List myList1 = Collections.synchronizedList( new LinkedList(...) );

class LinkedList<E> extends AbstractSequentialList<E>   implements List<E>, Deque<E>, Cloneable, Serializable
{
     // Constructors
     LinkedList()    
     LinkedList(Collection<? extends E> c)    

     // Methods
     boolean add(E e)
     void add(int index, E element)
     boolean addAll(Collection<? extends E> c)
     boolean addAll(int index, Collection<? extends E> c)
     void addFirst(E e) // from Deque
     void addLast(E e) // from Deque
     void clear()
     Object clone()
     boolean contains(Object o)
     Iterator<E> descendingIterator() // from Deque
     E element() // from Deque
     E get(int index)
     E getFirst() // from Deque
     E getLast() // from Deque
     int indexOf(Object o)
     int lastIndexOf(Object o)
     ListIterator<E> listIterator(int index)

     boolean offer(E e) // from Deque
     boolean offerFirst(E e) // from Deque
     boolean offerLast(E e) // from Deque
     E peek() // from Deque
     E peekFirst() // from Deque
     E peekLast() // from Deque
     E poll() // from Deque
     E pollFirst() // from Deque
     E pollLast() // from Deque
     E pop() // from Deque
     void push(E e) // from Deque
     E remove() // from Deque
     E remove(int index)
     boolean remove(Object o)
     E removeFirst() // from Deque
     boolean removeFirstOccurrence(Object o) // from Deque
     E removeLast() // from Deque
     boolean removeLastOccurrence(Object o) // from Deque
     E set(int index, E element)
     int size()
     Spliterator<E> spliterator()
     Object[] toArray()
     <T> T[] toArray(T[] a)

     // Methods inherited from class java.util.AbstractSequentialList
     Iterator<E> iterator()

     // Methods inherited from class java.util.AbstractList
     boolean equals(Object o)
     int hashCode()
     ListIterator<E> listIterator(int index)
     void removeRange(int fromIndex, int toIndex)
     List<E> subList(int fromIndex, int toIndex)

     // Methods inherited from class java.util.AbstractCollection
     boolean containsAll(Collection<?> c)
     boolean isEmpty()
     boolean removeAll(Collection<?> c)
     boolean retainAll(Collection<?> c)
     String toString()

     // Methods inherited from class java.lang.Object
     void finalize()
     Class<?> getClass()
     void notify()
     void notifyAll()
     void wait()
     void wait(long timeout)
     void wait(long timeout, int nanos)

     // Methods inherited from interface java.util.List
     boolean containsAll(Collection<?> c)
     boolean equals(Object o)
     int hashCode()
     boolean isEmpty()
     Iterator<E> iterator()
     ListIterator<E> listIterator()
     ListIterator<E> listIterator(int index)
     boolean removeAll(Collection<?> c)
     void replaceAll(UnaryOperator<E> operator)
     boolean retainAll(Collection<?> c)
     void sort(Comparator<? super E> c)
     List<E> subList(int fromIndex, int toIndex)

     // Methods inherited from interface java.util.Deque
     Iterator<E> iterator()

     // Methods inherited from interface java.util.Collection
     Stream<E> parallelStream()
     boolean removeIf(Predicate<? super E> filter)
     Stream<E> stream()

     // Methods inherited from interface java.lang.Iterable
     void forEach(Consumer<? super T> action)
}