--- old/jdk/src/java.desktop/windows/native/libawt/windows/awt_Component.cpp	2015-12-16 14:33:45.773356050 +0100
+++ new/jdk/src/java.desktop/windows/native/libawt/windows/awt_Component.cpp	2015-12-16 14:33:45.609356047 +0100
@@ -6917,9 +6917,9 @@
 {
     TRY;
 
-    return (jboolean)AwtToolkit::GetInstance().SyncCall(
+    return (jboolean)(AwtToolkit::GetInstance().SyncCall(
         (void *(*)(void *))AwtComponent::_NativeHandlesWheelScrolling,
-        env->NewGlobalRef(self));
+        env->NewGlobalRef(self)) != NULL);
     // global ref is deleted in _NativeHandlesWheelScrolling
 
     CATCH_BAD_ALLOC_RET(NULL);
@@ -6938,9 +6938,9 @@
 
     jobject selfGlobalRef = env->NewGlobalRef(self);
 
-    return (jboolean)AwtToolkit::GetInstance().SyncCall(
+    return (jboolean)(AwtToolkit::GetInstance().SyncCall(
         (void*(*)(void*))AwtComponent::_IsObscured,
-        (void *)selfGlobalRef);
+        (void *)selfGlobalRef) != NULL);
     // selfGlobalRef is deleted in _IsObscured
 
     CATCH_BAD_ALLOC_RET(NULL);