public IJavaProject getProject() throws NullPointerException {

    IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
    if (window != null)
    {
        IStructuredSelection selection = (IStructuredSelection) window.getSelectionService().getSelection();
        Object firstElement = selection.getFirstElement();
        if (firstElement instanceof IAdaptable)
        {
            IProject project = (IProject)((IAdaptable)firstElement).getAdapter(IProject.class);
         IJavaProject javaProject = JavaCore.create(project);

            return javaProject;
        }
    }
    return null;

}