.NET-Java Interoperability

Ja.NET: A Java compiler for .NET CLR

Early last month I wrote an article about Java application frameworks being ported to .NET. The piece caused a bit of commotion on our sister site TheServerSide.net, and it also brought to my attention a related project.

All of those ports start with the idea that it’d be nice to use established Java frameworks and paradigms in .NET and come up with the natural solution, which is to port the software. But there’s another approach, too: why not just compile those existing frameworks to work with .NET’s CLR?

That’s the idea behind Ja.NET SE, an open source project based on the Apache Harmony compiler for Java. Instead of targeting Java bytecode, Ja.NET compiles to Microsoft’s Common Intermediate Language (CIL), which the .NET runtime then consumes natively.

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JNI for MSMQ

A JNI library for MSMQ has just been added to the collection of downloadable software on CodePlex. It is basic, and will grow depending on peoples’ interest. The library allows Java applications to connect to MSMQ on Windows.