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From Jeffrey Sinclair <>
Subject URLResolver's dependency on URLConnection.getContentLength()
Date Mon, 24 Nov 2008 22:14:20 GMT
I've been trying to use the URLResolver with a custom protocol that
returns -1 for URLConnection.getContentLength(). The problem I'm seeing
is that for my custom protocol, resources can never be found.

After a little debugging I found the following code in
org.apache.ivy.util.url.BasicURLHandler.getURLInfo() which explains why
I'm running into issues:

    public URLInfo getURLInfo(URL url, int timeout) {

            if (con instanceof HttpURLConnection) {
            } else {

                int contentLength = con.getContentLength();

                if (contentLength <= 0) {

                    return UNAVAILABLE;

                } else {




Is this a bug in the URLResolver? For certain resources which are
streamed, the content length will not be known so I'm not sure that
UNAVAILABLE should be dependent on the content length.




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