FusionReactor is a commercial server monitor developed by Intergral GmbH for monitoring Java application servers such as Tomcat, JBoss and WebSphere and in particular Adobe ColdFusion, Railo, and Flex Data Services. It has been designed to use less than 1% overhead. Since its initial release in November 2005, FusionReactor has been used by some of the world's largest organizations.
FusionReactor has been implemented as a Java agent, using point cut technology within the J2EEservlet container. The agent enables FusionReactor to instrument any information which is available within the Java container, including CPU, memory, thread information (stack traces) and JDBC calls.