It can also be caused by more that one method using the same connection
simultaneously. For example if two threads are using the same
HttpClient instance with the SimpleHttpConnectionManager.
Mike
On Jun 11, 2004, at 4:27 AM, Kalnichevski, Oleg wrote:
Arturo,
"unable to find line starting with 'HTTP'" error is reported
(1) when response (status line, to be exact) sent by the server is
malformed
(2) if HttpClient fails to correctly parse the status line sent by the
server
(3) when the target server accepts connection but then fails to send
any response back and simply drops the connection on unsuspecting
HttpClient
The former two cases (1 and 2) are highly unlikely. They can easily be
tested by examining the wire log produced by HttpClient. The former
case (3) is by far more common and can occur when the target server is
under heavy load. In this case the problem needs to be addressed on
the server side and has nothing to do with HttpClient
Hope this helps
Oleg
-----Original Message-----
From: Arturo Esquivel Sanchez [mailto:[EMAIL PROTECTED]
Sent: Thursday, June 10, 2004 12:20
To: [EMAIL PROTECTED]
Subject: HttpClient 2.0 problems
Hi,
The problem that im having is that sometimes i get the following error
when trying to connect to url, and then i change something in my code
and
suddenly works fine, then i change something again and i get again the
same error (¿?), if a loop in my code in order to get a response other
than -1 it doesn´t work and i get a lots of the error.
This is the error:
[INFO] HttpMethodBase - -Recoverable exception caught when processing
request [WARN] HttpMethodBase - -Recoverable exception caught but
MethodRetryHandler.ret ryMethod() returned false, rethrowing exceptionA
recoverableexception occurred, retrying.
org.apache.commons.httpclient.Http RecoverableException: Error in
parsing
the status line from the response: unabl e to find line starting with
"HTTP"
This is the code that im using:
boolean retry=false;
do{
statusCode = Procesa_Get_Url(url, client, config, state,
urlToConnect2, respHTML1);
if (statusCode != -1 && urlToConnect2.toString().trim() != ""
&&
urlToConnect2.toString().trim().length() != 0){
retry=true; }
}while (retry==false);
private int Procesa_Get_Url(String urlProc, HttpClient clientProc,
HostConfiguration configProc, HttpState stateProc, StringBuffer urlTC,
StringBuffer respHTML) throws Exception { int statusCode=-1;
String redirectLocation=null;
clientProc.setTimeout(60*30*1000);
clientProc.setHttpConnectionFactoryTimeout(60*30*1000);
clientProc.setConnectionTimeout(60*30*1000);
//try{
//URI uri = new URI(urlProc.toCharArray());
URI uri = new URI(urlProc.toCharArray());
HttpMethod method = new GetMethod(uri.toString());
String schema = uri.getScheme();
if ((schema == null) || (schema.equals(""))){
schema = "http";
}
Protocol protocol = Protocol.getProtocol(schema);
String host = uri.getHost();
int port = uri.getPort();
configProc.setHost(host,port,protocol);
configProc.setProxy(System.getProperty("http.proxyHost"),Integer.parseI
nt(System.getProperty("http.proxyPort","80")));
stateProc.setProxyCredentials(null, null,
new UsernamePasswordCredentials(
System.getProperty("http.proxyUserName"),
System.getProperty("http.proxyPassword")));
int attempt=0;
boolean retry=false;
//do{
//for (attempt = 0; statusCode == -1 && attempt < 3; attempt++) {
try{
statusCode =
clientProc.executeMethod(configProc,method,stateProc);
//if
(statusCode != -1){ // retry=true;
//}
} catch (HttpRecoverableException e) {
method.recycle();
method.releaseConnection();
System.out.println("A recoverable exception occurred,
retrying. " + e.getMessage()); } catch
(IOException e) {
System.err.println("Failed to download file.");
e.printStackTrace();
}catch (Exception e) {
System.err.println("Errorsote.");
e.printStackTrace();
}
//}while (retry=false);
if (statusCode == -1) {
System.err.println("Numero de Intentos:" + attempt);
System.err.println("Failed to recover from exception.");
}
switch (statusCode){
case 200 : stateProc.setCookiePolicy(CookiePolicy.RFC2109);
Cookie[] cookies = stateProc.getCookies();
System.out.println("Present cookies: ");
for (int i = 0; i < cookies.length; i++) {
System.out.println(" - " +
cookies[i].toExternalForm());
}
urlTC.append(method.getURI().toString());
respHTML.append(method.getResponseBodyAsString());
break;
case 302 : stateProc.setCookiePolicy(CookiePolicy.RFC2109);
Cookie[] cookies2 = stateProc.getCookies();
System.out.println("Present cookies: ");
for (int i = 0; i < cookies2.length; i++) {
System.out.println(" - " +
cookies2[i].toExternalForm());
}
Header locationHeader =
method.getResponseHeader("location"); if
(locationHeader != null) {
redirectLocation =
locationHeader.getValue();
urlTC.append(redirectLocation);
}else{
urlTC.append(method.getURI().toString());
}
respHTML.append(method.getResponseBodyAsString());
break;
}
method.recycle();
method.releaseConnection();
//} catch (Exception e) {
// System.err.println("Failed to download file.");
// e.printStackTrace();
//}
return (statusCode);
}
Thanks in advance for your help
Best Regards,
Arturo
Saludos,
Arturo
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