@monkeypatch_method_if_not_set(netref_list)
def __tojava__(self, java_type):
    print '__tojava__ on', type(self)
    # from PySequence.java in Jython's source code
    if java_type.isArray():
        component = java_type.getComponentType()
        print '... got component as', type(component), repr(component)
        from org.python.core import PyArray
        from java.lang import Integer
        array = PyArray(component, Integer(len(self)));