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Asked: 2026-06-09T13:11:03+00:00

I have started porting my server side C# app to Java. One of the

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I have started porting my server side C# app to Java. One of the things it does is dynamic generation of code using the CodeDOM framework, compiling it to bytecode, and loading the class during runtime. There are also scenarios where we have used Expression Tree for lightweight dynamic generation of methods.

I did some research and I believe the closest I came is Javaassist. I would appreciate if there are any other frameworks that supports dynamic code generation and compilation. I am a fresh recruit in the Java world.

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  1. Editorial Team

    There’s the Java Compilation API (for example, http://www.accordess.com/wpblog/an-overview-of-java-compilation-api-jsr-199/).

    If you just need to evaluate expressions, consider any EL, like OGNL or MVEL.

    Groovy, JRuby, and Scala are the most mainstream dynamic languages that allow a huge range of options, from simple expression evaluation to full-blown Java interaction.

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