I got a problem with the Jasper Studio application. I want to make a parameter, but I don't find java.lang.collection in the class select.
What's the solution so that java.lang.collection is in the application
You have 2 options
Type the class directly (it's an select, but you can also type)
Press the button next to the select it will open a Dialog as shown in image, then type your class and press "OK"
I'm not sure what class java.lang.collection is I guess your are looking for java.util.Collection
来源：https://stackoverflow.com/questions/54339527/how-to-define-a-class-of-a-parameter-that-is-not-present-in-the-select