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Programming Wireless Devices with the Java™ 2 Platform, Micro Edition, Second Edition by Jim Holliday - Editor, Aleksi Uotila, Mark Patel, Jyri Huopaniemi, Jim Van Peursem, Antero Taivalsaari, Roger Riggs

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18.2. Sandbox for Untrusted MIDlet Suites

The MIDP Specification version 1.0 constrained MIDlet suites to operate in a sandbox that prevented access to sensitive APIs and functions of the device. This model was useful for many applications, and is included and formalized in the MIDP Specification version 2.0.

A MIDlet suite compliant with MIDP 1.0 must be able to run on a MIDP 2.0 device as an untrusted MIDlet suite. An untrusted MIDlet suite is a MIDlet suite for which the origin and the integrity of the JAR cannot be reliably determined by the device. Untrusted MIDlet suites execute in a restricted environment where access to the protected APIs or functions is either not allowed or allowed only with explicit user permission. The restricted ...

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