fix namesrv endpoint

client/src/main/java/org/apache/rocketmq/client/ClientConfig.java

@@ -178,7 +178,7 @@ public class ClientConfig {
     }
 
     public String getNamesrvAddr() {
-        if (StringUtils.isNotEmpty(namesrvAddr) && NameServerAddressUtils.validateInstanceEndpoint(namesrvAddr.trim())) {
+        if (StringUtils.isNotEmpty(namesrvAddr) && NameServerAddressUtils.NAMESRV_ENDPOINT_PATTERN.matcher(namesrvAddr.trim()).matches()) {
             return NameServerAddressUtils.getNameSrvAddrFromNamesrvEndpoint(namesrvAddr);
         }
         return namesrvAddr;

common/src/main/java/org/apache/rocketmq/common/utils/NameServerAddressUtils.java

@@ -20,6 +20,7 @@ public class NameServerAddressUtils {
     public static final String INSTANCE_PREFIX = "MQ_INST_";
     public static final String INSTANCE_REGEX = INSTANCE_PREFIX + "\\w+_\\w+";
     public static final String ENDPOINT_PREFIX = "(\\w+://|)";
+    public static final Pattern NAMESRV_ENDPOINT_PATTERN = Pattern.compile("^http://.*");
     public static final Pattern INST_ENDPOINT_PATTERN = Pattern.compile("^" + ENDPOINT_PREFIX + INSTANCE_REGEX + "\\..*");
 
     public static String getNameServerAddresses() {