src/java.base/share/classes/sun/security/util/SignatureFileVerifier.java

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

@@ -421,11 +421,11 @@
                     e.getMessage();
         }
 
         // This means we have an error in finding weak algorithms, run in
         // debug mode to see permittedAlgs map's values.
-        if (w.length() == 0) {
+        if (w.isEmpty()) {
             return "Unknown Algorithm(s)";
         }
 
         return w;
     }