diff -r 558590fb3b49 -r 0b4d21bc8b5c jdk/src/share/classes/sun/net/www/protocol/http/HttpURLConnection.java
--- a/jdk/src/share/classes/sun/net/www/protocol/http/HttpURLConnection.java	Wed Oct 21 15:41:42 2009 +0100
+++ b/jdk/src/share/classes/sun/net/www/protocol/http/HttpURLConnection.java	Wed Oct 21 15:47:09 2009 +0100
@@ -1552,7 +1552,7 @@
      * because ntlm does not support this feature.
      */
     private AuthenticationInfo
-        resetProxyAuthentication(AuthenticationInfo proxyAuthentication, AuthenticationHeader auth) {
+        resetProxyAuthentication(AuthenticationInfo proxyAuthentication, AuthenticationHeader auth) throws IOException {
         if ((proxyAuthentication != null )&&
              proxyAuthentication.getAuthScheme() != NTLM) {
             String raw = auth.raw();
@@ -1776,7 +1776,7 @@
     /**
      * Sets pre-emptive proxy authentication in header
      */
-    private void setPreemptiveProxyAuthentication(MessageHeader requests) {
+    private void setPreemptiveProxyAuthentication(MessageHeader requests) throws IOException {
         AuthenticationInfo pauth
             = AuthenticationInfo.getProxyAuth(http.getProxyHostUsed(),
                                               http.getProxyPortUsed());
@@ -2132,13 +2132,9 @@
 
     String requestURI = null;
 
-    String getRequestURI() {
+    String getRequestURI() throws IOException {
         if (requestURI == null) {
-            try {
-                requestURI = http.getURLFile();
-            } catch (IOException e) {
-                requestURI = "";
-            }
+            requestURI = http.getURLFile();
         }
         return requestURI;
     }