An example of reified generic types in Java

EventHandler.java

public abstract class EventHandler<E extends Event> {

  @SafeVarargs
  protected EventHandler(final E... reifiedTypeArray) {
    if (reifiedTypeArray.length > 0) {
      throw new IllegalArgumentException();
    }
    final var reifiedType = reifiedTypeArray.getClass().getComponentType();
    EventBus.registerHandler((Class<? extends Event>) reifiedType, this);
  }

  public abstract void handle(E e);
}