src/java.base/share/classes/java/security/CodeSigner.java

rev 10537 : 8055723[core]: Replace concat String to append in StringBuilder parameters
Contributed-by: Otavio Santana <otaviojava@java.net>

@@ -154,13 +154,13 @@
      *         if present.
      */
     public String toString() {
         StringBuilder sb = new StringBuilder();
         sb.append("(");
-        sb.append("Signer: " + signerCertPath.getCertificates().get(0));
+        sb.append("Signer: ").append(signerCertPath.getCertificates().get(0));
         if (timestamp != null) {
-            sb.append("timestamp: " + timestamp);
+            sb.append("timestamp: ").append(timestamp);
         }
         sb.append(")");
         return sb.toString();
     }