bug fixed for IPV6

src/main/java/com/alibaba/druid/support/http/StatViewServlet.java

@@ -287,9 +287,15 @@ public class StatViewServlet extends HttpServlet {
         boolean ipV6 = remoteAddress != null && remoteAddress.indexOf(':') != -1;
 
         if (ipV6) {
+            if ("0:0:0:0:0:0:0:1".equals(remoteAddress)) {
+                return true;
+            }
+            
             if (denyList.size() == 0 && allowList.size() == 0) {
                 return true;
             }
+            
+            return false;
         }
 
         IPAddress ipAddress = new IPAddress(remoteAddress);

src/main/java/com/alibaba/druid/util/StringUtils.java

@@ -100,6 +100,9 @@ public class StringUtils {
     }
     
     public static int lowerHashCode(String text) {
+        if (text == null) {
+            return 0;
+        }
 //        return text.toLowerCase().hashCode();
         int h = 0;
         for (int i = 0; i < text.length(); ++i) {