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- public class ArrayCloning {
-
- public static void main(String[] args) {
- ArrayCloning ArrayCloning = new ArrayCloning();
- Integer[] clonedStaticField = ArrayCloning.clone1();
- checkIdentical(clonedStaticField,ArrayCloning.staticField);
-
- Integer[] clonedField = ArrayCloning.clone2();
- checkIdentical(clonedField,ArrayCloning.nonStaticField);
-
- Integer[] clown = null;
-
- clown = ArrayCloning.clone3();
- clown = ArrayCloning.clone4();
- Integer[][] ArrayCloningArrayCloning = ArrayCloning.clone5();
- }
-
- public static void checkIdentical(Integer[] one, Integer[] two) {
- if (one[0]!=two[0]) throw new RuntimeException("Not the same (a)");
- if (one[1]!=two[1]) throw new RuntimeException("Not the same (b)");
- }
-
- private static Integer[] staticField = new Integer[2];
-
- private Integer[] nonStaticField = new Integer[2];
-
- public ArrayCloning() {
- nonStaticField[0] = new Integer(32);
- nonStaticField[1] = new Integer(64);
- }
-
- static {
- staticField[0] = new Integer(1);
- staticField[1] = new Integer(2);
- }
-
- public Integer[] clone1() {
- System.err.println("Clone call on a static field");
- return (Integer[])staticField.clone();
- }
-
- public Integer[] clone2() {
- System.err.println("Clone call on a non-static field");
- return (Integer[])nonStaticField.clone();
- }
-
- public Integer[] clone3() {
- System.err.println("Clone call on a local variable");
- Integer[] ArrayCloningArrayCloning = staticField;
- return (Integer[])ArrayCloningArrayCloning.clone();
- }
-
-
- // Clone call on anonymous 'thing' !
- public Integer[] clone4() {
- System.err.println("Clone call on a 1 dimensional anonymous integer array");
- return (Integer[])new Integer[5].clone();
- }
-
- // Sick
- public Integer[][] clone5() {
- System.err.println("Clone call on a 2 dimensional anonymous integer array");
- return (Integer[][])new Integer[5][3].clone();
- }
-
-
- }
-
- aspect HelloWorldAspect {
- Object[] around(): call(* java.lang.Object.clone()) && within(ArrayCloning) {
- Object[] ret = proceed();
- return (Object[])ret.clone();
- }
- }
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