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The Apache Tomcat servlet container provides an ideal environment for running Sakai as a web application. Tomcat implements both the Java Servlet and JavaServer Pages (JSP) specifications and can be run in standalone mode or in conjunction with a web application server such as the Apache HTTP server or JBoss. Sakai 2.7 works with the Tomcat 5.5 series. We (warning) Tomcat 5.5: we recommend Tomcat 5.5.28+ 33 in order to avoid certain Tomcat security vulnerabilities present in earlier releases. Note however, that using Tomcat 5.5.27+ requires the addition of a JAVA_OPTS parameter (see below). Sakai 2.7 is not compatible with Tomcat 6.0+.

(minus) Tomcat 6.0 / 7.0: Sakai 2.7 has not been tested in Tomcat 6.0 or 7.0 and will not run in either version of Tomcat without configuration changes. Adopters are advised to stay with the Tomcat 5.5. series.

(warning) JAVA_OPTS: running Sakai 2.x in Tomcat 5.5.27+ requires JAVA_OPTS modifications (see below).

(info) Sakai installations should always be accompanied by a fresh install of Tomcat. It provides a clean environment that simplifies troubleshooting if problems are encountered during the startup phase.

(minus) Sakai 2.7 out-of-the box (OOTB) will not run inside Tomcat 6.0+The Apache Tomcat servlet container provides an ideal environment for running Sakai as a web application. Tomcat implements both the Java Servlet and JavaServer Pages (JSP) specifications and can be run in standalone mode or in conjunction with a web application server such as the Apache HTTP server or JBoss. Sakai 2.7 works with the Tomcat 5.5 series.

Tomcat can be downloaded as a binary install from http://archive.apache.org/dist/tomcat/tomcat-5/

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Unpack the Tomcat archive into your installation directory of choice, e.g. /opt/. Unix/Mac users should create a symbolic link (e.g., ln -s apache-tomcat-5.5.2833) while Windows users should simply rename the base Tomcat directory to /tomcat to simplify the path.

Tomcat pathnames

Windows users should ensure that the Tomcat path includes no spaces as this causes errors with JavaServer Faces (JSF) tools in Sakai.

(thumbs up) Good: C:\opt\tomcat\, C:\sakaistuff\installs\tomcat\
(thumbs down) Bad: C:\program files\tomcat\, C:\opt\apache tomcat 5.5.2833\

Tomcat permissions

Unix/Mac users should make sure that they have write permissions to the Tomcat servlet container files and directories before proceeding or startup permission errors may occur.

Tomcat

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(minus) Tomcat 5.5.27+ enforces strict quote escaping which causes run-time errors in certain Sakai tools that use the JavaServer Faces (JSF) UI rendering framework. See https://issues.apache.org/bugzilla/show_bug.cgi?id=45015 for more details. If you deploy Sakai using Tomcat 5.5.27 add the following parameter to your JAVA_OPTS environment setting:

No Format

-Dorg.apache.jasper.compiler.Parser.STRICT_QUOTE_ESCAPING=false

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JDK 1.4 Compatibility Package

(minus) Do not download and install the JDK 1.4 Compatibility Package. Sakai 2.7 will not run should you install it.