The response could not be parsed

I am using redstone-xmlrpc-1.1.1 api with my code and getting this error:

redstone.xmlrpc.XmlRpcException: The response could not be parsed.

    at redstone.xmlrpc.XmlRpcClient.handleResponse(Unknown Source)
    at redstone.xmlrpc.XmlRpcClient.endCall(Unknown Source)
    at redstone.xmlrpc.XmlRpcClient.invoke(Unknown Source)
    at redstone.xmlrpc.XmlRpcProxy.i开发者_运维知识库nvoke(Unknown Source)
    at net.bican.wordpress.$Proxy1.newMediaObject(Unknown Source)
    at net.bican.wordpress.Wordpress.newMediaObject(Wordpress.java:582)
    at WordpressPost.DataWordpressPost.DataPost(DataWordpressPost.java:53)
    at arrestcentral.ArrestData.readPdf(ArrestData.java:420)
    at arrestcentral.ArrestData.main(ArrestData.java:447)
Caused by: java.io.FileNotFoundException: http://www.arrestcentral.com/XMLrpc.php?
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1478)
    ... 9 more

can anyone help me why I am unable to post on wordpress..

Well, the exception tells you what's happened - you've tried to fetch a URL of

http://www.arrestcentral.com/XMLrpc.php?

... and it was giving you an HTTP 404 (not found) error. You probably need to change the URL, but you should have more idea of what that URL should be than we do.

java.io.FileNotFoundException: http://www.arrestcentral.com/XMLrpc.php? should have given you a clue:

Nothing was found at the URL you specified. This means that the server returned a HTTP response with the error code 404.

You either mistyped the URL or it no longer exists (at this location).