BlackBerry code signing warning

0
votes

I use following line of code in my blackberry java application (6.0) 

private static final int HPADDING = Display.getWidth() <= 320 ? 6 : 8;

but Eclipse gives me a warning saying That : 

Signing Required: RIM Runtime API (0x52525400): Protected Class     
net.rim.device.api.system.Display

The application installed on the device but it doesn't run. So I want to know that Is there any method to do this without signing the application. I'm very much new to blackberry please help me.

Thank you!

1
blackberryblackberry-simulatorblackberry-eclipse-pluginblackberry-jde
is there any problem in signing your app ?. signing is for security. - Signare
This element is only accessible by signed applications. If you intend to use this element, please visit blackberry.com/go/codesigning to obtain a set of code signing keys. Code signing is only required for applications running on BlackBerry smartphones; development on BlackBerry Smartphone Simulators can occur without code signing. - Hrushikesh Salkade
I tried to signing codes. After filling the necessary form received three keys but I have no that much experience so code signing didn't work. Is there any alternative method to do so. Thanks for your comments! - Grant
Unfortunatly there are no ways other than code signing. Could you please post what problems are you facing while signing code ? - Hrushikesh Salkade

1 Answers

2
votes

If your code contains a reference to Signed API then you have to sign your application before installing it on actual device. Unsigned application that uses Signed API can run on a simulator but won't launch on an actual device.

Apply for signing keys here: http://www.blackberry.com/go/codesigning

You will receive an email with attached signing keys. Follow the instructions in the received email to install these keys and use them to sign your application.