classExtensionDoc = new ClassExtensionDoc(pluginId, classDoc);
                plugins.put(pluginId, classExtensionDoc);
            }
            classExtensionDoc.getMixinClasses().add(model.getClassDoc(mixin.getMixinClass()));
        }
        for (ExtensionMetaData extension : classDoc.getExtensionMetaData().getExtensionClasses()) {
            String pluginId = extension.getPluginId();