In-process trapping for service substitution in hosted applicaitons executing on mobile devices with multi operating system environment

The invention provides a computing device that includes a central processing unit that executes a native operating system including native runtime environments with native software applications. Each native software application has instructions for execution under the native operating system. Hosted runtime environments execute within the native runtime environments, each of the hosted runtime environments executing hosted software applications that have instructions for execution under a hosted operating system that differs from the native operating system. A first hosted software application executing as a first process of the hosted runtime environments includes an instruction that references a member of an object defined by an object-oriented programming (OOP) class. The process executes that instruction utilizing data and/or code other than that specified by the referenced class as the referenced member. 本发明涉及种计算装置，包括：中央处理单元，所述中央处理单元执行本机操作系统，所述本机操作系统包括具有本机软件应用的本机运行时间环境。每个本机软件应用具有用于在本机操作系统下执行的指令。寄载运行时间环境在