Serious bug in Weblogic when connecting to a remote website through a local proxy server (proxyHost, proxyPort)

Hi there,
It seems that there is a serious problem with any version of Weblogic when you
have to pass through a local proxy server to connect a remote website.
Whenever I am trying to run the jsp program below either with Weblogic 7.0 SP2
or even with Weblogic 8.1, I get the following exception :
An error occured: Tried all: '1' addresses, but could not connect over HTTP to
server: 'www.sun.com', port: '80'
When I run the same program outside Weblogic, it works fine. Other people have
already reported the same problem either in this newsgroup or on Internet forums,
and up to now, the problem is not fixed yet.
In fact, Weblogic seems to block when it performs the connect() method to the
proxy, my jsp program hangs a few minutes before returning the error message shown
above.
If anyboby can tells me how this problem can be solved (or maybe via a workaround)
do not hesitate to keep me informed, thanks in advance.
Please find below my code :
public class ProxyDownload extends HttpServlet
private static final String CONTENT_TYPE = "text/html";
//Initialize global variables
public void init() throws ServletException
public String bufferedReaderToString (BufferedReader br) throws IOException
String xml = "";
String line = null;
while ( (line = br.readLine()) != null)
xml += line;
return xml;
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>Proxy Download</title></head>");
out.println("<body bgcolor=\"#c0c0c0\">");
try{
// Set proxy stuff
System.getProperties().put( "http.proxySet", "true");
System.getProperties().put( "http.proxyHost", "ip_address" );
System.getProperties().put( "http.proxyPort", "port");
String password = "user:pass";
sun.misc.BASE64Encoder objEncoder = new sun.misc.BASE64Encoder();
String code = objEncoder.encode(password.getBytes());
// Find the file name to save
String file = null;
// Open a connection
URL url = new URL("http://www.sun.com");
URLConnection connection = url.openConnection();
// Set up the connection so it knows you are sending
// proxy user information
connection.setRequestProperty( "Proxy-Authorization", "basic " + code);
connection.connect();
// Set up the connection so you can do read and writes
connection.setDoInput( true );
BufferedReader inBuff = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String str = bufferedReaderToString(inBuff);
out.println(" " + str);
catch(Exception e){
out.println(" An error occured: " + e.getMessage());
out.println("</body></html>");
//Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
doGet(request, response);
//Clean up resources
public void destroy()

Hello,
The way to set the HTTP connection using a proxy server changed (from
using the system property
weblogic.webservice.transport.http.proxy.host/port)[1] in WLS 7.x to the
standard JDK 1.4 system properties [2] in WLS 8.1.
I would recommend opening a dialog with our outstanding support team [3]
to resolve this issue.
Thanks,
Bruce
[1]
http://edocs.bea.com/wls/docs70/webserv/client.html#1058615
[2]
http://java.sun.com/j2se/1.4/docs/guide/net/properties.html
[3]
http://support.bea.com
[email protected]
Yves Hardy wrote:
>
Hi there,
It seems that there is a serious problem with any version of Weblogic when you
have to pass through a local proxy server to connect a remote website.
Whenever I am trying to run the jsp program below either with Weblogic 7.0 SP2
or even with Weblogic 8.1, I get the following exception :
An error occured: Tried all: '1' addresses, but could not connect over HTTP to
server: 'www.sun.com', port: '80'
When I run the same program outside Weblogic, it works fine. Other people have
already reported the same problem either in this newsgroup or on Internet forums,
and up to now, the problem is not fixed yet.
In fact, Weblogic seems to block when it performs the connect() method to the
proxy, my jsp program hangs a few minutes before returning the error message shown
above.
If anyboby can tells me how this problem can be solved (or maybe via a workaround)
do not hesitate to keep me informed, thanks in advance.
Please find below my code :
public class ProxyDownload extends HttpServlet
private static final String CONTENT_TYPE = "text/html";
//Initialize global variables
public void init() throws ServletException
public String bufferedReaderToString (BufferedReader br) throws IOException
String xml = "";
String line = null;
while ( (line = br.readLine()) != null)
xml += line;
return xml;
//Process the HTTP Get request
public void doGet(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>Proxy Download</title></head>");
out.println("<body bgcolor=\"#c0c0c0\">");
try{
// Set proxy stuff
System.getProperties().put( "http.proxySet", "true");
System.getProperties().put( "http.proxyHost", "ip_address" );
System.getProperties().put( "http.proxyPort", "port");
String password = "user:pass";
sun.misc.BASE64Encoder objEncoder = new sun.misc.BASE64Encoder();
String code = objEncoder.encode(password.getBytes());
// Find the file name to save
String file = null;
// Open a connection
URL url = new URL("http://www.sun.com");
URLConnection connection = url.openConnection();
// Set up the connection so it knows you are sending
// proxy user information
connection.setRequestProperty( "Proxy-Authorization", "basic " + code);
connection.connect();
// Set up the connection so you can do read and writes
connection.setDoInput( true );
BufferedReader inBuff = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String str = bufferedReaderToString(inBuff);
out.println(" " + str);
catch(Exception e){
out.println(" An error occured: " + e.getMessage());
out.println("</body></html>");
//Process the HTTP Post request
public void doPost(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException
doGet(request, response);
//Clean up resources
public void destroy()

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