result = 31 * result + id.hashCode();
            return result;
        }
    }

    private class PotentialPluginCacheLoader extends CacheLoader<Class<?>, PluginImplementation<?>> {
        private final PluginInspector pluginInspector;

        public PotentialPluginCacheLoader(PluginInspector pluginInspector) {
            this.pluginInspector = pluginInspector;
        }

        @Override

Class <org.gradle.api.internal.plugins.DefaultPluginRegistry$PotentialPluginCacheLoader> is not annotated (directly or via its package) with @org.gradle.api.NonNullApi in (DefaultPluginRegistry.java:0)