J Optimizer 2009 supports most of the leading commercial and open source Java application servers, including:

• Apache Geronimo 1.1.1
• Apache Geronimo 2.0
• Apache Tomcat 5.0
• Apache Tomcat 5.5
• Apache Tomcat 6.0
• BEA WebLogic Application Server 9.2 MP3
• BEA WebLogic Application Server 10.1 MP1
• IBM WebSphere 6.1
• IBM WebSphere 6.1 with EJB 3 Feature Pack
• JBoss 3.2.6
• JBoss 4.0.5
• JBoss 4.2
• JBoss 5.0
• Oracle Application Server 10.1.3.3 (support for J Optimizer agent only)
• Sun GlassFish V1.1 UR1
• Sun GlassFish V2.0 UR2
• Jetty 6.1 (support for J Optimizer agent only)