decrease non-determinism*

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/CodeAdapter.java

@@ -51,7 +51,7 @@ public void adapt(
     ASTCDCompilationUnit refCD = JavaLoader.loadCD(referenceCD);
     ASTCDCompilationUnit conCD = JavaLoader.loadCD(concreteCD);
 
-    Set<ASTOrdinaryCompilationUnit> adaptedCode = new HashSet<>();
+    Set<ASTOrdinaryCompilationUnit> adaptedCode = new LinkedHashSet<>();
 
     for (String mapping : mappings) {
 

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/handler/BasicUpdateHandler.java

@@ -60,7 +60,7 @@ public BasicUpdateHandler(
   public void handleUpdate(Set<ASTOrdinaryCompilationUnit> javaFiles) {
 
     // Collect elements of each type
-    Set<JavaAstElemCollector> typeElements = new HashSet<>();
+    Set<JavaAstElemCollector> typeElements = new LinkedHashSet<>();
     for (ASTOrdinaryCompilationUnit ast : javaFiles) {
 
       // collect code elements

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/matcher/MatcherHelper.java

@@ -92,7 +92,7 @@ public static String mkTemplateFormInfix(String name, List<ISymbol> infixList) {
   public static List<ISymbol> cleanReferences(String name, List<ISymbol> infixList) {
     List<String> refs =
         infixList.stream().map(ref -> ref.getName().toLowerCase()).collect(Collectors.toList());
-    Map<Integer, ISymbol> refMap = new HashMap<>();
+    Map<Integer, ISymbol> refMap = new LinkedHashMap<>();
 
     for (int i = 0; i < refs.size(); i++) {
       refMap.put(name.toLowerCase().indexOf(refs.get(i)), infixList.get(i));
@@ -189,7 +189,7 @@ public static List<ISymbol> cleanReferences(List<ISymbol> references) {
       return references;
     }
 
-    Set<ISymbol> temps = new HashSet<>(references);
+    Set<ISymbol> temps = new LinkedHashSet<>(references);
     for (ISymbol symbol : temps) {
       for (ISymbol symbol1 : temps) {
         if (!symbol.equals(symbol1) && (matchInfix(symbol.getName(), symbol1.getName()))) {

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/updater/spoonUpdater/SpoonUpdater.java

@@ -26,8 +26,8 @@ public class SpoonUpdater implements CodeUpdater {
   private File outputDir;
   private Launcher launcher;
   private CtModel spoonModel;
-  private final Map<ASTTypeDeclaration, CtType<?>> typeMap = new HashMap<>();
-  private final Map<ASTMethodDeclaration, CtMethod<?>> methodMap = new HashMap<>();
+  private final Map<ASTTypeDeclaration, CtType<?>> typeMap = new LinkedHashMap<>();
+  private final Map<ASTMethodDeclaration, CtMethod<?>> methodMap = new LinkedHashMap<>();
 
   @Override
   public void setCodePath(Path path) {

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/utils/AdapterUtils.java

@@ -21,7 +21,7 @@
 public class AdapterUtils {
 
   public static Set<ASTCDType> getAllCDTypes(ASTCDCompilationUnit cd) {
-    Set<ASTCDType> res = new HashSet<>();
+    Set<ASTCDType> res = new LinkedHashSet<>();
     res.addAll(cd.getCDDefinition().getCDClassesList());
     res.addAll(cd.getCDDefinition().getCDInterfacesList());
     res.addAll(cd.getCDDefinition().getCDEnumsList());

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/utils/JavaLoader.java

@@ -167,7 +167,7 @@ public static void writeFile(Path path, String content) {
    * @return A set of Java files represented as ASTOrdinaryCompilationUnit.
    */
   public static Set<ASTOrdinaryCompilationUnit> readJavaCode(Path directoryPath) {
-    Set<File> res = new HashSet<>();
+    Set<File> res = new LinkedHashSet<>();
     readJavaCode(directoryPath, res);
     return res.stream().map(JavaLoader::loadJava).collect(Collectors.toSet());
   }
@@ -179,7 +179,7 @@ public static Set<ASTOrdinaryCompilationUnit> readJavaCode(Path directoryPath) {
    * @return A set of Java files as File objects.
    */
   public static Set<File> readJavaFile(Path directoryPath) {
-    Set<File> res = new HashSet<>();
+    Set<File> res = new LinkedHashSet<>();
     readJavaCode(directoryPath, res);
     return res;
   }

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/utils/visitors/JavaAstElemCollector.java

@@ -18,7 +18,7 @@
 
 public class JavaAstElemCollector implements JavaDSLVisitor2 {
   private final List<ASTTypeDeclaration> typeDeclarations = new ArrayList<>();
-  private final Map<ASTTypeDeclaration, TypeElementCollector> typeElements = new HashMap<>();
+  private final Map<ASTTypeDeclaration, TypeElementCollector> typeElements = new LinkedHashMap<>();
 
   @Override
   public void visit(ASTClassDeclaration node) {
@@ -109,8 +109,8 @@ class TypeElementCollector implements JavaDSLVisitor2, JavaLightVisitor2 {
   List<ASTFieldDeclaration> fieldDeclarations = new ArrayList<>();
   List<ASTMCType> supertypesDeclarations = new ArrayList<>();
 
-  Map<ASTMethodDeclaration, List<ASTLocalVariableDeclaration>> localVarsMap = new HashMap<>();
-  Map<ASTMethodDeclaration, List<ASTFormalParameter>> formalParamsMap = new HashMap<>();
+  Map<ASTMethodDeclaration, List<ASTLocalVariableDeclaration>> localVarsMap = new LinkedHashMap<>();
+  Map<ASTMethodDeclaration, List<ASTFormalParameter>> formalParamsMap = new LinkedHashMap<>();
 
   @Override
   public void visit(ASTMethodDeclaration node) {

ref-code-adaptation/src/main/java/de/monticore/codeAdaption/validator/CodeValidator.java

@@ -112,7 +112,7 @@ public boolean isValid(ASTCDCompilationUnit refCD, Path refCode) {
     asts.forEach(ast -> runCoCosPhase2(ast, refCD));
 
     // check that all elements matched
-    Set<ASTTypeDeclaration> allType = new HashSet<>();
+    Set<ASTTypeDeclaration> allType = new LinkedHashSet<>();
     for (ASTOrdinaryCompilationUnit ast : asts) {
       JavaAstElemCollector collector = new JavaAstElemCollector();
       JavaDSLTraverser traverser = JavaDSLMill.traverser();