1 files changed, 5 insertions, 5 deletions
diff --git a/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBaseBase.java b/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBaseBase.java
index 041df2deee..609ec6d620 100644
--- a/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBaseBase.java
+++ b/server/src/test/java/com/vaadin/tests/design/DeclarativeTestBaseBase.java
@@ -277,15 +277,15 @@ public abstract class DeclarativeTestBaseBase<T extends Component> {
         }
         Collections.sort(names);
 
-        sb.append("<").append(producedElem.tagName()).append("");
+        sb.append('<').append(producedElem.tagName());
         for (String attrName : names) {
-            sb.append(" ").append(attrName);
+            sb.append(' ').append(attrName);
             if (!booleanAttributes.contains(attrName)) {
-                sb.append("=").append("\'").append(producedElem.attr(attrName))
+                sb.append('=').append("\'").append(producedElem.attr(attrName))
                         .append("\'");
             }
         }
-        sb.append(">");
+        sb.append('>');
         for (Node child : producedElem.childNodes()) {
             if (child instanceof Element) {
                 elementToHtml((Element) child, sb);
@@ -294,7 +294,7 @@ public abstract class DeclarativeTestBaseBase<T extends Component> {
                 sb.append(text.trim());
             }
         }
-        sb.append("</").append(producedElem.tagName()).append(">");
+        sb.append("</").append(producedElem.tagName()).append('>');
         return sb.toString();
     }