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

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

@@ -1957,14 +1957,12 @@
     //
     private static void checkPath(String s, String scheme, String path)
         throws URISyntaxException
     {
         if (scheme != null) {
-            if ((path != null)
-                && ((path.length() > 0) && (path.charAt(0) != '/')))
-                throw new URISyntaxException(s,
-                                             "Relative path in absolute URI");
+            if (path != null && !path.isEmpty() && path.charAt(0) != '/')
+                throw new URISyntaxException(s, "Relative path in absolute URI");
         }
     }
 
     private void appendAuthority(StringBuilder sb,
                                  String authority,

@@ -2161,11 +2159,11 @@
             ru.host = base.host;
             ru.userInfo = base.userInfo;
             ru.port = base.port;
 
             String cp = (child.path == null) ? "" : child.path;
-            if ((cp.length() > 0) && (cp.charAt(0) == '/')) {
+            if (!cp.isEmpty() && cp.charAt(0) == '/') {
                 // 5.2 (5): Child path is absolute
                 ru.path = child.path;
             } else {
                 // 5.2 (6): Resolve relative path
                 ru.path = resolvePath(base.path, cp, base.isAbsolute());

@@ -2185,11 +2183,11 @@
 
     // If the given URI's path is normal then return the URI;
     // o.w., return a new URI containing the normalized path.
     //
     private static URI normalize(URI u) {
-        if (u.isOpaque() || (u.path == null) || (u.path.length() == 0))
+        if (u.isOpaque() || u.path == null || u.path.isEmpty())
             return u;
 
         String np = normalize(u.path);
         if (np == u.path)
             return u;