Multiple classes accessing the same DLL???

Question

This behaviour is completely unacceptable.
Let's visualise my app:
There a 2 java classes:
     ClassA:
          public String[] getPaths(){
               return getNativePaths();
          public native String[] getNativePaths();
          static{
               System.loadLibrary("mylib");
          }     ClassB:
          public void setPaths(String[] paths){
               setNativePaths(paths);
          public native void setNativePaths(String[] paths);
          static{
               System.loadLibrary("mylib");
          }     MainClass:
          public void testA(){
               ClassB clsB=new ClassB();
               String paths[]={"c:\\test.txt"};
               clsB.setPaths(paths);
          public void testB(){
               ClassA clsA=new ClassA();
               String paths[]=clsA.getPaths();
          public void testC(){
               ClassA clsA=new ClassA();
               String[] paths=clsA.getPaths();
               clsA=null;
               ClassB clsB=new ClassB();
               clsB.setPaths(paths);
          }Method testA and testB in MainClass don't pose any problems, they work fine. :)
But when calling testC, I get this:
java.lang.UnsatisfiedLinkError: no mylib in java.library.path
     at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1403)
     at java.lang.Runtime.loadLibrary0(Runtime.java:788)
     at java.lang.System.loadLibrary(System.java:832)
     ...ClassA and ClassB both work good if used separately (another thread). But if we call one after another (same thread), an exception is thrown.
So, what's the problem here?
Is it the return of a string array?

Answer 1

1 remark:
If I do this:
    ClassA clsA=new ClassA();
    ClassB clsB=new ClassB();
    clsB.setPaths(clsA.getPaths());This works, but if you call the dll again after this, you'll get the same exception over and over again.
I think it has something to do with the release of strings (cause there isn't any).
My native code that returns an array of Strings:
    jobjectArray strArray=null;
    strArray=env->NewObjectArray(nSize,env->FindClass("java/lang/String"),env->NewStringUTF(""));
    // loop
    env->SetObjectArrayElement(strArray,nCount,env->NewStringUTF(dlg->GetNextPathName(pos)));
    nCount++;
    return strArray;