Migrate ReverseStackUsingRecursion tests into ReverseStackTest (#6474)

Author: VickySource

.devcontainer/Dockerfile

@@ -37,16 +37,19 @@ private ReverseStack() {
      *
      * @param stack the stack to reverse; should not be null
      */
-    public static void reverseStack(Stack<Integer> stack) {
-        if (stack.isEmpty()) {
-            return;
-        }
-
-        int element = stack.pop();
-        reverseStack(stack);
-        insertAtBottom(stack, element);
+   public static void reverseStack(Stack<Integer> stack) {
+    if (stack == null) {
+        throw new IllegalArgumentException("Stack cannot be null");
+    }
+    if (stack.isEmpty()) {
+        return;
     }
 
+    int element = stack.pop();
+    reverseStack(stack);
+    insertAtBottom(stack, element);
+}
+
     /**
      * Inserts the specified element at the bottom of the stack.
      *