Please Help me with this ASAP

public static int[] task4(int[] seq) { int[] result = null; /* Your task is to implement this method, * so that running TestUtilities.java will pass all JUnit tests. * * Recall from Week 1's tutorial videos: * 1. No System.out.println statements should appear here. * Instead, an explicit, final `return` statement is placed for you. * 2. No Scanner operations should appear here (e.g., input.nextInt()). * Instead, refer to the input parameters of this method. * 3. Do not re-assign any of the parameter/input variables. */ // Your implementation of this method starts here.

// Do not modify this return statement. return result; } }

/* * Tests related to Task 4 */ @Test public void test_task4_1() { int[] seq = {3, 1, 1, 1, 2, 2, 2, 2}; int[] expected = {1, 3, 3, 1, 4, 2}; assertArrayEquals(expected, Utilities.task4(seq)); }

@Test public void test_task4_2() { int[] seq = {1, 1, 1, 2, 2, 2, 2}; int[] expected = {3, 1, 4, 2}; assertArrayEquals(expected, Utilities.task4(seq)); } @Test public void test_task4_3() { int[] seq = {2, 2, 2, 2, 1, 1, 1}; int[] expected = {4, 2, 3, 1}; assertArrayEquals(expected, Utilities.task4(seq)); } }