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Access to memory

The BlackBerry® Java® Development Environment is designed to inhibit applications from causing problems accidentally or maliciously in other applications or on the BlackBerry device. BlackBerry applications can write only to the BlackBerry device memory that the BlackBerry® Java® Virtual Machine uses; they cannot access the virtual memory or the persistent storage of other applications (unless they are specifically granted access to do so). A BlackBerry® Java Application can only access persistent storage or user data, or communicate with other applications, through specific BlackBerry APIs. Research In Motion must digitally sign a BlackBerry Java Application that uses these BlackBerry APIs, to provide an audit trail of applications that use sensitive APIs.


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