wicket-1.3.x uses class from java 1.5, therefore doesn't compile on java 1.4 as it should

current wicket 1.3.x does not compile with jdk 1.4

class

org.apache.wicket.util.crypt.KeyInSessionSunJceCryptFactory

uses the class

java.util.UUID

which exist @since 1.5

this should be fixed as wicket-1.3 requires a minimum jdk of 1.4