}
};
final Upload uploadArtifact = new Upload();
uploadArtifact.setCaption("Upload Artifact");
uploadHandler.install(uploadArtifact);
final DragAndDropWrapper finalUploadedArtifacts = new DragAndDropWrapper(uploadedArtifacts);
finalUploadedArtifacts.setDropHandler(new ArtifactDropHandler(uploadHandler));
addListener(new Window.CloseListener() {