In case of connection of Spark 2.8.2 to the Openfire 4.1.1 server the error - "Unable to verify certificate" appears
To clean an error, did the following:
Came into Spark in "In addition" and included "Accept all certificates (self-signed/expired/not trusted)". Further there was a new error of "Certificate hostname verification failed". I included "Disable certificate hostname verification (not recommended)" the final error - "The wrong user name or the password" appeared. In login, the password and the server I can have no error. In what there can be a problem?
The Spark 2.7.7 version works without problems.