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(HttpMethodBase.java:2152)
GCSM1Container at
org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1951)
GCSM1Container at
org.apache.commons.httpclient.HttpMethodBase.processRequest(HttpMethodBase.java:2659)
GCSM1Container at
org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java: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();
}
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