[concurrency-interest] LinkedBlockingQueue does not throw NullPointerException for the method call contains

Szabolcs Ferenczi szabolcs.ferenczi at gmail.com
Sun Apr 15 15:59:07 EDT 2007

I am trying to test LinkedBlockingQueue and I cannot get the null
pointer test for the method contains through:

public class lbqTest {

    LinkedBlockingQueue q;

    public void setUp() {
        q = new LinkedBlockingQueue(3);

    @Test (expected=NullPointerException.class)
    public void seqContainsNull() {

What I receive is this:

There was 1 failure:
1) seqContainsNull(lbqTest.lbqTest)
java.lang.AssertionError: Expected exception: java.lang.NullPointerException

I would expect a successful test according to the documentation of the

What is wrong?

Best Regards,
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