On Thu, 2013-10-17 at 11:38 +0530, Dhruva Kumar wrote:
> I was using HttpClient 4.0.1 in my web application to communicate with
> different servers, specifically used httpclient-4.0.1.jar,
> httpcore-4.0.1.jar and httpmime-4.0.1.jar.
> Everything was working without any issues.
> Now I have upgraded the library to HttpClient 4.3.1
> (httpclient-4.3.1.jar, httpcore-4.3.jar & httpmime-4.3.1.jar).
> I had to change my workspace code to resolve all the compilation
> errors because of the library upgradation.
> But when my application is trying to establish a HTTP connection with
> other server, "java.lang.ClassCastException : java.lang.Long cannot be
> cast to java.lang.Integer" is thrown from getIntParameter() method in
> AbstrastHttpParams.java(part of httpcore).
>
>
> Implementation of getIntParameter() is as follows :
> public int getIntParameter(final String name, final int defaultValue)
> {
> final Object param = getParameter(name);
> if (param == null) {
> return defaultValue;
> }
> return ((Integer) param).intValue();
> }
>
>
> When this method is invoked from HttpClientParamConfig's
> setConnectionRequestTimeout() to get the value
> for ClientPNames.CONN_MANAGER_TIMEOUT,
> getIntParameter() throws ClassCastException because param object is
> assigned with Long typed object and casting it to Integer type
> reference : ((Integer) param).intValue()
>
>
>
> I see the following statements in ClientPNames.java
> * This parameter expects a value of type {@link Long}.
> * @since 4.2
>
> public static final String CONN_MANAGER_TIMEOUT =
> "http.conn-manager.timeout";
>
>
>
>
>
> If the parameter is of type Long, then why is
> setConnectionRequestTimeout() calling getIntParameter() rather than
> calling getLongParameter() ?
> Am I missing something here ?
>
>
>
> Would you recommend any suggestions to resolve this issue ?
>
>
> Thanks in advance,
> Dhruva
This is a known issue [1] which has already been resolved in SVN trunk.
The best way to get rid of it is to make sure your code does not use any
deprecated functionality
Oleg
[1] https://issues.apache.org/jira/browse/HTTPCLIENT-1418
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