*/
    @Override
    public boolean equals(final Object obj) {
        if (obj instanceof final NtlmPasswordAuthentication ntlm) {

* Each application that you have running on your computer has some process behind it, each running program, each window, etc. And there are normally many processes running **at the same time** while a computer is on.
* There can be **multiple processes** of the **same program** running at the same time.

      }
    }

    @Override
    public @Nullable V compute(
        K key,
        BiFunction<? super K, ? super @Nullable V, ? extends @Nullable V> remappingFunction) {
      synchronized (mutex) {
        return delegate().compute(key, remappingFunction);
      }
    }

Asynchronous code just means that the language 💬 has a way to tell the computer / program 🤖 that at some point in the code, it 🤖 will have to wait for *something else* to finish somewhere else. Let's say that *something else* is called "slow-file" 📝.

So, during that time, the computer can go and do some other work, while "slow-file" 📝 finishes.

	if IsErrIgnored(err, kes.ErrNotAllowed, kms.ErrNotSupported, errors.ErrUnsupported, kms.ErrPermission) {
		// If we don't have permission to compute the HMAC, don't change the cred.
		return globalActiveCred
	}
	if err != nil {
		logger.Fatal(err, "Unable to generate root access key using KMS")
	}

    assertThrows(UnsupportedOperationException.class, () -> unmod.computeIfPresent(4, (k, v) -> v));
    assertThrows(UnsupportedOperationException.class, () -> unmod.compute(4, (k, v) -> v));
    assertThrows(UnsupportedOperationException.class, () -> unmod.merge(4, "four", (k, v) -> v));
    assertThrows(UnsupportedOperationException.class, () -> unmod.clear());

                }
            }

            /* Verification fails (w/ W2K3 server at least) if status is not 0. This
             * suggests MS doesn't compute the signature (correctly) for error responses
             * (perhaps for DOS reasons).
             */
            if (digest != null && resp.errorCode == 0) {
                digest.verify(BUF, 4, resp);
            }

        // Store computed repositories per project to avoid leakage between projects
        private final Map<String, List<ArtifactRepository>> projectRepositories = new ConcurrentHashMap<>();

        /**
         * Get the effective repositories for a project. If project-specific repositories
         * have been computed and stored, use those; otherwise fall back to request repositories.

    public boolean verifySignature(final byte[] buffer, final int i, final int size) {
        /*
         * Verification fails (w/ W2K3 server at least) if status is not 0. This
         * suggests MS doesn't compute the signature (correctly) for error responses
         * (perhaps for DOS reasons).
         */
        /*
         * Looks like the failure case also is just reflecting back the signature we sent
         */

      return expectedSize + 1;
    }
    if (expectedSize < Ints.MAX_POWER_OF_TWO) {
      // This seems to be consistent across JDKs. The capacity argument to HashMap and LinkedHashMap
      // ends up being used to compute a "threshold" size, beyond which the internal table
      // will be resized. That threshold is ceilingPowerOfTwo(capacity*loadFactor), where
      // loadFactor is 0.75 by default. So with the calculation here we ensure that the