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dotNet4Java - Integrating .Net into Java

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The dotNet4Java is a .Net Runtime Library for Java which helps Java developers work with .Net framework and 3rd party libraries in Java with ease. It is designed to provide a way to interact with applications written in anyone of the .Net languages (such as C#, Visual Basic.Net, Delphi.Net, JScript.Net, etc) from Java.

The easiest and the most efficient Java and .NET integration technology in the market. Our product helps software companies to integrate Java and .NET with the highest performance, reliability and flexibility to build the cross-technology web, desktop or server applications. dotNet4Java is the best native Java and .NET bridge on the market. Today's world is using two dominating software development platforms .NET and Java equally distributed across products and devices. dotNet4Java enables different industries to access broader markets with their products by exposing existing solutions for both technologies. For end-consumers dotNet4Java allows to share purchased products between .NET and Java teams or access critical modules and devices not available in the preferred technology.

What dotNet4Java can do:
  • Access .Net Framework Class Library (such as Collections, IO, Networking, Security, Cryptogrphy etc).
  • Access 3rd Party .Net Libraries.
  • Hosts the .Net Common Language Runtime (CLR) in Java.
  • Can load and access assemblies/types from 3rd party .Net libraries or executable files.
  • Can load and access .Net assemblies/types from Global Assembly Cache (GAC)
  • Can invoke members of a .Net types (such as constructor, fields, properties, methods and events).
  • Can create instance of .Net object.
  • Can handle .Net exceptions.
  • Can handle, access and invoke .Net events.
  • ...and many more.

  • Competitive Advantages
  • Full access to .Net Framework Class Library (Including new and emerging .NET technologies).
  • dotNet4Java is single jar file that can be very easily added to any type of Java project EJB, applet, desktop, console or service.
  • dotNet4Java JAR can be easily added to artefacts repository like maven or ivy.
  • No extra dll is required when deployed.
  • There is no configuration required and no external tools installation needed. Project can be moved shared across developer and build & test machines with just granting access to source code and transitioned to production within the main application archive.
  • Allows Java to consume .Net libraries as if they were native code.
  • When it comes to advanced libraries which use complex objects as method arguments, results, utilize event, callbacks and asynchronous invocation many alternatives become unacceptable whereas dotNet4Java starts to shine with intuitive and easy way of working with such objects almost like using single technology stack.
  • Lightweight and easy to use.
  • There are tools to import and generate .Net Libraries into Java class files.

  • Example

    How to use Activator to Create instance of a .Net Object

    For more examples, go to
    For more information about dotNet4Java, go to
    For documentation about dotNet4Java, go to

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