putting data from a LinkedBlockingQueue<> to an array not of type object

Question

I am trying to do copy from a LinkedBlockingQueue to a dataStuff[] data array using .toArray() but I am getting an Exception

Exception in thread "main" java.lang.ClassCastException: [Ljava.lang.Object; cannot be cast to [LdataStuff;
    at Main.main(Main.java:30)

with the following code

public static BlockingQueue<dataStuff> recurseFragments = new LinkedBlockingQueue<dataStuff>();

    public static void main(String args[]) throws IOException
    {
        dataStuff[] data = (dataStuff[]) recurseFragments.toArray();
    }

I understand that its putting the recurseFragments into an object[] before it spits it into the array but why is it that casting does not work and how can I solve this?

Answer 1

Try using the other toArray method

dataStuff[] data = recurseFragments.toArray(new datastuff[0]);

Answer 2

Try this:

dataStuff[] data = recurseFragments.toArray(new dataStuff[0])

Using this signature of toArray you can get the correct type of return.

Answer 3

Because toArray() returns an Object[]

Object[] toArray();

So , you should use toArray(T[] a) instead.

<T> T[] toArray(T[] a);

Use it this way:

recurseFragments.toArray(new datastuff[0]);