Is java.util.UUID supported by jaspersoft ?

Hello everyone,

I try to create a UUID parameter from a string and I had an error message : 

java.util.UUID.fromString cannot be resolved to a type 

Same error if I want to create a random UUID with java.util.UUID.randomUUID

Does anybody know how to create a UUID from String in jasper, or if it's possible to use UUIDs in the first place ?

Thanks in advance