# Hierarchy For Package io.vertx.core

Package Hierarchies:

- All Packages

## Class Hierarchy

- java.lang.Object
  - io.vertx.core.AbstractVerticle (implements io.vertx.core.Verticle)
  - io.vertx.core.DeploymentOptions
  - io.vertx.core.DeploymentOptionsConverter
  - java.lang.Throwable (implements java.io.Serializable)
    - java.lang.Exception
      - java.lang.RuntimeException
        - io.vertx.core.VertxException
  - io.vertx.core.cli.UsageMessageFormatter
    - io.vertx.core.impl.launcher.VertxCommandLauncher
      - io.vertx.core.Launcher (implements io.vertx.core.impl.launcher.VertxLifecycleHooks)
  - io.vertx.core.VerticleBase (implements io.vertx.core.Deployable)
  - io.vertx.core.VertxOptions
  - io.vertx.core.VertxOptionsConverter

## Interface Hierarchy

- io.vertx.core.AsyncResult<T>
  - io.vertx.core.Future<T>
    - io.vertx.core.CompositeFuture
    - io.vertx.core.Timer (also extends java.util.concurrent.Delayed)
- io.vertx.core.Closeable
- java.lang.Comparable<T>
  - java.util.concurrent.Delayed
    - io.vertx.core.Timer (also extends io.vertx.core.Future<T>)
- io.vertx.core.Completable<T>
  - io.vertx.core.Promise<T>
- io.vertx.core.Context
- io.vertx.core.Deployable
  - io.vertx.core.Verticle
- io.vertx.core.Expectation<V>
- io.vertx.core.Handler<E>
- java.lang.Iterable<T>
  - io.vertx.core.MultiMap
- io.vertx.core.metrics.Measured
  - io.vertx.core.Vertx
  - io.vertx.core.WorkerExecutor
- io.vertx.core.VertxBuilder

## Enum Hierarchy

- java.lang.Object
  - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)
    - io.vertx.core.ThreadingModel