The errors are not always as intuitive as one might hope. Check the user and permissions.
You can easily deploy to tomcat to see if there are any configuration issues: You didn't mention what you were upgrading from? FWIW - I just upgraded in December - there were a number of pain points but things seem to work ok. My upgrade was from a Tomcat instance to a Tomcat running in Docker -----Original Message----- From: Dave Koelmeyer [mailto:dave.koelme...@davekoelmeyer.co.nz] Sent: Tuesday, February 28, 2017 1:46 PM To: user@jspwiki.apache.org Subject: IllegalStateException with the latest JSPWiki Hi All, I've just performed a JSPWiki upgrade using the latest JSPWiki-2.10.3-SNAPSHOT checked out from Git. I've replaced my existing WAR file with the newly built WAR and restarted my container. JSPWiki will then generate the following error when navigating to the base URL: The server encountered an internal error that prevented it from fulfilling this request. java.lang.IllegalStateException: getWriter() has already been called for this response On other attempts to redeploy the WAR, JSPWiki will apparently start fine, but the same error is then generated when trying to save user preferences. I'm running Payara Server 4.1.1.161 with JDK 1.8.0_73. The container does have file-based realm authentication configured, and HTTPS. I'm using the Haddock template. Any ideas? Thanks! -- Dave Koelmeyer http://blog.davekoelmeyer.co.nz GPG Key ID: 0x238BFF87 This email may contain confidential or privileged material. Use or disclosure of it by anyone other than the recipient is unauthorized. If you are not an intended recipient, please delete this email.
