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In the default NetBeans distro, a number of nodes in the Templates tree have only one subitem (such as "Jar archives -> JAR Recipe"). It would be preferable to suppress the "Jar archives" node unless there are more subnodes. With the changes in issue 28623, the amount of work to determine if a subnode of the tree has children will be trivial, so this should not adversely impact performance in any significant way.
Assigning to Tim
Re-assigning Tim's issues to Dafe.
Seems to be fixed in nowadays New Wizard.
Not planed for ever