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wht problems arises when migrating from websphere3.5 to 5.1

 
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we have application developed using websphere3.5, but we wnt to migrate the environment to websphere5.1 . wht r the problem and things to be take care while doing so? it is urgent plz help me
 
Greenhorn
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Hi,

Refer to this Whitepaper ..it gives you some insight and links

http://www-106.ibm.com/developerworks/websphere/zones/was/35to50migrationbenefits.html


Thanks
Rhodeo
 
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The biggest problem you'll likely have is that 3.5 does not enforce J2EE standards, particularly in packaging. If you already build and deploy as jar-in-war-in-ear with appropriate deployment descriptors, you're in good shape. However, I'd bet money that if you're on WAS 3.5 you aren't doing this and your dependencies are a veritible hodge-podge of evolution... leaving you in for a rough ride.

BTDT. Good Luck...
 
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