为什么同样的java httpclient代码在不同的平台--- linux和windows下返回不同的结果？

Question

当我在windows和linux下运行相同的代码时，我会得到不同的结果！换句话说，它在windows中运行良好，而在linux中却失败了！任何人都可以帮我解决这个问题吗？

我想要提取的网页是“http://www.linkedin.com/pub/song-xuemeng/4b/683/565”。

代码如下：

import java.io.BufferedReader;
import java.io.InputStreamReader;

import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;

public class api {
public String fetchAPI(String url) {
    GetMethod getMethod;
    HttpClient client = new HttpClient();
    int statusCode;
    getMethod = new GetMethod(url);
    getMethod.getParams().setParameter(HttpMethodParams.RETRY_HANDLER,
            new DefaultHttpMethodRetryHandler());
    getMethod.getParams().setParameter("http.protocol.cookie-policy",
            CookiePolicy.BROWSER_COMPATIBILITY);
    getMethod.getParams().setParameter(HttpMethodParams.SO_TIMEOUT, 5000);

    BufferedReader reader = null;
    String result = "";
    String line = "";
    try {
        statusCode = client.executeMethod(getMethod);
        if (statusCode != HttpStatus.SC_OK) {
            System.err.println("Method failed: "
                    + getMethod.getStatusLine());
        }
        reader = new BufferedReader(new InputStreamReader(
                getMethod.getResponseBodyAsStream(), "utf-8"));
        if (reader != null) {
            while ((line = reader.readLine()) != null) {
                // System.out.println(line);
                result += line;
            }
            reader.close();
            getMethod.releaseConnection();
            return result;
        } else{
            reader.close();
            getMethod.releaseConnection();
            return "";
        }

    } catch (Exception e) {
        getMethod.releaseConnection();
        System.out.println("opsss");
        return "";
    }
}

public static void main(String[] arg){
System.out.println(fetchAPI("http://www.linkedin.com/pub/song-xuemeng/4b/683/565"));
}


}