Simple fixes (#976)

* Should be only the really simple stuff.
* Final cleanups.

src/main/java/io/ebeaninternal/server/cache/DefaultServerCache.java

@@ -276,7 +276,7 @@ public class DefaultServerCache implements ServerCache {
     long trimmedByTTL = 0;
     long trimmedByLRU = 0;
 
-    ArrayList<CacheEntry> activeList = new ArrayList<>();
+    ArrayList<CacheEntry> activeList = new ArrayList<>(map.size());
 
     long idleExpire = System.currentTimeMillis() - (maxIdleSecs * 1000);
     long ttlExpire = System.currentTimeMillis() - (maxSecsToLive * 1000);