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class InterceptedConversationImpl implements EditableConversation
{
    private static final long serialVersionUID = 283349344155364553L;

    private final EditableConversation wrapped;

    public InterceptedConversationImpl(EditableConversation wrapped)
    {
        this.wrapped = wrapped;
    }

    //delegate methods to this.wrapped and intercept the need methods or change the behaviour completely
}