src/java.base/share/classes/java/net/SocketPermission.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

@@ -458,11 +458,11 @@
               throw new
                IllegalArgumentException("invalid host wildcard specification");
             }
             return;
         } else {
-            if (host.length() > 0) {
+            if (!host.isEmpty()) {
                 // see if we are being initialized with an IP address.
                 char ch = host.charAt(0);
                 if (ch == ':' || Character.digit(ch, 16) != -1) {
                     byte ip[] = IPAddressUtil.textToNumericFormatV4(host);
                     if (ip == null) {

@@ -703,12 +703,11 @@
             hdomain = RegisteredDomain.from(b)
                                       .map(RegisteredDomain::name)
                                       .orElse(b);
         }
 
-        return cdomain.length() != 0 && hdomain.length() != 0
-                        && cdomain.equals(hdomain);
+        return !cdomain.isEmpty() && !hdomain.isEmpty() && cdomain.equals(hdomain);
     }
 
     private boolean authorized(String cname, byte[] addr) {
         if (addr.length == 4)
             return authorizedIPv4(cname, addr);