Strange UnsupportedOperationException when calling list.remove(0)

Question

I have this method which takes a varargs of Strings, creates a List out of it, and then tries to remove the first element of the list.

public void importFrom(Str         


        

Answer 1

Arrays.asList() returns instance of Arrays.ArrayList that that is unmodifireable list because it is a simple wrapper over array. You cannot remove elements from array.

This is written in javadoc of asList():

Returns a fixed-size list backed by the specified array.