src/java.base/share/classes/sun/invoke/util/BytecodeName.java

rev 51919 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: dfuchs, alanb

@@ -449,11 +449,11 @@
      * characters are legal in some (or all) names in class files.
      * @param s the proposed bytecode name
      * @return true if the name is non-empty and all of its characters are safe
      */
     public static boolean isSafeBytecodeName(String s) {
-        if (s.length() == 0)  return false;
+        if (s.isEmpty())  return false;
         // check occurrences of each DANGEROUS char
         for (char xc : DANGEROUS_CHARS_A) {
             if (xc == ESCAPE_C)  continue;  // not really that dangerous
             if (s.indexOf(xc) >= 0)  return false;
         }

@@ -474,11 +474,11 @@
     private static boolean looksMangled(String s) {
         return s.charAt(0) == ESCAPE_C;
     }
 
     private static String mangle(String s) {
-        if (s.length() == 0)
+        if (s.isEmpty())
             return NULL_ESCAPE;
 
         // build this lazily, when we first need an escape:
         StringBuilder sb = null;