url_rewrite_program in Java

["Lu, Roy" <rlu@xxxxxxxxxxxxxxx>]

Does anyone have an example of a url rewrite program in Java. I tried
with the following code but it did not work.

----------------------------
Squid.conf:
url_rewrite_program /usr/bin/java -classpath /usr/local/squid/sbin
RewriteHelper
----------------------------
RewriteHelper.java:

import java.io.*;

public class RewriteHelper {

    public static void main(String[] args) throws Throwable {
        try {
            BufferedReader in = new BufferedReader(new
InputStreamReader(System.in));
            String input;

            while(true) {
                input = in.readLine();
                System.out.println(input);
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
----------------------------
It seems that Squid only regards 'java' as the rewrite program, not the
entire command with the java class, i.e., '/usr/bin/java -classpath
/usr/local/squid/sbin RewriteHelper'.

Thanks.
Roy

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