Fix nondeterministic list comparison in doAssertEquals for PriorityQueue tests (#1220)

* Fix list comparison in doAssertEquals

* add import List

---------

Co-authored-by: yhlin <yhlin@wirelessprv-10-194-20-3.near.illinois.edu>
Co-authored-by: yhlin <yhlin@vpnduopool-10-251-162-181.near.illinois.edu>

Author: 3 people

test/com/esotericsoftware/kryo/KryoTestCase.java

@@ -40,6 +40,7 @@
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.util.ArrayList;
+import java.util.List;
 
 import org.junit.jupiter.api.BeforeEach;
 
@@ -282,7 +283,18 @@ public <T> T roundTripWithBufferFactory (int length, T object1, BufferFactory sf
 	}
 
 	protected void doAssertEquals (Object object1, Object object2) {
-		assertEquals(arrayToList(object1), arrayToList(object2));
+		Object val1 = arrayToList(object1);
+		Object val2 = arrayToList(object2);
+
+		if (val1 instanceof List && val2 instanceof List) {
+			List<?> list1 = (List<?>) val1;
+			List<?> list2 = (List<?>) val2;
+			assertEquals(list1.size(), list2.size());
+			assertTrue(list1.containsAll(list2));
+			assertTrue(list2.containsAll(list1));
+		} else {
+			assertEquals(val1, val2);
+		}
 	}
 
 	public static Object arrayToList (Object array) {