https://jakarta.ee/specifications/platform/11/apidocs/jakarta/activation/datahandler
DataHandler (Jakarta EE Platform API)
declaration: package: jakarta.activation, class: DataHandler
jakarta ee platformapi
https://packagist.org/packages/rollun-com/rollun-datahandler
rollun-com/rollun-datahandler - Packagist.org
Rollun zend-expressive skeleton. Begin developing applications in seconds!
packagist
https://docs.oracle.com/javase/8/docs/api/javax/activation/DataHandler.html
DataHandler (Java Platform SE 8 )
java platformse