This Bugzilla instance is a read-only archive of historic NetBeans bug reports. To report a bug in NetBeans please follow the project's instructions for reporting issues.
In the sequence diagram, using Display Sequence Diagram Messages->Show Nothing in the option to create messages with. After messages are created, then select Show Name option from Tools->Options->UML. Now, the message names entered through properties for existing messages do not show up and a manual right click on the message to select Labels->Show Message Name manually to get it to show up. This is because the Show Name option was selected after creating messages. However, since "Display Sequence Diagram Messages" is a global option and to avoid user confusion, it should have applied to existing messages where Message Names are selected to be shown to avoid another manual action to be performed.