Examples of java.util.ArrayList.retainAll()

java.util.ArrayList.retainAll()
Retains only the elements in this list that are contained in the specified collection. In other words, removes from this list all of its elements that are not contained in the specified collection. @param c collection containing elements to be retained in this list @return {@code true} if this list changed as a result of the call @throws ClassCastException if the class of an element of this listis incompatible with the specified collection (optional) @throws NullPointerException if this list contains a null element and thespecified collection does not permit null elements (optional), or if the specified collection is null @see Collection#contains(Object)

                        || cpc.getConfs().isEmpty() || cpc.getConfs().contains("*")) {
                    error = "A container already exists for the selected conf of "
                            + "the module descriptor";
                } else {
                    ArrayList list = new ArrayList(cpc.getConfs());
                    list.retainAll(selectedConfigurations);
                    if (!list.isEmpty()) {
                        error = "A container already exists for the selected conf of "
                                + "the module descriptor";
                    }
                }

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        try {
            // 2.
        lNiveis = new SisGrupoAtributoDao().getAtributosOrdenados(grupoAtributo);
        
        // 3. 
        lNiveis.retainAll(item.getItemEstruturaNivelIettns());
        
        
      } catch (ECARException e) {
        this.logger.error(e);
      }

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        try
        {
            List groups = new ArrayList(registry.getGroupsForUser(principal.getName()));


            groups.retainAll(roles);
           
            // if authorization succeeds, set the user's Subject on this invocation context
            // so that the rest of the Thread is executed in the context of the appropriate Subject
            if (groups.size() > 0)
                ContextManagerFactory.getInstance().setCallerSubject(((WSLCPrincipal)principal).getSubject());

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        }
        ArrayList al = new ArrayList();
        Iterator rc = rcs.iterator();
        al.addAll(collect(rc.next()));
        while (rc.hasNext()) {
            al.retainAll(collect(rc.next()));
        }
        return al;
    }


    private ArrayList collect(Object o) {

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    public boolean retainAll(Collection collection) {


        if (fast) {
            synchronized (this) {
                ArrayList temp = (ArrayList) list.clone();
                boolean result = temp.retainAll(collection);
                list = temp;
                return (result);
            }
        } else {
            synchronized (list) {

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  }


  public boolean retainAll(Collection c) {
    checkRealm();
    List list = new ArrayList(wrappedList);
    boolean changed = list.retainAll(c);
    if (changed) {
      ListDiff diff = Diffs.computeListDiff(wrappedList, list);
      wrappedList = list;
      updateTargetList(diff);
      fireListChange(diff);

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    public boolean retainAll(Collection collection) {


        if (fast) {
            synchronized (this) {
                ArrayList temp = (ArrayList) list.clone();
                boolean result = temp.retainAll(collection);
                list = temp;
                return (result);
            }
        } else {
            synchronized (list) {

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                                || cpc.confs.contains("*")) {
                            error = "A container already exists for the selected conf of "
                                    + "the module descriptor";
                        } else {
                            ArrayList list = new ArrayList(cpc.confs);
                            list.retainAll(selectedConfigurations);
                            if (!list.isEmpty()) {
                                error = "A container already exists for the selected conf of "
                                        + "the module descriptor";
                            }
                        }

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      while (iit.hasNext())
      {
        rList.remove(iit.next());
      }
    }
    rList.retainAll(a.getDeletePropositions());
    if (!rList.isEmpty()) return false;
    SchedulabilityChecker c = (VelosoSchedulabilityChecker) checker.clone(); //This should have to be cloned here and below
    boolean result = c.addAction((InstantAction)a, this);
    if (result && a instanceof StartInstantAction)
    {

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    public boolean retainAll(Collection collection) {


        if (fast) {
            synchronized (this) {
                ArrayList temp = (ArrayList) list.clone();
                boolean result = temp.retainAll(collection);
                list = temp;
                return (result);
            }
        } else {
            synchronized (list) {

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