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The process of transforming Java code into Ruby code involves rewriting the code in Ruby syntax and using Ruby-specific libraries and frameworks. It requires a good understanding of both Java and Ruby programming languages as well as knowledge of the differences between them. The steps involve:

1. Understand the Java code: Before starting the process of transformation, it is important to have a good understanding of the Java code that needs to be converted.

2. Identify the functionality: Identify the specific functionality of the Java code that needs to be replicated in Ruby.

3. Translate the code: Translate the Java code into Ruby syntax while taking into account any differences in programming constructs between the two languages.

4. Use Ruby-specific libraries and frameworks: In order to fully replicate the functionality of the Java code in Ruby, it may be necessary to use Ruby-specific libraries and frameworks.

5. Test the Ruby code: Verify that the Ruby code produces the same output as the original Java code.

6. Refactor: Once the Ruby code is functioning correctly, it may be necessary to refactor the code to make it more idiomatic and maintainable.