Is there a way to avoid null check before the for-each loop iteration starts? [duplicate]

If possible, you should design your code such that the collections aren't null in the first place.

null collections are bad practice (for this reason); you should use empty collections instead. (eg, Collections.emptyList())

Alternatively, you could make a wrapper class that implements Iterable and takes a collections, and handles a null collection.
You could then write foreach(T obj : new Nullable<T>(list1))

public <T extends Iterable> T nullGuard(T item) {  if (item == null) {    return Collections.EmptyList;  } else {    return item;  }}

or, if saving lines of text is a priority (it shouldn't be)

public <T extends Iterable> T nullGuard(T item) {  return (item == null) ? Collections.EmptyList : item;}

would allow you to write

for (Object obj : nullGuard(list)) {  ...}

Of course, this really just moves the complexity elsewhere.

I guess the right answer is that: there is no way to make it shorter. There are some techniques such as the ones in the comments, but I don't see myself using them. I think it's better to write a "if" block than to use those techniques. and yes.. before anybody mentions it yet again :) "ideally" the code should be desgined such that list should never be a null