String concatenation as argument to StringBuffer.append
@@ -70,7 +70,7 @@ public class DefaultImprovement implements Improvement {
final StringBuilder labelsBuilder = new StringBuilder();
final Iterator<String> iterator = labels.iterator();
while (iterator.hasNext()) {
- labelsBuilder.append("\"" + Jsoner.escape(iterator.next()) + "\"");
+ labelsBuilder.append("\"").append(Jsoner.escape(iterator.next())).append("\"");
if (iterator.hasNext()) {
labelsBuilder.append(",");
}
