src/java.base/share/classes/sun/security/ssl/HandshakeMessage.java

rev 10552 : 8055723[core]: Replace concat String to append in StringBuilder parameters
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -1476,11 +1476,11 @@
             if (protocolVersion.v >= ProtocolVersion.TLS12.v) {
                 StringBuilder sb = new StringBuilder();
                 boolean opened = false;
                 for (SignatureAndHashAlgorithm signAlg : algorithms) {
                     if (opened) {
-                        sb.append(", " + signAlg.getAlgorithmName());
+                        sb.append(", ").append(signAlg.getAlgorithmName());
                     } else {
                         sb.append(signAlg.getAlgorithmName());
                         opened = true;
                     }
                 }