新浪javasdk在jdk5上不兼容解决方案

新浪javasdk在jdk5下不兼容解决方案
HttpClient.java中错误解决：
1.加入activation.jar包
2.

private static Object[] copyOf(Object[] src, int length){    Class clazz = src.getClass();    Object[] dest = (Object)clazz == (Object)Object[].class ?(Object[])new Object[length] : (Object[])Array.newInstance(clazz.getComponentType(), length);    System.arraycopy(src, 0, dest, 0, Math.min(src.length, length));    return dest;    }