a Search Data Type dialog box that you can use to search for the
names of Java classes that the services define. You can create a
variable that holds data that any of these Java classes represent.
For example, a Java object that has no corresponding variable
type can be passed into the process when it is invoked. You can
use the Search Data Type dialog box to create a variable that is
suitable for storing the object.
In the Search box, type part or all of the Java class, and then
click Search to find matching classes.
To see all of the defined classes, provide no
value in the Search box, and click Search.