Troubleshooting guide

Packaging and distributing applications

Preverify applications

To reduce the amount of processing the BlackBerry® device performs when you load your application, partially

verify your classes.

> Issue a command from the command line in the following format:

preverify.exe [-d] output -classpath <directory> input; <directory>

To preverify .cod files, you may also use the BlackBerry device simulator. See the Simulator Guide for more

information about the BlackBerry device simulator.

Determine if your code requires signatures

Research In Motion (RIM) tracks the use of sensitive APIs in the BlackBerry® Java™ Development Environment for

security and export control reasons.

> Locate the item in the API Reference. If the item has a lock icon or is noted as “signed”, your application

requires a signed key or signature, which RIM provides, before you can load the application .cod files onto a

BlackBerry device.

Controlled APIs

Three categories of Research In Motion (RIM) Controlled APIs exist: Runtime APIs, BlackBerry® Application APIs,

and BlackBerry Cryptography APIs. See the

API Reference for more information about all RIM controlled APIs.

You can run applications that use controlled APIs in the BlackBerry device simulator without code signatures;

however, you must request code signatures from RIM before you can load these applications onto BlackBerry

devices.

Preverify applications

Determine if your code requires signatures

Request code signatures

Distributing applications over the wireless network

Distributing applications with the BlackBerry Desktop Software

Note: To test and debug your code before receiving code signatures, use the BlackBerry device simulator. Code must have code

signatures for loading onto BlackBerry devices.