Is there a built-in implementation of Handler in the Java standard library?

The standard Java library (JDK) does not include a Handler class similar to the one used in Android. The Handler class is part of the Android SDK and is designed for working with message queues and interacting with the Looper in Android threads. In Java SE, other mechanisms are typically used for similar tasks, such as ExecutorService, BlockingQueue, or classes from the java.util.concurrent package, but there is no direct equivalent of Handler.