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Can the code developed and running in Websphere application server v5.1 run in Websphere application server v6.0/6.1/7.0 without any problems?

My scenario: Originally, the application developed using Java 1.4 and WAS v5.1. As part of change request, we are going to do some changes in that application. Currently, in my development environment i have RSA(Rational Software Architect) 7.5. It complaint with only WAS v6.0/6.1/7.0. So i can work with one of these WAS version.

  1. Which version i can choose to work for development WAS v6.0/6.1/7.0?

But finally the developed/changed code in WAS6.0/6.1/7.5 will be deployed in WAS v5.1(PRODUCTION) only. I am worried about whether code will run properly or not.

  1. Will i get any complaint problem in this scenario?

Thanks in advance.

Ramasamy
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1 Answers1

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The most important is not to change your compiler settings from 1.4 to the RSA 7.5 default which I believe is 1.5.

In case you compile your source code with higher version of Java and deploy it in a Container which runs on a lower version you are going to have trouble.

Generally it is safe to run and test your legacy app on a higher WAS version but keep your eyes on the compiler settings as I mentioned.

trikelef
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