diff --git a/querydsl-core/src/main/java/com/mysema/query/group/Group.java b/querydsl-core/src/main/java/com/mysema/query/group/Group.java
index dff748877..58d77051c 100644
--- a/querydsl-core/src/main/java/com/mysema/query/group/Group.java
+++ b/querydsl-core/src/main/java/com/mysema/query/group/Group.java
@@ -11,6 +11,10 @@ import java.util.Set;
 
 import com.mysema.query.types.Expression;
 
+/**
+ * @author sasa
+ *
+ */
 public interface Group {
     
     Object[] toArray();
diff --git a/querydsl-core/src/main/java/com/mysema/query/group/QPair.java b/querydsl-core/src/main/java/com/mysema/query/group/QPair.java
index 5614a2d39..3bc518977 100644
--- a/querydsl-core/src/main/java/com/mysema/query/group/QPair.java
+++ b/querydsl-core/src/main/java/com/mysema/query/group/QPair.java
@@ -70,9 +70,8 @@ public final class QPair<K, V> extends ExpressionBase<Pair<K, V>> implements Fac
     public boolean equals(Object o) {
         if (o == this) {
             return true;
-        } else if (o instanceof QPair) {
-            @SuppressWarnings("rawtypes")
-            QPair other = (QPair) o;
+        } else if (o instanceof QPair<?,?>) {
+            QPair<?,?> other = (QPair<?,?>) o;
             return this.key.equals(other.key) && this.value.equals(other.value);
         } else {
             return false;