api/src/main/java/jakarta/faces/component/_DeltaList.java [201:263]:
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    public Object saveState(FacesContext context)
    {
        int size = super.size();
        if (initialStateMarked())
        {
            Object [] lst = null;
            boolean nullDelta = true;
            if (size > 0)
            {
                lst = new Object[size];
                for (int i = 0; i < size; i++)
                {
                    Object value = super.get(i);
                    if (value instanceof PartialStateHolder holder)
                    {
                        if (!holder.isTransient())
                        {
                            Object attachedState = holder.saveState(context);
                            if (attachedState != null)
                            {
                                nullDelta = false;
                            }
                            lst[i] = new _AttachedDeltaWrapper(value.getClass(), attachedState);
                        }
                    }
                    else
                    {
                        //Full
                        lst[i] = UIComponentBase.saveAttachedState(context, value);
                        if (value instanceof StateHolder || value instanceof List)
                        {
                            nullDelta = false;
                        }
                    }
                }
            }
            else
            {
                lst = emptyObjectArray;
            }
            if (nullDelta)
            {
                return null;
            }
            return lst;
        }
        else
        {
            if (size > 0)
            {
                Object [] lst = new Object[size];
                for (int i = 0; i < size; i++)
                {
                    lst[i] = UIComponentBase.saveAttachedState(context, super.get(i));
                }
                return lst;
            }
            else
            {
                return emptyObjectArray;
            }
        }
    }
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api/src/main/java/jakarta/faces/component/behavior/_DeltaList.java [204:266]:
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    public Object saveState(FacesContext context)
    {
        int size = super.size();
        if (initialStateMarked())
        {
            Object [] lst = null;
            boolean nullDelta = true;
            if (size > 0)
            {
                lst = new Object[size];
                for (int i = 0; i < size; i++)
                {
                    Object value = super.get(i);
                    if (value instanceof PartialStateHolder holder)
                    {
                        if (!holder.isTransient())
                        {
                            Object attachedState = holder.saveState(context);
                            if (attachedState != null)
                            {
                                nullDelta = false;
                            }
                            lst[i] = new _AttachedDeltaWrapper(value.getClass(), attachedState);
                        }
                    }
                    else
                    {
                        //Full
                        lst[i] = UIComponentBase.saveAttachedState(context, value);
                        if (value instanceof StateHolder || value instanceof List)
                        {
                            nullDelta = false;
                        }
                    }
                }
            }
            else
            {
                lst = emptyObjectArray;
            }
            if (nullDelta)
            {
                return null;
            }
            return lst;
        }
        else
        {
            if (size > 0)
            {
                Object [] lst = new Object[size];
                for (int i = 0; i < size; i++)
                {
                    lst[i] = UIComponentBase.saveAttachedState(context, super.get(i));
                }
                return lst;
            }
            else
            {
                return emptyObjectArray;
            }
        }
    }
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