Below snippet will hang in recent code

            Collection<Integer> c1 = new LinkedBlockingQueue<>(); //Not hang with ArrayList
            Random rand = new Random();
            for(int i = -64; i < 64; i++)
                c1.add(-64 + rand.nextInt(128));
            
            int limit = rand.nextInt(256) - 128;
            boolean isUP = rand.nextBoolean();
            Stream<Integer> stream1 = c1.stream();
            AtomicInteger ai = new AtomicInteger(0);
            Iterator<Integer> iter = stream1.peek(t -> ai.updateAndGet(t1 -> t1 + t)).iterator();
            while(iter.hasNext()) //infinite loop here, but stream1.peek(t -> ai.updateAndGet(t1 -> t1 + t)).toArray() works fine
                System.out.println(iter.next());

This caused below lambda tests failed
java/util/stream/Stream/IntegerStreamTest.java
java/util/stream/Stream/StringBuilderStreamTest.java
java/util/stream/Stream/EmployeeStreamTest.java

Test log shows
java.lang.NullPointerException
at com.sun.javatest.regtest.TestNGReporter.getMatcher(TestNGReporter.java:97)
at com.sun.javatest.regtest.TestNGReporter.add(TestNGReporter.java:80)
at com.sun.javatest.regtest.TestNGAction.endAction(TestNGAction.java:127)
at com.sun.javatest.regtest.MainAction.run(MainAction.java:252)
at com.sun.javatest.regtest.RegressionScript.run(RegressionScript.java:146)
at com.sun.javatest.Script.run(Script.java:228)
at com.sun.javatest.DefaultTestRunner.runTest(DefaultTestRunner.java:174)
at com.sun.javatest.DefaultTestRunner.access$100(DefaultTestRunner.java:43)
at com.sun.javatest.DefaultTestRunner$1.run(DefaultTestRunner.java:66)
Which is because hanging cause timeout, and no testng report is available