[23/07/19 05:30:24:024 CST] main ERROR integration.MetadataReportService:  [DUBBO] publishProvider getServiceDescriptor error. providerUrl: dubbo://30.5.121.125:20880/org.apache.dubbo.samples.generic.call.api.HelloService?anyhost=true&application=generic-impl-provider&deprecated=false&dubbo=2.0.2&dynamic=true&generic=true&interface=org.apache.dubbo.samples.generic.call.api.HelloService&methods=*&register=true&release=2.7.3&side=provider, dubbo version: 2.7.3, current host: 30.5.121.125
java.lang.ClassNotFoundException: org.apache.dubbo.samples.generic.call.api.HelloService
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at java.lang.Class.forName0(Native Method)
	at java.lang.Class.forName(Class.java:264)
	at org.apache.dubbo.metadata.integration.MetadataReportService.publishProvider(MetadataReportService.java:97)
	at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:623)
	at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:457)
	at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:415)
	at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:378)
	at org.apache.dubbo.samples.generic.call.GenericImplProvider.main(GenericImplProvider.java:48)

Reproduce by running dubbo-samples-generic-impl
if (CollectionUtils.isNotEmpty(forbid)) {
            List<String> newForbid = new ArrayList<String>();
            for (String serviceName : forbid) {
                if (!serviceName.contains(":") && !serviceName.contains("/")) {
                    for (URL url : subscribed) {
                        if (serviceName.equals(url.getServiceInterface())) {
                            newForbid.add(url.getServiceKey());
                            break;
                        }
                    }
                } else {
                    newForbid.add(serviceName);
                }
            }
            return newForbid;
        }
        return forbid;
    }
    public static URL getEmptyUrl(String service, String category) {
        String group = null;
        String version = null;
        int i = service.indexOf('/');
        if (i > 0) {
            group = service.substring(0, i);
            service = service.substring(i + 1);
        }
        i = service.lastIndexOf(':');
        if (i > 0) {
            version = service.substring(i + 1);
            service = service.substring(0, i);