From 44e551bf4ee732af52f934da42ae8296da7d3f6c Mon Sep 17 00:00:00 2001
From: Tillerino <tillmann.gaida@gmail.com>
Date: Sun, 25 Oct 2015 21:49:25 +0100
Subject: [PATCH] Fixed detach for Collections.

---
 .../src/main/java/com/querydsl/jdo/AbstractJDOQuery.java  | 2 +-
 .../test/java/com/querydsl/jdo/JDOQueryStandardTest.java  | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/querydsl-jdo/src/main/java/com/querydsl/jdo/AbstractJDOQuery.java b/querydsl-jdo/src/main/java/com/querydsl/jdo/AbstractJDOQuery.java
index 8e1aaf552..0639189bd 100644
--- a/querydsl-jdo/src/main/java/com/querydsl/jdo/AbstractJDOQuery.java
+++ b/querydsl-jdo/src/main/java/com/querydsl/jdo/AbstractJDOQuery.java
@@ -177,7 +177,7 @@ public abstract class AbstractJDOQuery<T, Q extends AbstractJDOQuery<T, Q>> exte
     @SuppressWarnings("unchecked")
     private <T> T detach(T results) {
         if (results instanceof Collection) {
-            return (T) persistenceManager.detachCopyAll(results);
+            return (T) persistenceManager.detachCopyAll((Collection<?>) results);
         } else {
             return persistenceManager.detachCopy(results);
         }
diff --git a/querydsl-jdo/src/test/java/com/querydsl/jdo/JDOQueryStandardTest.java b/querydsl-jdo/src/test/java/com/querydsl/jdo/JDOQueryStandardTest.java
index 30dee3b26..77413adfc 100644
--- a/querydsl-jdo/src/test/java/com/querydsl/jdo/JDOQueryStandardTest.java
+++ b/querydsl-jdo/src/test/java/com/querydsl/jdo/JDOQueryStandardTest.java
@@ -30,7 +30,9 @@ import com.querydsl.core.types.ParamNotSetException;
 import com.querydsl.core.types.Predicate;
 import com.querydsl.core.types.Projections;
 import com.querydsl.core.types.dsl.Param;
+import com.querydsl.jdo.test.domain.Book;
 import com.querydsl.jdo.test.domain.Product;
+import com.querydsl.jdo.test.domain.QBook;
 import com.querydsl.jdo.test.domain.QProduct;
 import com.querydsl.jdo.test.domain.QStore;
 import com.querydsl.jdo.test.domain.Store;
@@ -185,4 +187,10 @@ public class JDOQueryStandardTest extends AbstractJDOTest {
                 .select(product.name).fetchFirst());
     }
 
+    @Test
+    public void DetatchCollection() {
+        new JDOQuery<Book>(pm, true)
+                .select(QBook.book).from(QBook.book)
+                .fetch();
+    }
 }