How to bridge Java to CATIA COM API with com4j

Here is the C++ code:

#import "path\to\catia\intel_a\code\bin\InfTypeLib.tlb" no_namespace

// ...

ApplicationPtr catia;

catia.CreateInstance("CATIA.Application");

catia->PutVisible(VARIANT_TRUE);

I want to call the same CATIA API in Java with com4j. According to com4j tutorial page, the Java definitions were generated by following command:

java -jar ..\..\tlbimp.jar -o catia -p catia InfTypeLib.tlb

But the result ClassFactory has no static methods to create COM objects.

import com4j.*;

/**
 * Defines methods to create COM objects
 */
public abstract class ClassFactory {
  private ClassFactory() {} // instanciation is not allowed
}

Then I tried another typelib 'CATIAAppTypeLib.tlb'.

import com4j.*;

/**
 * Defines methods to create COM objects
 */
public abstract class ClassFactory {
  private ClassFactory() {} // instanciation is not allowed


  public static org.huys.catia.AppType._CATIAApp createCATIAAppObj() {
    return COM4J.createInstance( org.huys.catia.AppType._CATIAApp.class, "{5A29422A-F2B0-11D4-A3AA-00D0B756AD5D}" );
  }

  public static org.huys.catia.AppType.CATIAVBAHostingApplication createCATIAVBAHostingApplicationImpl() {
    return COM4J.createInstance( org.huys.catia.AppType.CATIAVBAHostingApplication.class, "{0663D095-471D-11D2-9AA3-00A024941EF0}" );
  }
}

When calling these methods in Java, I got

com4j.ExecutionException: com4j.ComException: 80040154 CoCreateInstance failed : Class not registered : .\com4j.cpp:153

I cannot find the method to create an instance for the Application interface.

Can anyone help me for this? Thanks.

The generated ClassFactory for InfTypeLib.tlb doesn't contain the static method for creating instances of Application.

This can be worked around by add the method manually.

public static catia.Application createApplication() {
    return COM4J.createInstance( org.huys.catia.Application.class, "{87fd6f40-e252-11d5-8040-0010b5fa1031}" );
}

The GUID for "CATIA.Application" can be find in the registry. Or just replace it with the string.