关于java代理的小问题，下面代码和书上完全一样，编译器报错java.lang.ArrayIndexOutOfBoundsException，求大神帮忙！

[Norshtein94]

编译器报错：500Exception in thread "main" .compareTo(java.lang.ArrayIndexOutOfBoundsException: 1
at v1ch06.TraceHandler.invoke(ProxyTest.java:51)
at com.sun.proxy.$Proxy0.compareTo(Unknown Source)
at java.util.Arrays.binarySearch0(Arrays.java:2439)
at java.util.Arrays.binarySearch(Arrays.java:2379)
at v1ch06.ProxyTest.main(ProxyTest.java:25)
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package v1ch06;

import java.lang.reflect.*;
import java.util.*;

/**
* This program demonstrates the use of proxies.
* @author Norshtein
*
*/
public class ProxyTest {
public static void main(String[] args) {
Object[] elements = new Object[1000];

for (int i = 0; i < elements.length; i++)
{
Integer value = i + 1;
InvocationHandler handler = new TraceHandler(value);
Object proxy = Proxy.newProxyInstance(null, new Class[] { Comparable.class}, handler);
elements[i] = proxy;
}

Integer key = new Random().nextInt(elements.length) + 1;

int result = Arrays.binarySearch(elements, key);

if (result >= 0) System.out.println(elements[result]);
}
}

class TraceHandler implements InvocationHandler {
private Object target;

public TraceHandler(Object t){
target = t;
}

public Object invoke(Object proxy, Method m, Object[] args) throws Throwable
{
// print implicit argument
System.out.print(target);

// print method name
System.out.print("."+m.getName()+"(");

// print explicit arguments
if (args != null)
{
for (int i = 0; i < args.length; i++)
{
System.out.print(args[1]);
if (i < args.length - 1) System.out.print(", ");

}
}
System.out.print(")");

return m.invoke(target, args);
}
}

[dzq584462393]

int result = Arrays.binarySearch(elements, key); key=长度随机在加1,是不是超长了

[Norshtein94]

是后面args[i]我写成了args[1]越界了，key=长度随机加1没错的，element[i] = i + 1哦

[rendason]

args是compareTo的参数列表，它只有一个参数，所以arhs[1]越界了

[尼古拉斯-全蛋]

楼上们说的应该对吧，代码贴的太乱，没细看