Hi Samuel, 

I had the same problem while invoking the update operation programmatically. To 
overcome this issue the P2 community suggested to override UIService within the 
ProvisioningAgent: 

/**
 * This service forces P2 not to open a validation dialog ("...you're installing
 * untrusted content..."). Otherwise the dialog will block headless RCP
 * applications during install/update operations.
 * 
 * @author e.reiswich
 * @date 2011-02-14
 * 
 */
public class ValidationDialogService extends UIServices {

        private final Logger LOGGER = Logger
                        .getLogger(ValidationDialogService.class.getName());

        @Override
        public AuthenticationInfo getUsernamePassword(String location) {
                // nothing yet
                return null;
        }

        @Override
        public AuthenticationInfo getUsernamePassword(String location,
                        AuthenticationInfo previousInfo) {
                // nothing yet
                return null;
        }

        @Override
        public TrustInfo getTrustInfo(Certificate[][] untrustedChain,
                        String[] unsignedDetail) {
                LOGGER.info("TrustedInfo overridden");
                boolean trustUnsigned = true;
                boolean persistTrust = true;

                Certificate[] trusted = new Certificate[0];
                TrustInfo trustInfo = new TrustInfo(trusted, trustUnsigned,
                                persistTrust);
                return trustInfo;
        }

        /**
         * This method will override the default UIServices instance within the
         * provisioning agent. This will prevent the blocking "...you're 
installing
         * untrusted content..." dialog to appear.
         * 
         * @param agent
         *            The P2 provisioning agent.
         */
        public void bindProvisioningAgent(IProvisioningAgent agent) {
                LOGGER.info("ValidationDialogService: UIServices overridden");
                agent.registerService(UIServices.SERVICE_NAME, this);
        }

}

The IProvisioningAgent instance is retrieved using DS.

Eugen

Am 27.05.2011 um 14:35 schrieb Samuel Wu:

> Hello there,
> When install a feature, we got the following security warning since we didn't 
> sign the feature we built. It's quite annoying. Is there a way to turn it 
> off? Thanks.
> <23497438.gif>
> 
> Best Regards
> 
> Samuel Wu
> _______________________________________________
> p2-dev mailing list
> [email protected]
> https://dev.eclipse.org/mailman/listinfo/p2-dev

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