Configure Apache Tomcat with extraClasspath property.


Setup extraClasspath property in

# Add this classpath prior to application classpath.
# This may be useful for example in multi module maven project, where you do not need to build JAR file
# after each change.
# Note that there must be a plugin that will provide actual replacement such as JettyPlugin for Jetty servlet container.

Implementation notes:

StandardContext (parsed web.xml configuration):

  • isCachingAllowed() - force to false
  • watchedResources
  • startInternal() - implemented lifecyle


  • getResource(String path) - override webapp directory location
  • ClassLoader getClassLoader() -> ClassLoader result = context.getLoader().getClassLoader();


  • add webappPath property