Merge "Replace "StringBuffer" by "StringBuilder"."
diff --git a/src/main/java/org/onap/dmaap/dbcapi/database/DBFieldHandler.java b/src/main/java/org/onap/dmaap/dbcapi/database/DBFieldHandler.java
index 5ec55d4..5cad7ec 100644
--- a/src/main/java/org/onap/dmaap/dbcapi/database/DBFieldHandler.java
+++ b/src/main/java/org/onap/dmaap/dbcapi/database/DBFieldHandler.java
@@ -3,6 +3,8 @@
  * org.onap.dmaap
  * ================================================================================
  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ *
+ * Modifications Copyright (C) 2019 IBM.
  * ================================================================================
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -91,7 +93,7 @@
 				ps.setString(index, null);
 				return;
 			}
-			StringBuffer sb = new StringBuffer();
+			StringBuilder sb = new StringBuilder();
 			String sep = "";
 			for (String s: val) {
 				sb.append(sep).append(fesc(s));