Kotlin is the latest JVM-targeted language to see a 1.0.0 release. Having experimented with it for a short while I thought I would capture my experience and point out a few gotchas.

The standard LDAP JNDI implementation that ships with Java leaks a classloader reference when used from a web application hosted in a web container. While Tomcat and Jetty both include factory-fitted workarounds, JBoss does not. This post describes a JBoss-specific fix.