We've developed a Java application and would like to use this application from a C# client. The application has dependencies on Spring, Log4j, ...
What would be the most efficient mechanism - make DLL(s) from Java code, ... - to achieve this ?
4 Answers
It is really awesome. The only problem is that it DOES add ~30MB to the project. log4net and Spring .NET are available as well, but if living with existing code, go the ikvm route.
1 Comment
Todd Stout
In the latest version of IKVM, the JDK library is broken out into separate assemblies. Depending on what you need, you probably won't have the full 30MB of baggage anymore. The jdk core assembly is about 5 MB.
I am author of jni4net, open source interprocess bridge between JVM and CLR. It's build on top of JNI and PInvoke. No C/C++ code needed. I hope it will help you.
2 Comments
Sai Ram Reddy
Hi Pavel, Does the jni4net framework works in the Linux environment now?
Sai Ram Reddy
Thanks, Pavel, Can you recommend what can I use to call the Java from my .net core, please. Do you think C++ wrapper is viable?
alternatively you could write a webservice/xmlrpc layer between the two.
I seem to remember that there is a tool calles grassshopper that will compile your .Net code into JVM bytecode.
I've also heard good things about IKVM
Comments
There are so many options,
sockets
web services
Message bus
Use a/any database! (sorry if sound silly)
Here's a discussion which may be handy: https://gridwizard.wordpress.com/2015/01/14/java-and-dotnet-interop
Really depends on what you're building!
2 Comments
Pekka
The OP specifically requested 'calling'. All the approaches you identify involve 'sending messages'. The last - database - option is arguably even less direct by requiring polling of a staging table.
Vaidotas Beržinskas
Would add to the list gRPC streaming with proto3.