https://en.wikipedia.org/wiki/Service_provider_interface

https://docs.oracle.com/javase/tutorial/sound/SPI-intro.html
https://docs.oracle.com/javase/tutorial/sound/SPI-providing-sampled.html
https://docs.oracle.com/javase/tutorial/sound/SPI-providing-MIDI.html

https://docs.oracle.com/javase/8/docs/api/java/util/spi/package-summary.html
https://docs.oracle.com/javase/8/docs/api/java/util/ServiceLoader.html

    ServiceLoader.load(Whether.class)

2019
https://www.baeldung.com/java-spi
2011
https://habr.com/ru/post/118488/
2002
https://resources.sei.cmu.edu/asset_files/TechnicalNote/2002_004_001_13958.pdf