infer_clone/infer/tests/codetoanalyze/java/threadsafety/Containers.java

/*
 * Copyright (c) 2017 - present Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

package codetoanalyze.java.checkers;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CopyOnWriteArrayList;

import javax.annotation.concurrent.ThreadSafe;

@ThreadSafe
class Containers {

  List<String> mList;
  Map<String,String> mMap;

  // lists
  void listAddBad1(String s) {
    mList.add(s);
  }

  void listAddBad2(int index, String s) {
    mList.add(index, s);
  }

  void listAddAllBad(Collection<String> c) {
    mList.addAll(c);
  }

  void listClearBad() {
    mList.clear();
  }

  void listRemoveBad1(int index) {
    mList.remove(index);
  }

  void listRemoveBad2(String s) {
    mList.remove(s);
  }

  void listRemoveAllBad(Collection<String> c) {
    mList.removeAll(c);
  }

  void listSetBad(int index, String s) {
    mList.set(index, s);
  }

  void listSubclassWriteBad(ArrayList<String> list, int index) {
    list.remove(index);
  }

  void listReadOk(int index, String s) {
    mList.contains(s);
    mList.get(index);
    mList.isEmpty();
    mList.size();
  }

  void accessSafeListOk(CopyOnWriteArrayList list, int index) {
    list.remove(index);
  }

  // maps
  void mapPutBad(String key, String value) {
    mMap.put(key, value);
  }

  void mapRemoveBad(String key) {
    mMap.remove(key);
  }

  void mapClearBad() {
    mMap.clear();
  }

  void mapPutAllBad(Map<String,String> otherMap) {
    mMap.putAll(otherMap);
  }

  void mapReadsOk(String s) {
    mMap.containsKey(s);
    mMap.containsValue(s);
    mMap.entrySet();
    mMap.hashCode();
    mMap.isEmpty();
    mMap.keySet();
    mMap.size();
    mMap.values();
  }

  // make sure we still warn on subtypes of Map
  void mapSubclassWriteBad(HashMap<String,String> m, String key) {
    m.remove(key);
  }

  synchronized void synchronizedWriteOk1(String key) {
    mMap.remove(key);
  }

  void synchronizedWriteOk2(String key, String lock) {
    synchronized (lock) {
      mMap.remove(key);
    }
  }

  void accessToSychronizedMapsOk(
    String key,
    ConcurrentMap<String,String> concurrentMap,
    ConcurrentHashMap<String,String> concurrentHashMap) {

    concurrentMap.remove(key);
    concurrentHashMap.remove(key);
  }

}