Version 1.13.0 of ClassLoader Leak Prevention library has just been released, and should propagate to Maven Central shortly.

This version changes the treatment of threads that uses the web apps ClassLoader as its contextClassLoader, while neither the Thread nor its Runnable are loaded by that ClassLoader. Previously the library would kill such Threads, assuming the ClassLoaderLeakPreventor.stopThreads setting was not explicitly disabled, which caused issues with Tomcat 7 executors.

Grab the new version via Maven central or download the jar manually.

<dependency>
  <groupId>se.jiderhamn</groupId>
  <artifactId>classloader-leak-prevention</artifactId>
  <version>1.13.0</version>
</dependency>