# 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.ServiceHelper
  - io.vertx.core.Starter
  - 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.VertxOptions
  - io.vertx.core.VoidHandler (implements io.vertx.core.Handler<E>)

## Interface Hierarchy

- io.vertx.core.AsyncResult<T>
  - io.vertx.core.Future<T>
    - io.vertx.core.CompositeFuture
- io.vertx.core.Closeable
- io.vertx.core.Context
- io.vertx.core.Handler<E>
  - io.vertx.core.AsyncResultHandler<T>
- java.lang.Iterable<T>
  - io.vertx.core.MultiMap
- io.vertx.core.metrics.Measured
  - io.vertx.core.Vertx
  - io.vertx.core.WorkerExecutor
- io.vertx.core.streams.StreamBase
  - io.vertx.core.streams.ReadStream<T>
    - io.vertx.core.TimeoutStream
- io.vertx.core.Verticle

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