drools-eclipse/org.drools.eclipse/src/main/java/org/drools/eclipse/DroolsPluginImages.java
public final static void declareRegistryImage(String key, String path) {
        ImageDescriptor desc= ImageDescriptor.getMissingImageDescriptor();
        try {
            desc= ImageDescriptor.createFromURL(makeIconFileURL(path));
        } catch (MalformedURLException e) {
            DroolsEclipsePlugin.log(e);
        }
        imageRegistry.put(key, desc);
    }
public final static void declareRegistryImage(String key, String path) {
        ImageDescriptor desc= ImageDescriptor.getMissingImageDescriptor();
        try {
            desc= ImageDescriptor.createFromURL(makeIconFileURL(path));
        } catch (MalformedURLException e) {
            DroolsEclipsePlugin.log(e);
        }
        imageRegistry.put(key, desc);
    }
Declare an Image in the registry table.
@param key   The key to use when registering the image
@param path  The path where the image can be found. This path is relative to where
this plugin class is found (i.e. typically the packages directory)