@Override public String toString() {
    return "[EventProducer " + method + "]";
  }
Invokes the wrapped producer method.

@throws java.lang.IllegalStateException  if previously invalidated.
@throws java.lang.reflect.InvocationTargetException  if the wrapped method throws any {@link Throwable} that is not
    an {@link Error} ({@code Error}s are propagated as-is).
otto/src/main/java/com/squareup/otto/EventProducer.java