Doesn't recognizes an object's methods

I have this object: import br.com.task.taskcontrol.model.DhcpDAO and I use it as a global in br.com.task.taskcontrol.ucf.DhcpWriter , however, DhcpWriter doesn't recognizes some DhcpDAO methods (it doesn't reconizes the methods that were implemented recently)

Someone knows why this could be?

obs.1: this is kind of silly but, all DhcpDAO methods used by DhcpWriter are publics.

obs.2: DhcpDAO does not implements any interface. It extends an superclass, and this superclass isn't abstract and doesn't has any abstract methods.

[557 byte] By [ariane.felix@gmail.coma] at [2007-10-3 9:14:42]