Trouble with two DLLs

Question

Hi all!
I compiled two DLLs with exactly the same signatures but different functions in the methods.
When I execute my application only the first DLL is loaded and I can only use the functions of this DLL.
The java code:
public class Dienst
private native String GetModulNameDLL();
public Dienst(String DLLName)
System.loadLibrary(DLLName);
public static void main (String args[])
Dienst BspModul2 = new Dienst("Modul2");
System.out.println("Modulname: " + BspModul2.GetModulNameDLL());
Dienst BspModul1 = new Dienst("Modul1");
System.out.println("Modulname: " + BspModul1.GetModulNameDLL());
The function GetModulNameDLL ist different in the files Modul2.dll and Modul1.dll. But every time I
execute the code I only get the value of GetModulNameDLL() of the File Modul2.dll for two times.
Thanks

Answer 1

That isn't going to work.
A class, which is different that the instance of a class, is loaded only once. And each method of the class is resolved only once. So in your first println() call the method is resolved, so it points to the first dll. The second call to println() does not try to resolve anything, it just calls what it is already attached to.
I am pretty sure there is no way to do this. For instance a class loader will actually load to instances of the class and resolve the method twice. However the problem is that the dll has exactly the same method signature - regardless of the class loader. Consequently the first dll will always be used to resolve the signature.