A little javadoc, and trying to get some IntelliJ warnings cleaned

git-svn-id: https://google-guice.googlecode.com/svn/trunk@114 d779f126-a31b-0410-b53b-1d3aecad763e
diff --git a/src/com/google/inject/Scopes.java b/src/com/google/inject/Scopes.java
index d0aa788..b0b634c 100644
--- a/src/com/google/inject/Scopes.java
+++ b/src/com/google/inject/Scopes.java
@@ -53,9 +53,9 @@
 
         private volatile T instance;
 
+        // DCL is safe as of Java 5, which we obviously require
+        @SuppressWarnings("DoubleCheckedLocking")
         public T get() {
-          // Double checked locking improves performance and is safe as of
-          // Java 5.
           if (instance == null) {
             // Use a pretty coarse lock. We don't want to run into deadlocks
             // when two threads try to load circularly-dependent objects.