diff --git a/src/test/java/spoon/test/ctCase/SwitchCaseTest.java b/src/test/java/spoon/test/ctCase/SwitchCaseTest.java
index 1e44aec8247..3a9d6b17936 100644
--- a/src/test/java/spoon/test/ctCase/SwitchCaseTest.java
+++ b/src/test/java/spoon/test/ctCase/SwitchCaseTest.java
@@ -69,7 +69,7 @@ public void insertBeforeStatementInSwitchCaseWithoutException() throws Exception
 	}
 
 	private <T extends CtElement> List<T> elementsOfType(Class<T> type, Factory factory) {
-		return (List) Query.getElements(factory, new TypeFilter<>(type));
+		return Query.getElements(factory, new TypeFilter<>(type));
 	}
 
 	private Factory factoryFor(String packageName, String className) throws Exception {
diff --git a/src/test/java/spoon/test/prettyprinter/QualifiedThisRefTest.java b/src/test/java/spoon/test/prettyprinter/QualifiedThisRefTest.java
index c5b3f44e444..6dfaec148bd 100644
--- a/src/test/java/spoon/test/prettyprinter/QualifiedThisRefTest.java
+++ b/src/test/java/spoon/test/prettyprinter/QualifiedThisRefTest.java
@@ -31,7 +31,6 @@
 import spoon.reflect.factory.Factory;
 import spoon.reflect.reference.CtExecutableReference;
 import spoon.reflect.reference.CtFieldReference;
-import spoon.reflect.declaration.CtImport;
 import spoon.reflect.reference.CtTypeReference;
 import spoon.reflect.visitor.DefaultJavaPrettyPrinter;
 import spoon.reflect.visitor.filter.TypeFilter;
@@ -41,7 +40,6 @@
 
 import java.util.ArrayList;
 import java.util.Arrays;
-import java.util.Collection;
 import java.util.List;
 
 import static org.junit.Assert.assertEquals;
diff --git a/src/test/java/spoon/test/trycatch/TryCatchTest.java b/src/test/java/spoon/test/trycatch/TryCatchTest.java
index f5ea1f17c45..b4461894593 100644
--- a/src/test/java/spoon/test/trycatch/TryCatchTest.java
+++ b/src/test/java/spoon/test/trycatch/TryCatchTest.java
@@ -254,7 +254,7 @@ public void testTryCatchVariableGetType() {
 		assertEquals(1, catchVariable.getMultiTypes().size());
 		assertEquals(IllegalArgumentException.class, catchVariable.getMultiTypes().get(0).getActualClass());
 
-		catchVariable.setMultiTypes(Collections.singletonList((CtTypeReference)factory.Type().createReference(UnsupportedOperationException.class)));
+		catchVariable.setMultiTypes(Collections.singletonList(factory.Type().createReference(UnsupportedOperationException.class)));
 		assertEquals(UnsupportedOperationException.class,catchVariable.getType().getActualClass());
 		//contract setType influences multitypes
 		assertEquals(1, catchVariable.getMultiTypes().size());