old_contents: from pyjamas.ui.Composite import Composite
  
  class Sink(Composite):
      def __init__(self):
          Composite.__init__(self)
      
      def onHide(self):
          pass
          
      def onShow(self):
          pass
  
      def baseURL(self):
          return ""
  
  class SinkInfo:
      def __init__(self, name, desc, object_type):
          self.name=name
          self.description=desc
          self.object_type=object_type
          self.instance=None
  
      def createInstance(self):
          if hasattr(self.object_type, "__new__"):
              return self.object_type.__new__()
          return self.object_type()
  
      def getDescription(self):
          return self.description
  
      def getInstance(self):
          if self.instance==None:
              self.instance=self.createInstance()
          return self.instance
      
      def getName(self):
          return self.name
      
  
new_contents: from pyjamas.ui.Composite import Composite
  
  class Sink(Composite):
      def __init__(self):
          Composite.__init__(self)
      
      def onHide(self):
          pass
          
      def onShow(self):
          pass
  
      def baseURL(self):
          return ""
  
  class SinkInfo:
      def __init__(self, name, desc, object_type):
          self.name=name
          self.description=desc
          self.object_type=object_type
          self.instance=None
  
      def createInstance(self):
          return self.object_type()
  
      def getDescription(self):
          return self.description
  
      def getInstance(self):
          if self.instance==None:
              self.instance=self.createInstance()
          return self.instance
      
      def getName(self):
          return self.name
      
  
subject: remove use of __new__