Best practices for configuring Apache / Tomcat

We are currently using Apache 2.2.3 and Tomcat 5 (Embedded in JBoss 4.2.2) using mod_proxy_jk as the connector.

Bad Gateway 502 error with Apache mod_proxy and Tomcat

We're running a web app on Tomcat 6 and Apache mod_proxy 2.2.3. Seeing a lot of 502 errors like this:

How to tune Tomcat 5.5 JVM Memory settings without using the configuration program

I need to configure Tomcat memory settings as part of a larger installation, so manually configuring tomcat with the configuration app after the fact is out of the question. I thought I could just throw the JVM memory settings into the JAVA_OPTS environment variable, but I'm testing that with jconsole to see if it works and it... doesn't.

Java error: Only a type can be imported. XYZ resolves to a package

I get the error: "Only a type can be imported. XYZ resolves to a package."

Howto embed Tomcat 6?

I'm currently running my webapps on Tomcat 6 in production, and would like to evaluate running Tomcat in embedded mode.

One Tomcat instance for two domains and two webapps

How can I configure Tomcat (in standalone mode, that is without Apache [*]) so that I can deploy it on one server and have it serve two different webapps, depending on the domain name requested?

How to make simplest servlet filter respect setted character encoding

Gentlemen, it feels like I'm stuck. I'm trying to write the simplest servlet Filter (and deploy it to tomcat). It's a groovy code, but actually I'm heavily usin java approaches here, so it is almost copypaste, that's the reason I've added java tag as well.