}
}
- @Override
- public boolean remove(@Nullable Object o) {
- throw new UnsupportedOperationException();
- }
-
@Override
public boolean addAll(@Nullable Collection<? extends E> c) {
if (c == null) {
}
}
- @Override
- public boolean removeAll(@Nullable Collection<?> c) {
- throw new UnsupportedOperationException();
- }
-
- @Override
- public boolean retainAll(@Nullable Collection<?> c) {
- throw new UnsupportedOperationException();
- }
-
@Override
public void clear() {
fLock.writeLock().lock();