Name: gm110360			Date: 06/28/2004


FULL PRODUCT VERSION :
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b51)
Java HotSpot(TM) Client VM (build 1.5.0-beta2-b51, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows 2000 [Version 5.00.2195]

A DESCRIPTION OF THE PROBLEM :
When I tried to get the response code of a conection using the HttpUrlConnection class (java 1.5.0) of an specif and valid url ( http://www.scielo.br/gmb.htm )  I got  an Runtime exception.

When I complied and executed the same program with :

java version "1.4.2_03"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_03-b02)
Java HotSpot(TM) Client VM (build 1.4.2_03-b02, mixed mode)

I got the error code:  404.

But if  use a browser (Internet Explorer 5 and Mozilla 1.7) I can download the page without problems.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1) compile and execute the program with  java 1.5
2) compile and execute the program with  java 1.4.2
3) dowload the page with a browser


ERROR MESSAGES/STACK TRACES THAT OCCUR :
Exception in thread "main" java.lang.RuntimeException: java.lang.IllegalArgument
Exception: protocol = http host = null
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown So
urce)
        at sun.net.www.protocol.http.HttpURLConnection.getHeaderField(Unknown So
urce)
        at java.net.HttpURLConnection.getResponseCode(Unknown Source)
        at TestURLConnection.main(TestURLConnection.java:12)
Caused by: java.lang.IllegalArgumentException: protocol = http host = null
        at sun.net.spi.DefaultProxySelector.select(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Sour
ce)
        at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
        at sun.net.www.protocol.http.HttpURLConnection.followRedirect(Unknown So
urce)
        at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown So
urce)
        ... 2 more

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.net.*;

public class TestURLConnection {
	static String MYURL = "http://www.scielo.br/gmb.htm";

	public static void main(String[] args) throws Exception {
		URL url = new URL(MYURL);
		HttpURLConnection connection =
                                                                   (HttpURLConnection)url.openConnection();

		connection.setFollowRedirects(true);
		connection.connect();
		System.out.println("code = " + connection.getResponseCode());
		connection.disconnect();
	}
}
---------- END SOURCE ----------

Release Regression From : 1.4.2
The above release value was the last known release where this 
bug was known to work. Since then there has been a regression.

(Incident Review ID: 281500) 
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