diff --git a/querydsl-collections/src/main/java/com/mysema/query/collections/eval/JaninoEvaluator.java b/querydsl-collections/src/main/java/com/mysema/query/collections/eval/JaninoEvaluator.java
index 398d6bbee..a605c2f9d 100644
--- a/querydsl-collections/src/main/java/com/mysema/query/collections/eval/JaninoEvaluator.java
+++ b/querydsl-collections/src/main/java/com/mysema/query/collections/eval/JaninoEvaluator.java
@@ -37,6 +37,7 @@ public class JaninoEvaluator implements Evaluator{
         }
     }
     
+    @SuppressWarnings("unchecked")
     public <T> T evaluate(Object... args) {
         try {
             return (T)ev.evaluate(args);
diff --git a/querydsl-collections/src/main/java/com/mysema/query/collections/support/DefaultIndexCreationTask.java b/querydsl-collections/src/main/java/com/mysema/query/collections/support/DefaultIndexCreationTask.java
index df0c415f5..5ef0d2087 100644
--- a/querydsl-collections/src/main/java/com/mysema/query/collections/support/DefaultIndexCreationTask.java
+++ b/querydsl-collections/src/main/java/com/mysema/query/collections/support/DefaultIndexCreationTask.java
@@ -60,6 +60,7 @@ public class DefaultIndexCreationTask {
             if (key instanceof EConstant){
                 final Object constant = ((EConstant<?>)key).getConstant(); 
                 keyCreator = new Evaluator(){
+                    @SuppressWarnings("unchecked")
                     public <T> T evaluate(Object... args) {
                         return (T)constant;
                     }                
diff --git a/querydsl-collections/src/main/java/com/mysema/query/collections/utils/QueryIteratorUtils.java b/querydsl-collections/src/main/java/com/mysema/query/collections/utils/QueryIteratorUtils.java
index 20b8ef5e7..9e3b949c3 100644
--- a/querydsl-collections/src/main/java/com/mysema/query/collections/utils/QueryIteratorUtils.java
+++ b/querydsl-collections/src/main/java/com/mysema/query/collections/utils/QueryIteratorUtils.java
@@ -122,6 +122,7 @@ public class QueryIteratorUtils {
     
     public static <S> Iterator<S[]> toArrayIterator(Iterator<S> source){
         return IteratorUtils.transformedIterator(source, new Transformer<S,S[]>(){
+            @SuppressWarnings("unchecked")
             public S[] transform(S input) {
                 return toArray(input);
             }