supportSignedBundles = "true".equals(FrameworkProperties.getProperty(SIGNED_BUNDLE_SUPPORT));
	public void addHooks(HookRegistry hookRegistry) {		supportSignedBundles = "true".equals(FrameworkProperties.getProperty(SIGNED_BUNDLE_SUPPORT)); //$NON-NLS-1$		hookRegistry.addAdaptorHook(this);		if (supportSignedBundles) {			hookRegistry.addStorageHook(new SignedStorageHook());			hookRegistry.addBundleFileWrapperFactoryHook(this);		}	}