--- a/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeSystemParser.java	Fri Oct 23 20:23:00 2015 +0200
+++ b/truffle/com.oracle.truffle.dsl.processor/src/com/oracle/truffle/dsl/processor/parser/TypeSystemParser.java	Mon Oct 26 13:28:19 2015 +0100
@@ -32,6 +32,7 @@
 import com.oracle.truffle.dsl.processor.model.TypeCastData;
 import com.oracle.truffle.dsl.processor.model.TypeCheckData;
 import com.oracle.truffle.dsl.processor.model.TypeSystemData;
+
 import java.lang.annotation.Annotation;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -40,6 +41,7 @@
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+
 import javax.lang.model.element.AnnotationMirror;
 import javax.lang.model.element.Element;
 import javax.lang.model.element.ExecutableElement;
@@ -60,6 +62,14 @@
         return TypeSystem.class;
     }
 
+    /**
+     * @see "https://bugs.openjdk.java.net/browse/JDK-8039214"
+     */
+    private static List<Element> newElementList(List<? extends Element> src) {
+        List<Element> workaround = new ArrayList<>(src);
+        return workaround;
+    }
+
     @Override
     protected TypeSystemData parse(Element element, AnnotationMirror mirror) {
         TypeElement templateType = (TypeElement) element;
@@ -94,7 +104,7 @@
 
         verifyExclusiveMethodAnnotation(typeSystem, TypeCast.class, TypeCheck.class);
 
-        List<Element> elements = new ArrayList<>(context.getEnvironment().getElementUtils().getAllMembers(templateType));
+        List<Element> elements = newElementList(context.getEnvironment().getElementUtils().getAllMembers(templateType));
         List<ImplicitCastData> implicitCasts = new ImplicitCastParser(context, typeSystem).parse(elements);
         List<TypeCastData> casts = new TypeCastParser(context, typeSystem).parse(elements);
         List<TypeCheckData> checks = new TypeCheckParser(context, typeSystem).parse(elements);