URLs containing tag wildcard characters * do not work properly in chat.
This means that a chat message containing the URL https://stackoverflow.com/questions/tagged/java* will redirect to https://stackoverflow.com/questions/tagged/java when clicked.
As a workaround, it is possible to manually hyperlink URLs with asterisk characters using markdown formatting. (i.e. [java*](https://stackoverflow.com/questions/tagged/java*) = java*)
You can see this for yourself in the Stack Overflow Chat Sandbox.
