[vtkusers] GetVtkId returns weird values (Java wrapper)

[Victor Johnsson]

Hello,
the short example below creates a vtkConeSource and shows its GetVtkId() result. As far as I understand, the returned id should be the memory address of the native object.

When I run the program several times, most of the time the id returns a value in the range of 139e12 .. 141e12 which is very weird. Only sometimes a valid pointer is returned. Why??

(I need the pointer of vtkObjects created in Java to pass them to native c++ functions.)

Cheers
Victor

 
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package cone5;

import vtk.vtkConeSource;

public class CopyOfCone5 {
  static { 
    System.loadLibrary("vtkCommonJava"); 
    System.loadLibrary("vtkFilteringJava"); 
    System.loadLibrary("vtkIOJava"); 
    System.loadLibrary("vtkImagingJava"); 
    System.loadLibrary("vtkGraphicsJava"); 
    System.loadLibrary("vtkRenderingJava"); 
  }

  public static void main (String []args) throws Exception {
    vtkConeSource cone = new vtkConeSource();
    System.err.println("id="+cone.GetVTKId());
  }
}
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