Merge pull request #1143 from christ66/JENKINS-21969

[FIXED JENKINS-21969] Performance issue with search box

core/src/main/java/hudson/model/User.java

@@ -378,7 +378,10 @@ public class User extends AbstractModelObject implements AccessControlled, Descr
         Authentication a = Jenkins.getAuthentication();
         if(a instanceof AnonymousAuthenticationToken)
             return null;
-        return get(a.getName());
+
+        // Since we already know this is a name, we can just call getOrCreate with the name directly.
+        String id = a.getName();
+        return getOrCreate(id, id, true);
     }
 
     private static volatile long lastScanned;

core/src/main/java/hudson/search/CollectionSearchIndex.java

@@ -52,13 +52,14 @@ public abstract class CollectionSearchIndex<SMT extends SearchableModelObject> i
 
     public void suggest(String token, List<SearchItem> result) {
          Collection<SMT> items = all();
-        if(UserSearchProperty.isCaseInsensitive()){ 
+        boolean isCaseSensitive = UserSearchProperty.isCaseInsensitive();
+        if(isCaseSensitive){
           token = token.toLowerCase();
         }
         if(items==null)     return;
         for (SMT o : items) {
             String name = getName(o);
-            if(UserSearchProperty.isCaseInsensitive())
+            if(isCaseSensitive)
                 name=name.toLowerCase();
             if(o!=null && name.contains(token))
                 result.add(o);