Isapi redirect with tomcat 5.5

I've got a web server and a docushare server. I have both using iis with an isapi redirect for tomcat 5.5. I turn on ssl with a cert in both iis servers and when I try to make an https request to some java code on my webserver which requests data from docushare I get the following error:

"javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target"

I can't seem to figure out exactly how the isapi redirect works. According to Apache.org, the request would come into IIS - who decrypts the request - passes it to tomcat - who sends the needed java servlet (or whatever) in cleartext back to IIS - who encrypts it and sends it out. If it really works that way, why am I getting this error?

I'd appreciate any help. I'm having trouble finding documentation online.

Have you figured out how to achieve this. Because I'm having the same issue to configure the isapi_redirect.exe to foward SSL requests to Tomcat.

My setup is IIS 6 + Tomcat 6.0.16 + ISAPI_REDIRECT 1.2.26

Cheers,
Mike

I don't think you can do what you want, but if you can you'll probably need to find the answer from the vendor of the iis isapi redirect code.