Salesforce: connection refused error message coming from a java client connecting to salesforce

Salesforce: connection refused error message coming from a java client connecting to salesforce Helpful? Please support me on Patreon: https://www.patreon.com/roelvandepaar With thanks & praise to God, and with thanks to the many people who have made this project possible! | Content (except music & images) licensed under CC BY-SA https://meta.stackexchange.com/help/licensing | Music: https://www.bensound.com/licensing | Images: https://stocksnap.io/license & others | With thanks to user buyan kumar (salesforce.stackexchange.com/users/2252), user ashishcloud (salesforce.stackexchange.com/users/3022), user Alap Mistry (salesforce.stackexchange.com/users/45572), and the Stack Exchange Network (salesforce.stackexchange.com/questions/13187). Trademarks are property of their respective owners. Disclaimer: All information is provided "AS IS" without warranty of any kind. You are responsible for your own actions. Please contact me if anything is amiss at Roel D.OT VandePaar A.T gmail.com