It is NetBeans module for start Groovy scripts with Groovy executable.
For execute Groovy scripts with external Groovy executable path to Groovy executable should be set. There are 2 ways for configuration path to Groovy executable
Path to Groovy executable can be set for all "Groovy Scripts" projects in menu item "Tools"-"Options" tab "Miscellaneous" subtab "Groovy Script"
Path to Groovy executable can be set for "Groovy Script" project in project properties.
Groovy script can be started in such ways: