コード例 #1
0
  private void validateClass(Class<?> source, ValidationProblemCollector problems) {
    int modifiers = source.getModifiers();

    if (Modifier.isInterface(modifiers)) {
      problems.add("Must be a class, not an interface");
    }

    if (source.getEnclosingClass() != null) {
      if (Modifier.isStatic(modifiers)) {
        if (Modifier.isPrivate(modifiers)) {
          problems.add("Class cannot be private");
        }
      } else {
        problems.add("Enclosed classes must be static and non private");
      }
    }

    Constructor<?>[] constructors = source.getDeclaredConstructors();
    for (Constructor<?> constructor : constructors) {
      if (constructor.getParameterTypes().length > 0) {
        problems.add("Cannot declare a constructor that takes arguments");
        break;
      }
    }

    Field[] fields = source.getDeclaredFields();
    for (Field field : fields) {
      int fieldModifiers = field.getModifiers();
      if (!field.isSynthetic()
          && !(Modifier.isStatic(fieldModifiers) && Modifier.isFinal(fieldModifiers))) {
        problems.add(field, "Fields must be static final.");
      }
    }
  }
コード例 #2
0
ファイル: JavaAdapter.java プロジェクト: RobIncAMDSPhD/pad
 static Method[] getOverridableMethods(Class c) {
   ArrayList<Method> list = new ArrayList<Method>();
   HashSet<String> skip = new HashSet<String>();
   while (c != null) {
     Method[] methods = c.getDeclaredMethods();
     for (int i = 0; i < methods.length; i++) {
       String methodKey =
           methods[i].getName() + getMethodSignature(methods[i], methods[i].getParameterTypes());
       if (skip.contains(methodKey)) continue; // skip this method
       int mods = methods[i].getModifiers();
       if (Modifier.isStatic(mods)) continue;
       if (Modifier.isFinal(mods)) {
         // Make sure we don't add a final method to the list
         // of overridable methods.
         skip.add(methodKey);
         continue;
       }
       if (Modifier.isPublic(mods) || Modifier.isProtected(mods)) {
         list.add(methods[i]);
         skip.add(methodKey);
       }
     }
     c = c.getSuperclass();
   }
   return list.toArray(new Method[list.size()]);
 }
コード例 #3
0
 static Method[] getOverridableMethods(Class c) {
   ArrayList list = new ArrayList();
   while (c != null) {
     Method[] methods = c.getDeclaredMethods();
     for (int i = 0; i < methods.length; i++) {
       int mods = methods[i].getModifiers();
       if (Modifier.isStatic(mods) || Modifier.isFinal(mods)) continue;
       if (Modifier.isPublic(mods) || Modifier.isProtected(mods)) list.add(methods[i]);
     }
     c = c.getSuperclass();
   }
   return (Method[]) list.toArray(new Method[list.size()]);
 }
コード例 #4
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
 private static void appendOverridableMethods(
     Class<?> c, ArrayList<Method> list, HashSet<String> skip) {
   Method[] methods = c.getDeclaredMethods();
   for (int i = 0; i < methods.length; i++) {
     String methodKey =
         methods[i].getName() + getMethodSignature(methods[i], methods[i].getParameterTypes());
     if (skip.contains(methodKey)) continue; // skip this method
     int mods = methods[i].getModifiers();
     if (Modifier.isStatic(mods)) continue;
     if (Modifier.isFinal(mods)) {
       // Make sure we don't add a final method to the list
       // of overridable methods.
       skip.add(methodKey);
       continue;
     }
     if (Modifier.isPublic(mods) || Modifier.isProtected(mods)) {
       list.add(methods[i]);
       skip.add(methodKey);
     }
   }
 }
コード例 #5
0
  @SuppressWarnings("unchecked")
  LDAPObjectHandler(final Class<T> type) throws LDAPPersistException {
    this.type = type;

    final Class<? super T> superclassType = type.getSuperclass();
    if (superclassType == null) {
      superclassHandler = null;
    } else {
      final LDAPObject superclassAnnotation = superclassType.getAnnotation(LDAPObject.class);
      if (superclassAnnotation == null) {
        superclassHandler = null;
      } else {
        superclassHandler = new LDAPObjectHandler(superclassType);
      }
    }

    final TreeMap<String, FieldInfo> fields = new TreeMap<String, FieldInfo>();
    final TreeMap<String, GetterInfo> getters = new TreeMap<String, GetterInfo>();
    final TreeMap<String, SetterInfo> setters = new TreeMap<String, SetterInfo>();

    ldapObject = type.getAnnotation(LDAPObject.class);
    if (ldapObject == null) {
      throw new LDAPPersistException(ERR_OBJECT_HANDLER_OBJECT_NOT_ANNOTATED.get(type.getName()));
    }

    final LinkedHashMap<String, String> objectClasses = new LinkedHashMap<String, String>(10);

    final String oc = ldapObject.structuralClass();
    if (oc.length() == 0) {
      structuralClass = getUnqualifiedClassName(type);
    } else {
      structuralClass = oc;
    }

    final StringBuilder invalidReason = new StringBuilder();
    if (PersistUtils.isValidLDAPName(structuralClass, invalidReason)) {
      objectClasses.put(toLowerCase(structuralClass), structuralClass);
    } else {
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_INVALID_STRUCTURAL_CLASS.get(
              type.getName(), structuralClass, invalidReason.toString()));
    }

    auxiliaryClasses = ldapObject.auxiliaryClass();
    for (final String auxiliaryClass : auxiliaryClasses) {
      if (PersistUtils.isValidLDAPName(auxiliaryClass, invalidReason)) {
        objectClasses.put(toLowerCase(auxiliaryClass), auxiliaryClass);
      } else {
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_AUXILIARY_CLASS.get(
                type.getName(), auxiliaryClass, invalidReason.toString()));
      }
    }

    superiorClasses = ldapObject.superiorClass();
    for (final String superiorClass : superiorClasses) {
      if (PersistUtils.isValidLDAPName(superiorClass, invalidReason)) {
        objectClasses.put(toLowerCase(superiorClass), superiorClass);
      } else {
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_SUPERIOR_CLASS.get(
                type.getName(), superiorClass, invalidReason.toString()));
      }
    }

    if (superclassHandler != null) {
      for (final String s : superclassHandler.objectClassAttribute.getValues()) {
        objectClasses.put(toLowerCase(s), s);
      }
    }

    objectClassAttribute = new Attribute("objectClass", objectClasses.values());

    final String parentDNStr = ldapObject.defaultParentDN();
    try {
      defaultParentDN = new DN(parentDNStr);
    } catch (LDAPException le) {
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_INVALID_DEFAULT_PARENT.get(
              type.getName(), parentDNStr, le.getMessage()),
          le);
    }

    final String postDecodeMethodName = ldapObject.postDecodeMethod();
    if (postDecodeMethodName.length() > 0) {
      try {
        postDecodeMethod = type.getDeclaredMethod(postDecodeMethodName);
        postDecodeMethod.setAccessible(true);
      } catch (Exception e) {
        debugException(e);
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_POST_DECODE_METHOD.get(
                type.getName(), postDecodeMethodName, getExceptionMessage(e)),
            e);
      }
    } else {
      postDecodeMethod = null;
    }

    final String postEncodeMethodName = ldapObject.postEncodeMethod();
    if (postEncodeMethodName.length() > 0) {
      try {
        postEncodeMethod = type.getDeclaredMethod(postEncodeMethodName, Entry.class);
        postEncodeMethod.setAccessible(true);
      } catch (Exception e) {
        debugException(e);
        throw new LDAPPersistException(
            ERR_OBJECT_HANDLER_INVALID_POST_ENCODE_METHOD.get(
                type.getName(), postEncodeMethodName, getExceptionMessage(e)),
            e);
      }
    } else {
      postEncodeMethod = null;
    }

    try {
      constructor = type.getDeclaredConstructor();
      constructor.setAccessible(true);
    } catch (Exception e) {
      debugException(e);
      throw new LDAPPersistException(
          ERR_OBJECT_HANDLER_NO_DEFAULT_CONSTRUCTOR.get(type.getName()), e);
    }

    Field tmpDNField = null;
    Field tmpEntryField = null;
    final LinkedList<FieldInfo> tmpRFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpAAFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpCAFilterFields = new LinkedList<FieldInfo>();
    final LinkedList<FieldInfo> tmpRDNFields = new LinkedList<FieldInfo>();
    for (final Field f : type.getDeclaredFields()) {
      final LDAPField fieldAnnotation = f.getAnnotation(LDAPField.class);
      final LDAPDNField dnFieldAnnotation = f.getAnnotation(LDAPDNField.class);
      final LDAPEntryField entryFieldAnnotation = f.getAnnotation(LDAPEntryField.class);

      if (fieldAnnotation != null) {
        f.setAccessible(true);

        final FieldInfo fieldInfo = new FieldInfo(f, type);
        final String attrName = toLowerCase(fieldInfo.getAttributeName());
        if (fields.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), fieldInfo.getAttributeName()));
        } else {
          fields.put(attrName, fieldInfo);
        }

        switch (fieldInfo.getFilterUsage()) {
          case REQUIRED:
            tmpRFilterFields.add(fieldInfo);
            break;
          case ALWAYS_ALLOWED:
            tmpAAFilterFields.add(fieldInfo);
            break;
          case CONDITIONALLY_ALLOWED:
            tmpCAFilterFields.add(fieldInfo);
            break;
          case EXCLUDED:
          default:
            break;
        }

        if (fieldInfo.includeInRDN()) {
          tmpRDNFields.add(fieldInfo);
        }
      }

      if (dnFieldAnnotation != null) {
        f.setAccessible(true);

        if (fieldAnnotation != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_FIELD_ANNOTATIONS.get(
                  type.getName(), "LDAPField", "LDAPDNField", f.getName()));
        }

        if (tmpDNField != null) {
          throw new LDAPPersistException(ERR_OBJECT_HANDLER_MULTIPLE_DN_FIELDS.get(type.getName()));
        }

        final int modifiers = f.getModifiers();
        if (Modifier.isFinal(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_DN_FIELD_FINAL.get(f.getName(), type.getName()));
        } else if (Modifier.isStatic(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_DN_FIELD_STATIC.get(f.getName(), type.getName()));
        }

        final Class<?> fieldType = f.getType();
        if (fieldType.equals(String.class)) {
          tmpDNField = f;
        } else {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_INVALID_DN_FIELD_TYPE.get(
                  type.getName(), f.getName(), fieldType.getName()));
        }
      }

      if (entryFieldAnnotation != null) {
        f.setAccessible(true);

        if (fieldAnnotation != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_FIELD_ANNOTATIONS.get(
                  type.getName(), "LDAPField", "LDAPEntryField", f.getName()));
        }

        if (tmpEntryField != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_MULTIPLE_ENTRY_FIELDS.get(type.getName()));
        }

        final int modifiers = f.getModifiers();
        if (Modifier.isFinal(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ENTRY_FIELD_FINAL.get(f.getName(), type.getName()));
        } else if (Modifier.isStatic(modifiers)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ENTRY_FIELD_STATIC.get(f.getName(), type.getName()));
        }

        final Class<?> fieldType = f.getType();
        if (fieldType.equals(ReadOnlyEntry.class)) {
          tmpEntryField = f;
        } else {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_INVALID_ENTRY_FIELD_TYPE.get(
                  type.getName(), f.getName(), fieldType.getName()));
        }
      }
    }

    dnField = tmpDNField;
    entryField = tmpEntryField;
    requiredFilterFields = Collections.unmodifiableList(tmpRFilterFields);
    alwaysAllowedFilterFields = Collections.unmodifiableList(tmpAAFilterFields);
    conditionallyAllowedFilterFields = Collections.unmodifiableList(tmpCAFilterFields);
    rdnFields = Collections.unmodifiableList(tmpRDNFields);

    final LinkedList<GetterInfo> tmpRFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpAAFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpCAFilterGetters = new LinkedList<GetterInfo>();
    final LinkedList<GetterInfo> tmpRDNGetters = new LinkedList<GetterInfo>();
    for (final Method m : type.getDeclaredMethods()) {
      final LDAPGetter getter = m.getAnnotation(LDAPGetter.class);
      final LDAPSetter setter = m.getAnnotation(LDAPSetter.class);

      if (getter != null) {
        m.setAccessible(true);

        if (setter != null) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_CONFLICTING_METHOD_ANNOTATIONS.get(
                  type.getName(), "LDAPGetter", "LDAPSetter", m.getName()));
        }

        final GetterInfo methodInfo = new GetterInfo(m, type);
        final String attrName = toLowerCase(methodInfo.getAttributeName());
        if (fields.containsKey(attrName) || getters.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), methodInfo.getAttributeName()));
        } else {
          getters.put(attrName, methodInfo);
        }

        switch (methodInfo.getFilterUsage()) {
          case REQUIRED:
            tmpRFilterGetters.add(methodInfo);
            break;
          case ALWAYS_ALLOWED:
            tmpAAFilterGetters.add(methodInfo);
            break;
          case CONDITIONALLY_ALLOWED:
            tmpCAFilterGetters.add(methodInfo);
            break;
          case EXCLUDED:
          default:
            // No action required.
            break;
        }

        if (methodInfo.includeInRDN()) {
          tmpRDNGetters.add(methodInfo);
        }
      }

      if (setter != null) {
        m.setAccessible(true);

        final SetterInfo methodInfo = new SetterInfo(m, type);
        final String attrName = toLowerCase(methodInfo.getAttributeName());
        if (fields.containsKey(attrName) || setters.containsKey(attrName)) {
          throw new LDAPPersistException(
              ERR_OBJECT_HANDLER_ATTR_CONFLICT.get(type.getName(), methodInfo.getAttributeName()));
        } else {
          setters.put(attrName, methodInfo);
        }
      }
    }

    requiredFilterGetters = Collections.unmodifiableList(tmpRFilterGetters);
    alwaysAllowedFilterGetters = Collections.unmodifiableList(tmpAAFilterGetters);
    conditionallyAllowedFilterGetters = Collections.unmodifiableList(tmpCAFilterGetters);

    rdnGetters = Collections.unmodifiableList(tmpRDNGetters);
    if (rdnFields.isEmpty() && rdnGetters.isEmpty()) {
      throw new LDAPPersistException(ERR_OBJECT_HANDLER_NO_RDN_DEFINED.get(type.getName()));
    }

    fieldMap = Collections.unmodifiableMap(fields);
    getterMap = Collections.unmodifiableMap(getters);
    setterMap = Collections.unmodifiableMap(setters);

    final TreeSet<String> attrSet = new TreeSet<String>();
    final TreeSet<String> lazySet = new TreeSet<String>();
    if (ldapObject.requestAllAttributes()) {
      attrSet.add("*");
      attrSet.add("+");
    } else {
      for (final FieldInfo i : fields.values()) {
        if (i.lazilyLoad()) {
          lazySet.add(i.getAttributeName());
        } else {
          attrSet.add(i.getAttributeName());
        }
      }

      for (final SetterInfo i : setters.values()) {
        attrSet.add(i.getAttributeName());
      }
    }
    attributesToRequest = new String[attrSet.size()];
    attrSet.toArray(attributesToRequest);

    lazilyLoadedAttributes = new String[lazySet.size()];
    lazySet.toArray(lazilyLoadedAttributes);
  }
コード例 #6
0
 private static Object createPlaceholder(Class<?> clazz, InvocationSequence invocationSequence) {
   return !Modifier.isFinal(clazz.getModifiers())
       ? createProxy(new ProxyArgument(clazz, invocationSequence), clazz, false)
       : createArgumentPlaceholder(clazz);
 }
コード例 #7
0
ファイル: JavaAdapter.java プロジェクト: sq001/aurora-project
  public static byte[] createAdapterCode(
      ObjToIntMap functionNames,
      String adapterName,
      Class<?> superClass,
      Class<?>[] interfaces,
      String scriptClassName) {
    ClassFileWriter cfw = new ClassFileWriter(adapterName, superClass.getName(), "<adapter>");
    cfw.addField(
        "factory",
        "Laurora/javascript/ContextFactory;",
        (short) (ClassFileWriter.ACC_PUBLIC | ClassFileWriter.ACC_FINAL));
    cfw.addField(
        "delegee",
        "Laurora/javascript/Scriptable;",
        (short) (ClassFileWriter.ACC_PUBLIC | ClassFileWriter.ACC_FINAL));
    cfw.addField(
        "self",
        "Laurora/javascript/Scriptable;",
        (short) (ClassFileWriter.ACC_PUBLIC | ClassFileWriter.ACC_FINAL));
    int interfacesCount = interfaces == null ? 0 : interfaces.length;
    for (int i = 0; i < interfacesCount; i++) {
      if (interfaces[i] != null) cfw.addInterface(interfaces[i].getName());
    }

    String superName = superClass.getName().replace('.', '/');
    Constructor<?>[] ctors = superClass.getConstructors();
    for (Constructor<?> ctor : ctors) {
      generateCtor(cfw, adapterName, superName, ctor);
    }
    generateSerialCtor(cfw, adapterName, superName);
    if (scriptClassName != null) {
      generateEmptyCtor(cfw, adapterName, superName, scriptClassName);
    }

    ObjToIntMap generatedOverrides = new ObjToIntMap();
    ObjToIntMap generatedMethods = new ObjToIntMap();

    // generate methods to satisfy all specified interfaces.
    for (int i = 0; i < interfacesCount; i++) {
      Method[] methods = interfaces[i].getMethods();
      for (int j = 0; j < methods.length; j++) {
        Method method = methods[j];
        int mods = method.getModifiers();
        if (Modifier.isStatic(mods) || Modifier.isFinal(mods)) {
          continue;
        }
        String methodName = method.getName();
        Class<?>[] argTypes = method.getParameterTypes();
        if (!functionNames.has(methodName)) {
          try {
            superClass.getMethod(methodName, argTypes);
            // The class we're extending implements this method and
            // the JavaScript object doesn't have an override. See
            // bug 61226.
            continue;
          } catch (NoSuchMethodException e) {
            // Not implemented by superclass; fall through
          }
        }
        // make sure to generate only one instance of a particular
        // method/signature.
        String methodSignature = getMethodSignature(method, argTypes);
        String methodKey = methodName + methodSignature;
        if (!generatedOverrides.has(methodKey)) {
          generateMethod(cfw, adapterName, methodName, argTypes, method.getReturnType(), true);
          generatedOverrides.put(methodKey, 0);
          generatedMethods.put(methodName, 0);
        }
      }
    }

    // Now, go through the superclass's methods, checking for abstract
    // methods or additional methods to override.

    // generate any additional overrides that the object might contain.
    Method[] methods = getOverridableMethods(superClass);
    for (int j = 0; j < methods.length; j++) {
      Method method = methods[j];
      int mods = method.getModifiers();
      // if a method is marked abstract, must implement it or the
      // resulting class won't be instantiable. otherwise, if the object
      // has a property of the same name, then an override is intended.
      boolean isAbstractMethod = Modifier.isAbstract(mods);
      String methodName = method.getName();
      if (isAbstractMethod || functionNames.has(methodName)) {
        // make sure to generate only one instance of a particular
        // method/signature.
        Class<?>[] argTypes = method.getParameterTypes();
        String methodSignature = getMethodSignature(method, argTypes);
        String methodKey = methodName + methodSignature;
        if (!generatedOverrides.has(methodKey)) {
          generateMethod(cfw, adapterName, methodName, argTypes, method.getReturnType(), true);
          generatedOverrides.put(methodKey, 0);
          generatedMethods.put(methodName, 0);

          // if a method was overridden, generate a "super$method"
          // which lets the delegate call the superclass' version.
          if (!isAbstractMethod) {
            generateSuper(
                cfw,
                adapterName,
                superName,
                methodName,
                methodSignature,
                argTypes,
                method.getReturnType());
          }
        }
      }
    }

    // Generate Java methods for remaining properties that are not
    // overrides.
    ObjToIntMap.Iterator iter = new ObjToIntMap.Iterator(functionNames);
    for (iter.start(); !iter.done(); iter.next()) {
      String functionName = (String) iter.getKey();
      if (generatedMethods.has(functionName)) continue;
      int length = iter.getValue();
      Class<?>[] parms = new Class[length];
      for (int k = 0; k < length; k++) parms[k] = ScriptRuntime.ObjectClass;
      generateMethod(cfw, adapterName, functionName, parms, ScriptRuntime.ObjectClass, false);
    }
    return cfw.toByteArray();
  }
コード例 #8
0
ファイル: TypeUniverse.java プロジェクト: smarr/graal
  public TypeUniverse() {
    Providers providers =
        Graal.getRequiredCapability(RuntimeProvider.class).getHostBackend().getProviders();
    metaAccess = providers.getMetaAccess();
    constantReflection = providers.getConstantReflection();
    snippetReflection = Graal.getRequiredCapability(SnippetReflectionProvider.class);
    Unsafe theUnsafe = null;
    try {
      theUnsafe = Unsafe.getUnsafe();
    } catch (Exception e) {
      try {
        Field theUnsafeField = Unsafe.class.getDeclaredField("theUnsafe");
        theUnsafeField.setAccessible(true);
        theUnsafe = (Unsafe) theUnsafeField.get(null);
      } catch (Exception e1) {
        throw (InternalError) new InternalError("unable to initialize unsafe").initCause(e1);
      }
    }
    unsafe = theUnsafe;

    Class<?>[] initialClasses = {
      void.class,
      boolean.class,
      byte.class,
      short.class,
      char.class,
      int.class,
      float.class,
      long.class,
      double.class,
      Object.class,
      Class.class,
      ClassLoader.class,
      String.class,
      Serializable.class,
      Cloneable.class,
      Test.class,
      TestMetaAccessProvider.class,
      List.class,
      Collection.class,
      Map.class,
      Queue.class,
      HashMap.class,
      LinkedHashMap.class,
      IdentityHashMap.class,
      AbstractCollection.class,
      AbstractList.class,
      ArrayList.class
    };
    for (Class<?> c : initialClasses) {
      addClass(c);
    }
    for (Field f : Constant.class.getDeclaredFields()) {
      int mods = f.getModifiers();
      if (f.getType() == Constant.class
          && Modifier.isPublic(mods)
          && Modifier.isStatic(mods)
          && Modifier.isFinal(mods)) {
        try {
          Constant c = (Constant) f.get(null);
          if (c != null) {
            constants.add(c);
          }
        } catch (Exception e) {
        }
      }
    }
    for (Class<?> c : classes) {
      if (c != void.class && !c.isArray()) {
        constants.add(snippetReflection.forObject(Array.newInstance(c, 42)));
      }
    }
    constants.add(snippetReflection.forObject(new ArrayList<>()));
    constants.add(snippetReflection.forObject(new IdentityHashMap<>()));
    constants.add(snippetReflection.forObject(new LinkedHashMap<>()));
    constants.add(snippetReflection.forObject(new TreeMap<>()));
    constants.add(snippetReflection.forObject(new ArrayDeque<>()));
    constants.add(snippetReflection.forObject(new LinkedList<>()));
    constants.add(snippetReflection.forObject("a string"));
    constants.add(snippetReflection.forObject(42));
    constants.add(snippetReflection.forObject(String.class));
    constants.add(snippetReflection.forObject(String[].class));
  }