ProductCode has ambigious import, can cause build failure on some systems

[chris grzegorczyk]

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Compile error during compilation with javac.
/home/decker/eucalyptus-2.0.0/clc/modules/msgs/src/main/java/com/eucalyptus/images/ProductCode.java:75: reference to Cache is ambiguous, both class javax.persistence.Cache in javax.persistence and class org.hibernate.annotations.Cache in org.hibernate.annotations match
@Cache( usage = CacheConcurrencyStrategy.READ_WRITE )
 ^

Remedy is to have explicit imports.

[Thierry Carrez (ttx)]

I think this was misfiled in ubuntu/eucalyptus and should have been filed in Eucalyptus upstream, please correct me if I'm wrong.

Chris: you mention "some systems", if that does not include Ubuntu, feel free to close the ubuntu task as Invalid.

[chris grzegorczyk (chris-grze)]

Sorry about that! The conflict arises due to a redefinition of {javax.persistence,org.hibernate.annotations}.Cache with geronimo. This may arise in the future, so I note the details for posterity.

cheers.