mod = result.module;
			inst = result.instance;
			document.getElementById("runButton").disabled = false;
		}).catch((err) => {
			console.error(err);
		});

		async function run() {
			console.clear();
			await go.run(inst);
			inst = await WebAssembly.instantiate(mod, go.importObject); // reset instance
		}
	</script>

	<button onClick="run();" id="runButton" disabled>Run</button>
</body>

        return (getFlags() & flag) != 0;
    }

    /**
     * Sets or clears the specified flag.
     *
     * @param flag The flag to set/clear (i.e.,
     * <code>NTLMSSP_NEGOTIATE_OEM</code>).
     * @param value Indicates whether to set (<code>true</code>) or
     * clear (<code>false</code>) the specified flag.
     */
    public void setFlag(final int flag, final boolean value) {

        long total = 0;
        while (from.read(buf) != -1) {
          ((Buffer) buf).flip();
          to.append(buf);
          total += buf.remaining();
          ((Buffer) buf).clear();
        }
        return total;
      }
    },
    NEW {
      @Override
      long copy(Readable from, Appendable to) throws IOException {
        return CharStreams.copy(from, to);
      }
    };

{* ../../docs_src/dependencies/tutorial011_an_py39.py hl[22] *}

/// tip

All this might seem contrived. And it might not be very clear how is it useful yet.

These examples are intentionally simple, but show how it all works.

In the chapters about security, there are utility functions that are implemented in this same way.

    // Test error handling in doCrawl
    public void test_doCrawl_withErrors() {
        // Clear any previous errors
        try {
            Field errorsField = Crawler.class.getDeclaredField("errors");
            errorsField.setAccessible(true);
            Queue<String> errors = (Queue<String>) errorsField.get(null);
            errors.clear();
        } catch (Exception e) {
            // Ignore if field doesn't exist
        }

                    Table<Integer, Character, String> table = HashBasedTable.create();
                    table.put(1, 'a', "foo");
                    table.clear();
                    populateForValues(table, elements);
                    return table.values();
                  }
                })
            .named("HashBasedTable.values")

            // Given
            byte[] buffer = new byte[20];
            int[] positions = { 0, 2, 4, 8, 10, 15 };

            for (int pos : positions) {
                // Clear buffer
                buffer = new byte[20];
                SMBUtil.writeInt2(4, buffer, pos);
                SMBUtil.writeInt2(0, buffer, pos + 2);

                // When

    try {
      if (inheritableThreadLocals != null) {
        inheritableThreadLocals.set(thread, null);
      }
    } catch (Throwable t) {
      logger.log(
          Level.INFO,
          "Failed to clear thread local values inherited by reference finalizer thread.",
          t);
    }

    thread.start();
  }

  private final WeakReference<Class<?>> finalizableReferenceClassReference;

        // Invalid integer should use default
        props.clear();
        props.setProperty("jcifs.smb.client.maxChannels", "invalid");
        config = new PropertyConfiguration(props);
        assertEquals(4, config.getMaxChannels());

        // Invalid channel binding policy should default to preferred
        props.clear();
        props.setProperty("jcifs.smb.client.channelBindingPolicy", "invalid");

            fail("Failed to reset SingletonContext instance: " + e.getMessage());
        }
        // Clear system properties that might affect the test
        System.clearProperty("jcifs.properties");
        System.clearProperty("java.protocol.handler.pkgs");
        // Clear jcifs-specific properties to prevent test interference
        System.clearProperty("jcifs.smb.client.nativeOs");