Since 2015 Twitter allows sending messages to any user who checked "Receive Direct Messages from anyone" in profile settings. You can't do that with Spring Social Twitter. If a recipient has this option unchecked, there's the expected exception:
org.springframework.social.twitter.api.InvalidMessageRecipientException: You cannot send messages to users who are not following you.
But with this option checked, there is also an exception:
org.springframework.social.OperationNotPermittedException: You are sending a Direct Message to users that do not follow you.
Since 2015 Twitter allows sending messages to any user who checked "Receive Direct Messages from anyone" in profile settings. You can't do that with Spring Social Twitter. If a recipient has this option unchecked, there's the expected exception:
org.springframework.social.twitter.api.InvalidMessageRecipientException: You cannot send messages to users who are not following you.But with this option checked, there is also an exception:org.springframework.social.OperationNotPermittedException: You are sending a Direct Message to users that do not follow you.