }

    @Test
    @DisplayName("Test readParametersWireFormat reads length correctly")
    void testReadParametersWireFormat() throws Exception {
        byte[] buffer = new byte[100];
        int expectedLength = 0x12345678;

        // Write length in little-endian format

        lenient().when(configuration.getDefaultDomain()).thenReturn("TEST_DOMAIN");
    }

    /**
     * Test the init method of the servlet.
     * Verifies that servlet is correctly initialized with parameters from ServletConfig.
     * @throws ServletException
     */
    @Test
    void testInit() throws ServletException {
        assertDoesNotThrow(() -> ntlmServlet.init(servletConfig));

    else
      JAVACMD="$JAVA_HOME/bin/java"
    fi
  else
    JAVACMD="`which java`"
  fi
fi

if [ ! -x "$JAVACMD" ] ; then
  echo "Error: JAVA_HOME is not defined correctly." >&2
  echo "  We cannot execute $JAVACMD" >&2
  exit 1
fi

if [ -z "$JAVA_HOME" ] ; then
  echo "Warning: JAVA_HOME environment variable is not set."
fi

        // Verify all values are set correctly
        assertEquals(TEST_CREATE_TIME, info.getCreateTime());
        assertEquals(TEST_LAST_ACCESS_TIME, info.getLastAccessTime());
        assertEquals(TEST_LAST_WRITE_TIME, info.getLastWriteTime());
        assertEquals(TEST_ATTRIBUTES, info.getAttributes());
    }

    @Test
    @DisplayName("Test getFileInformationLevel returns correct value")
    void testGetFileInformationLevel() {