Name: boT120536 Date: 05/13/2001


$ java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

Thanks Bret for his response. But when I look at the HTTP1.1 spec (RFC 2616)
Section 10.3, it said "Note: previous versions of this specification
recommended a maximum of five redirections...."

that means the latest version of Http1.1 spec does not have such restriction,
right?

----------------------------------------------------------------------
Bret O'Neal <###@###.###> wrote:


Hi Sam Cheung,

Server redirected to many times is due to the Http 1.1 Spec.
It is spec'd to stop @ 5.

See the following search of our bug and forum Db
http://search.java.sun.com/Search/java?qt=+%2BServer+%2Bredirected+%2Btoo+%
2Bmany+%2Btimes&col=nforum&col=obug&rf=0


(Please make sure all white space is out of the address before you paste it in
to your browser.)


Regards,
Bret
----------------- Original Bug Report-------------------

category : java
subcategory : classes_net
release : 1.3
type : bug
synopsis : java API throws ProtocolException when accessing
site "http://expediamaps.com"
description : $ java -version
java version "1.3.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0-C)
Java HotSpot(TM) Client VM (build 1.3.0-C, mixed mode)

1. run the sample program below:

import java.net.*;
import java.io.*;

public class TestURL {
public static void main(String[] args) {
try {
URL url = new URL("http://www.expediamaps.com/");
url.set(
BufferedReader in = new BufferedReader(
new InputStreamReader(
url.openStream()));

String inputLine;

while ((inputLine = in.readLine()) != null)
System.out.println(inputLine);

in.close();
} catch (Exception e) {
System.out.println (e.toString());
System.out.println (e.getMessage());
e.printStackTrace();
}

}
}

2. Here is the Exception thrown by Java net API. This program works if I use
another site (e.g. www.yahoo.com )
java.net.ProtocolException: Server redirected too many times (5)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream
(HttpURLConnection.java:552)
at java.net.URL.openStream(URL.java:798)
at TestURL.main(TestURL.java:20)
java.net.ProtocolException: Server redirected too many times (5)
Server redirected too many times (5)
Server redirected too many times (5)

My question is why Java Net API thrown that exception. I can access the site
from my browser. And what is the work-around for that problem.
workaround :
suggested_val :
cust_name : Sam Cheung
cust_email : ###@###.###, ###@###.###
jdcid : sy_cheung
keyword : webbug
company : Novarra
hardware : x86
OSversion : windows_2000
bugtraqID : 0
dateCreated : 2001-04-30 14:47:35.4
dateEvaluated : 2001-05-06 15:56:21.524
(Review ID: 123910)
======================================================================


*** ###@###.### 10/05/2001 ***
Attached is a sample test case (Test1.java.Z) which exhibits this problem
using jdk 1.3.1_01 & Solaris 7. This sample case works fine using jdk 1.4beta2.
This sample test case exhibits the same "Server redirected ..." error.