Merge of (#10563) to Vaadin 7.

Use template strings and log level checks to improve performance when
logging is disabled.

Change-Id: I48d370f523c6361ce8704afc7a0903412b31b2a0

1 files changed, 4 insertions, 4 deletions

diff --git a/server/src/com/vaadin/event/ListenerMethod.java b/server/src/com/vaadin/event/ListenerMethod.java
index 16a8121901..a0ecdc4769 100644
--- a/server/src/com/vaadin/event/ListenerMethod.java
+++ b/server/src/com/vaadin/event/ListenerMethod.java
@@ -91,10 +91,10 @@ public class ListenerMethod implements EventListener, Serializable {
             out.writeObject(name);
             out.writeObject(paramTypes);
         } catch (NotSerializableException e) {
-            getLogger().warning(
-                    "Error in serialization of the application: Class "
-                            + target.getClass().getName()
-                            + " must implement serialization.");
+            getLogger()
+                    .log(Level.WARNING,
+                            "Error in serialization of the application: Class {0} must implement serialization.",
+                            target.getClass().getName());
             throw e;
         }