Example to setup first JMX MBean in WebSphere Application Server

I struggled very hard to land on this page. I am using WAS 6.1, and on the net, its quite difficult to get documentation on 6.1, But on WAS 5.1 , good amount of documentation is available. One of the documentation from WAS 5.1 I used to setup JMX MBeanServer as well configuring MBean on WAS 6.1, and i was able to do it successfull.

Sharing with you all for your help, the link which provides details of setting up JMX with the examples.

http://www.ibm.com/developerworks/websphere/techjournal/0304_williamson/williamson.html

How to set Java Path to run Java Program

Please read my earlier post about How to install Java before setting the Java Path to compile java file.

Once you are done with Java Installation,Right click on the My Computer Icon of your desktop or if you dont have My Computer icon on your desktop then right click on the My Computer in File Explorer.

-> Select the Properties Item

-> Select the Advanced Tab

-> Click Envirnment Variables Button

-> Find path under System Variable section, select it and click edit button

-> It will open a pop up window , append %Java Installation Dir%\bin (make sure that before adding this value, you are placing a semicolon (;) and then appending the value. Semi colon is used as a separator between two different location in the Path Variable.) at the end in the Value field.

Note : %Java Installation Dir% means the folder where you have installed the java,but the path you have given upto bin folder under installed folder as it contains javac.exe (java compiler) and java.exe (executs Java )

Save your changes.

How to verify:

1.Open a command prompt

2. type java -version and press enter

if you are able to see some text on command prompt as

java version "1.5.0_14"

Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_14-b03)

Java HotSpot(TM) Client VM (build 1.5.0_14-b03, mixed mode, sharing)

Means Java is installed properly and your pc environment path is set to compile and run a java program.

If you are unable to get the above mentioned text, please verify whether you set the Environment variable properly as well as check the location you provided.

I hope it will help you to understand how to set path in computer to run java program.

How to install Java on my machine

Before running any Java program you need to have the Java installed on your machine. Normally beginners gets confused with different terminologies used in Java such as jdk,j2se,jre,jvm etc..

JDK - Java Development Kit/ J2SE( Java 2 Standard Edition)

JRE - Java Runtime Envrionment

JVM - Java Virtual Machine

All the above three are different , but if you install JDK, you will get JRE and JVM, if you install JRE , you will get JVM by defualt.

I tried to clear the concept so that before installing it may be bit less troublesome while installing Java for the first time.

About installing.. If you are installing Java on your machine for the purpose of writing code then you have to install the Java Development kit (jdk) , latest version will be good.

You can download JDK(1.5) from this location :

http://java.sun.com/javase/downloads/index_jdk5.jsp

After downloading , just double click on the exe file, which you have downloaded .

It will ask for the location where to install the software( by default it takes C:\Program Files), its upto your choice where you want to install it.I normally install in a separate folder as some times during the path setup on my machine , i was forced to modify the folder name C:\Program FIles to C:\Progra~1 as due to space in the folder name, PC unable to find the installed location.

Thats it.. wait till the installation is complete.