Use List instead of Set to avoid slow hashCode calculations on big Nodes
diff --git a/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionEnumDeclarationTest.java b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionEnumDeclarationTest.java
index 4147c6a..78e6cea 100644
--- a/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionEnumDeclarationTest.java
+++ b/javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionEnumDeclarationTest.java
@@ -124,7 +124,7 @@
     @Test
     void testInternalTypesEmpty() {
         ReflectionEnumDeclaration modifier = (ReflectionEnumDeclaration) typeSolver.solveType("com.github.javaparser.symbolsolver.reflectionmodel.MyModifier");
-        assertEquals(Collections.emptySet(), modifier.internalTypes());
+        assertEquals(Collections.emptyList(), modifier.internalTypes());
     }
 
 }