Re: HttpClient 2.0: Null pointer exception

[Michael Becke]

Hello Francois,
This a pretty strange location for a NPE.  Are you using a stock  
version of HttpClient or have there been any changes made to  
MultiThreadedHttpConnectionManager or HttpConnection?  Also please post  
a wire/debug log  
<http://jakarta.apache.org/commons/httpclient/logging.html> of a  
session where this problem occurs.

Thanks,
Mike
On Jul 28, 2004, at 1:24 PM, COURTAULT Francois wrote:
Hello,
We have a multi threaded Java program which send HTTP POST to a  
server. Sometimes we got this stack trace:

java.lang.NullPointerException
GCSM1Container  at
org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java: 
109)
GCSM1Container  at
org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:135)
GCSM1Container  at
org.apache.commons.httpclient.HttpParser.parseHeaders(HttpParser.java: 
172)
GCSM1Container  at
org.apache.commons.httpclient.HttpMethodBase.readResponseHeaders(HttpMe 
thodBase.java:2152)
GCSM1Container  at
org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBas 
e.java:1951)
GCSM1Container  at
org.apache.commons.httpclient.HttpMethodBase.processRequest(HttpMethodB 
ase.java:2659)
GCSM1Container  at
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.jav 
a:1093)
GCSM1Container  at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java: 
675)
GCSM1Container  at
org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java: 
529)

Any idea or fix.
Best Regards.
PS: All the thread has an access to a singleton class which performs  
HTTP POST requests with the following logic:

Singleton initialization:
     MultiThreadedHttpConnectionManager = new  
MultiThreadedHttpConnectionManager();
     HTTPClient httpClient = new HttpClient(httpConnectionManager);

Method sending the POST logic:
        try {
        PostMethod postMethod = new PostMethod();
        httpClient.executeMethod(postMethod);
        response = postMethod.getResponseBodyAsString();
        } catch(....)
          finally {
                postMethod.releaseConnection();
      }
---------------------------------------------------------------------
To unsubscribe, e-mail:  
[EMAIL PROTECTED]
For additional commands, e-mail:  
[EMAIL PROTECTED]


---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]