ArrayDeque

lib/android/app/src/main/java/com/reactnativenavigation/viewcontrollers/NavigationController.java

 package com.reactnativenavigation.viewcontrollers;
 
-import java.util.Stack;
+import java.util.ArrayDeque;
 
 public class NavigationController extends ViewController {
-	private Stack<ViewController> childControllers = new Stack<>();
+
+	private ArrayDeque<ViewController> childControllers = new ArrayDeque<>();
 
 	public NavigationController(ViewController... childControllers) {
 		for (ViewController childController : childControllers) {
 		}
 	}
 
-	public Stack<ViewController> getChildControllers() {
+	public ArrayDeque<ViewController> getChildControllers() {
 		return childControllers;
 	}
 

lib/android/app/src/test/java/com/reactnativenavigation/viewcontrollers/NavigationControllerTest.java

 		ViewController c1 = new ViewController();
 		ViewController c2 = new ViewController();
 		ViewController c3 = new ViewController();
-		assertThat(new NavigationController(c1, c2, c3).getChildControllers()).containsExactly(c1, c2, c3);
+		assertThat(new NavigationController(c1, c2, c3).getChildControllers()).containsExactly(c3, c2, c1);
 	}
 
 	@Test
 		ViewController c2 = new ViewController();
 		uut.push(c1);
 		uut.push(c2);
-		assertThat(uut.getChildControllers()).containsExactly(c1, c2);
+		assertThat(uut.getChildControllers()).containsExactly(c2, c1);
 		uut.pop();
 		assertThat(uut.getChildControllers()).containsExactly(c1);
 		uut.pop();