proxy with a filter - hangs :(

Hi all!

I would like to run a proxy with a filter on the proxied pages. But the
filter seems to hang. Any ideas ??

My configuration is as follows on windows XP:

----- httpd.conf -----
....
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule ext_filter_module modules/mod_ext_filter.so
....

ProxyRequests On
<Proxy *>
Order Deny,Allow
Deny from all
Allow from localhost
</Proxy>

ExtFilterDefine modifilter mode=output
cmd="F:/Programmer/j2sdk_NetBeans/j2sdk1.4.2/bin/java.exe -cp F:/\"Documents
and Settings\"/Modi/Dokumenter/dpProxy/Java/ filter"
SetOutputFilter modifilter
#ExtFilterOptions DebugLevel=1

----- httpd.conf -----

This configuration seems to be ok as the java program filter is run.

However the filter hangs:(

My simple test filter filter.java that just pipes the page looks like:
----- filter.java -----
....
String s = "";
try {
//BufferedReader in = new BufferedReader( /*Have tried buffering also*/
// new InputStreamReader(System.in));
InputStreamReader in = new InputStreamReader(System.in);

int myi =0;

int tc;

while (myi<10000){
if ((tc = in.read())!=-1)
s = s.concat(String.valueOf((char)tc));
myi++;
}
catch (
....
System.out.println("test:" + s);
....
----- filter.java -----

In the above code changing 10000 to ie 2000 makes the filter run ok - the
top the proxied page is returned. Somewhere above 2000 it hangs though and
throws no exception, and the limit seems to change between runs. Sometimes
5000 is ok - sometimes it is not :(

Btw. the ExtFilterOptions line seems to make apache fail to restart - so I
can't get further debugmessages.

Thanks for your help

Morten Iversen