Oracle Enterprise Manager 10g Application Diagnostics for Java

Oracle AD4J is a lightweight Java application monitoring and diagnostics tool that enables administrators to diagnose performance problems in production.

There are two installations, one is AD4J Agent and the other is AD4J Console.

AD4J Agent is a j2ee application need to be deployed in target OC4J (which you need to diagnose).

AD4J Console is a web based application which you can use to monitor the application in target OC4J (which you have installed AD4J Agent).

Installation steps:

1. Download and install AD4J Console on any server

2. Login to AD4J Console, and download AD4J Agent

3. Deploy AD4J Agent to target J2EE Server

4. You can check in target J2EE Server log to verify AD4J is running (For OC4J it will be in OC4J OPMN log)

For more information on how to install AD4J Agent and Console, please follow below link:

http://download.oracle.com/docs/cd/E11857_01/install.111/e11085/toc.htm

Install Oracle JDeveloper 11g on Mac

To install Oracle JDeveloper 11g (11.1.1.3) on Mac Snow Leopard is pretty straightforward.

Make sure you have updated Java to version 1.6 and set it as default in Java Preferences.

After that, execute below commands in terminal:

$ cd /System/Library/Frameworks/JavaVM.framework/Versions/
$ sudo rm CurrentJDK
$ sudo ln -s 1.6.0 CurrentJDK