[vtkusers] Bug in vtk java wrapper

[Ali -]

David,

Obviously you can make a java class abstract the way that you do it in c++. 
However, this does not solve the problem, as some other concrete classes 
derived from this class have the same poblem. Eg, this produces the same 
error:

vtkPolyData obj = new vtkPolyData();
obj.GetMTime();

>
>Do you have a recommendation about how to fix this?
>Is there a way to label a java class as abstract so that it cannot be 
>instantiated? (i.e. - "new vtkAbstractClass();" would be a java compile 
>failure...)
>
>Thanks,
>David
>
>Ali - wrote:
>
>>Hi,
>>
>>Running the following java code causes an error detected by hotspot 
>>virtual machine:
>>
>>vtkPointSet obj = new vtkPointSet();
>>obj.GetMTime();
>>
>>The reason is that vtkJavaGetPointerFromObject() in vtkJavaUtil returns 
>>NULL and the generated JNI wrapper does not validate the pointer. This 
>>error happens when the class and/or at least one of the cuper classes are 
>>abstract. I understand that the user does not need to create an abstract 
>>class, but, this bug is annoying.
>>
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