The URL Rewriting capability of the IIS Tomcat Connector (1.2.19) only works in debug mode. In init_jk(char *serverName) method in jk_isapi_plugin.c the "else" statement on line 1227 is calling jk_map_free, which frees the rewrite_map. If debug is enabled the code enters the if on line 1222 and works as expected. It seems like the "else" statement which frees the map should be moved to after line 1230. Turning on debug is not an acceptable workaround, since the log file will grow extremely large, we've had 8GB+ in a day.
Fixed in the SVN. Thanks for spotting that Chris.
Move a couple of fixed JK issues from resolved to closed.