Is it ok to compile and run a Java application on different JDK versions and architectures?

Solution Verified - Updated -

Issue

  • We would like to consolidate several Java application into a 64 bit system.

  • The applications are compiled on different JDK releases and 32 bit.

  • There is no native code in the application.

  • Are there any compatibility or performance concerns among JDK versions, 32 bit vs 64 bit, or 1.5 vs 1.6?

Environment

  • Java

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