public interface PackageRenameHandler
This handler is used by PackageViewChildren.PackageNode.setName() method.
PackageNode.setName() uses Lookup.getDefault() to lookup for instances of
packageRenameHandler. If there is one instance found, it's handleRename(...)
method is called to handle rename request. More than one instance of
PackageRenameHandler is not allowed.
void handleRename(Node node,
node - on this node rename was requested
newName - new name of node
IllegalArgumentException - thrown if rename cannot be performed