It had a dependency injection system. It required pre-registration of components, as other tools discussed above. But still, it was a great feature.

   *   the first time in a method that nanoTime() has been invoked, for which the special value 0L
   *   is reserved to mean "uninitialized". If timeout is non-positive, then nanoTime need never be
   *   called.
   * - Keep behavior of fair and non-fair instances consistent.
   */

  /**
   * A boolean condition for which a thread may wait. A {@code Guard} is associated with a single

    public static final String MAVEN_STYLE_PROJECT_DEFAULT = "f:cyan";

    /**
     * Maven output color mode.
     * Allowed values are <code>auto</code>, <code>always</code>, <code>never</code>.
     *
     * @since 4.0.0
     */
    @Config(defaultValue = "auto")
    public static final String MAVEN_STYLE_COLOR_PROPERTY = MAVEN_STYLE_PREFIX + "color";

    /**

          technical modifications necessary to circumvent Effective
          Technological Measures. For purposes of this Public License,
          simply making modifications authorized by this Section 2(a)
          (4) never produces Adapted Material.

       5. Downstream recipients.

            a. Offer from the Licensor -- Licensed Material. Every
               recipient of the Licensed Material automatically

import org.jspecify.annotations.Nullable;

/**
 * Static utility methods pertaining to {@link InetAddress} instances.
 *
 * <p><b>Important note:</b> Unlike {@code InetAddress.getByName()}, the methods of this class never
 * cause DNS services to be accessed. For this reason, you should prefer these methods as much as
 * possible over their JDK equivalents whenever you are expecting to handle only IP address string

import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.stream.Collector;
import org.jspecify.annotations.Nullable;

/**
 * A {@link RangeSet} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * @author Louis Wasserman
 * @since 14.0
 */
@SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989

**FastAPI** is all based on these type hints, they give it many advantages and benefits.

But even if you never use **FastAPI**, you would benefit from learning a bit about them.

/// note

If you are a Python expert, and you already know everything about type hints, skip to the next chapter.

///

    /** Gets the weak value reference held by entry. */
    WeakValueReference<K, V, E> getValueReference();
  }

  @SuppressWarnings("unchecked") // impl never uses a parameter or returns any non-null value
  static <K, V, E extends InternalEntry<K, V, E>>
      WeakValueReference<K, V, E> unsetWeakValueReference() {
    return (WeakValueReference<K, V, E>) UNSET_WEAK_VALUE_REFERENCE;

			// For tiered objects, read quorum is N/2+1 to ensure simple majority on xl.meta.
			// It is not equal to EcM because the data integrity is entrusted with the warm tier.
			// However, we never go below EcM, in case of a EcM=EcN setup.
			parities[index] = max(totalShards-(totalShards/2+1), metadata.Erasure.ParityBlocks)
		} else {
			parities[index] = metadata.Erasure.ParityBlocks
		}
	}
	return
}

 *
 * Every [edit] call must be matched by a call to [Editor.commit] or [Editor.abort]. Committing is
 * atomic: a read observes the full set of values as they were before or after the commit, but never
 * a mix of values.
 *
 * Clients call [get] to read a snapshot of an entry. The read will observe the value at the time
 * that [get] was called. Updates and removals after the call do not impact ongoing reads.
 *