Started Adding support for JDK21 SequencedCollections.

Implementation is mostly finished. Just need to iron out bugs.
But at this point i want to push activity.

src/test/java/speiger/src/collections/ints/base/BaseIntOrderedSetTest.java

@@ -40,8 +40,8 @@ public abstract class BaseIntOrderedSetTest extends BaseIntCollectionTest
 	public void peekTest() {
 		if(getValidOrderedSetTests().contains(OrderedSetTest.PEEK)) {
 			IntOrderedSet set = create(TEST_ARRAY);
-			Assert.assertEquals(set.firstInt(), 0);
-			Assert.assertEquals(set.lastInt(), 99);
+			Assert.assertEquals(set.getFirstInt(), 0);
+			Assert.assertEquals(set.getLastInt(), 99);
 		}
 	}
 	
@@ -51,12 +51,12 @@ public abstract class BaseIntOrderedSetTest extends BaseIntCollectionTest
 			IntOrderedSet set = create(TEST_ARRAY);
 			for(int i = 0;i<100;i++)
 			{
-				Assert.assertEquals(i, set.pollFirstInt());
+				Assert.assertEquals(i, set.removeFirstInt());
 			}
 			set = create(TEST_ARRAY);
 			for(int i = 99;i>=0;i--)
 			{
-				Assert.assertEquals(i, set.pollLastInt());
+				Assert.assertEquals(i, set.removeLastInt());
 			}
 		}
 	}

src/test/java/speiger/src/collections/ints/base/BaseIntPriorityQueueTest.java

@@ -113,7 +113,6 @@ public abstract class BaseIntPriorityQueueTest extends BaseIntIterableTest
 	}
 	
 	@Test
-	@SuppressWarnings("deprecation")
 	public void testToArray() {
 		if(getValidPriorityQueueTests().contains(PriorityQueueTest.TO_ARRAY)) {
 			IntPriorityQueue queue = create(EMPTY_ARRAY);