Code cleanup (#12333)

- removed unused private methods
- removed unused private variables
- removed unnecessary initializations
- removed unnecessary substring(0)
- removed inner assignments
- renamed private methods that started with upper case
- renamed static final variables to use upper case
- converted to use non-deprecated options
- suppressed unavoidable warnings
- divided long Strings to multiple lines
- added missing types
- added missing JavaDoc parameters
- formatting
- updated comments & JavaDocs

1 files changed, 1 insertions, 2 deletions

diff --git a/compatibility-server-gae/src/main/java/com/vaadin/server/GAEVaadinServlet.java b/compatibility-server-gae/src/main/java/com/vaadin/server/GAEVaadinServlet.java
index 9918bac6bc..83a7e3d69c 100644
--- a/compatibility-server-gae/src/main/java/com/vaadin/server/GAEVaadinServlet.java
+++ b/compatibility-server-gae/src/main/java/com/vaadin/server/GAEVaadinServlet.java
@@ -204,9 +204,8 @@ public class GAEVaadinServlet extends VaadinServlet {
         }
 
         boolean locked = false;
-        MemcacheService memcache = null;
         String mutex = MUTEX_BASE + session.getId();
-        memcache = MemcacheServiceFactory.getMemcacheService();
+        MemcacheService memcache = MemcacheServiceFactory.getMemcacheService();
         try {
             // try to get lock
             long started = System.currentTimeMillis();