import java.util.Arrays; class Test { Object[] myOs; int[][] myIIs; int[] myIs; public boolean equals(Object o) { if (o == null || getClass() != o.getClass()) return false; final Test test = (Test) o; return Arrays.equals(myOs, test.myOs) && Arrays.deepEquals(myIIs, test.myIIs) && Arrays.equals(myIs, test.myIs); } public int hashCode() { int result = Arrays.hashCode(myOs); result = 31 * result + Arrays.deepHashCode(myIIs); result = 31 * result + Arrays.hashCode(myIs); return result; } }