I'm trying to set up a response filter, but am running into problems. My main page and some jsps render properly. Others don't return anything at all (I hate getting back plain white pages).
Anyway, I'm not sure what makes some jsps work and others fail. I'm also not sure how to troubleshoot this (other than trial and error, which isn't going well). I'm not getting any errors (adding to my frustration and feelings of helplessness). I've attached the source code for the filter. I'm including the filter related entries from my web.xml file, as well as some of the output (you'll see the logging statement in the source code). It seems odd to me that the good pages have a lot of logged output while the bad ones have very little output. Any suggestions, ideas or help would be greatly appreciated! I'm running this on Fedora Core 3, using Tomcat 5.0.19 with JDK 1.4.2_07. If I've left anything out, please let me know. Todd The relevant portions of web.xml: <filter> <filter-name>dateFormatter</filter-name> <filter-class>msei.manu.web.servlets.DateFormatFilter </filter-class> </filter> <filter-mapping> <filter-name>dateFormatter</filter-name> <url-pattern>/*</url-pattern> <dispatcher>REQUEST</dispatcher> <dispatcher>FORWARD</dispatcher> <dispatcher>INCLUDE</dispatcher> </filter-mapping> Here's the log output from a good request: INFO http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - PrintWriter getting called DEBUG http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor23 msei.manu.web.servlets.DateFormatFilter - Bytes is 327680 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 3799 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 47240 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 3455 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 8302 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 0 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 0 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 0 INFO http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor25 msei.manu.web.servlets.DateFormatFilter - Bytes is 0 And here's one from a bad request (one that doesn't have any output): INFO http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - Filtering response DEBUG http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - PrintWriter getting called DEBUG http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - getOutputStream has been called DEBUG http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - IsClosed = false DEBUG http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - Filter is checking outbound content DEBUG http8080-Processor24 msei.manu.web.servlets.DateFormatFilter - Bytes is 0 S.O.S. 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