The teardown of a Process launched by `ProcessBuilder` includes the closing of streams and ensuring the termination of the process is the responsibility of the caller. A `Process.close()` method could provide a clear and obvious way to ensure all the streams are closed and terminate the process.

The try-with-resources statement is frequently used to open streams and ensure they are closed on exiting the block. By implementing `AutoClosable.close()` the completeness of closing the streams and process termination can be done by try-with-resources.

The actions of the `close()` method would be to close each stream and destroy the process if it has not terminated.