Thomas,
The problem is that the name you gave your JSP file is not valid for a Java classname. For example, you’ll notice that if you try to create a class named support-something.java that the wizard won’t let you. When the JSP system tries to validate and compile your code by turning it into a compilation unit, it cannot because the name isn’t valid for a Java class. As a result, you receive this error.
However, we should still try to do something about it since it’s a valid JSP name. The above is a workaround to get you moving.