Upgrade guice to 4.2

Test: m checkbuild
Change-Id: I7df64e3d67f5b6c586ff444f45636cd7b2935c1f
diff --git a/examples/src/example/xml/Contact.java b/examples/src/example/xml/Contact.java
index 160dbdc..a5c1c56 100644
--- a/examples/src/example/xml/Contact.java
+++ b/examples/src/example/xml/Contact.java
@@ -1,5 +1,3 @@
 package example.xml;
 
-public class Contact {
-
-}
+public class Contact {}