FULL PRODUCT VERSION :
java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b15, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Linux DEKA01-B04014-PC0004 3.13.0-105-generic #152-Ubuntu SMP Fri Dec 2 15:37:11 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux


A DESCRIPTION OF THE PROBLEM :
The reuse of cells in TableView seems to result in cells having the edit state when they should not.

There is also a related old question on StackOverflow: http://stackoverflow.com/questions/40561979/javafx-table-view-cell-reuse

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
My programm consists of an editable TableView with 60 rows. On program start 17 are visible without scrolling. I put a cell on the first row in edit state by clicking on it. While that cell is in edit state, I scroll down. In regular intervalls the cells further down are in edit state, too.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Only one cell should be in edit state.
ACTUAL -
About every 20th cell is is in edit mode.

REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.IntStream;

import javafx.application.Application;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.collections.FXCollections;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.cell.TextFieldTableCell;
import javafx.scene.layout.BorderPane;
import javafx.stage.Stage;

public class TableViewMain extends Application {
    private TableView<Person> table = new TableView<>();
    public static void main(final String[] args) {
        launch(args);
    }
    
    private static class Person {
        StringProperty age = new SimpleStringProperty(this, "age");
        
        Person(final String age) {
            this.age.set(age);
        }
        
        StringProperty ageProperty() {
            return age;
        }
        
    }
 
    @Override
    public void start(final Stage stage) {
        final Scene scene = new Scene(new Group());
        stage.setTitle("Table View Sample");
        stage.setWidth(300);
        stage.setHeight(500);
  
        table.setEditable(true);
 
        final TableColumn<Person, String> column = new TableColumn<Person, String>("Age");
        column.setCellValueFactory(data -> data.getValue().ageProperty());
        column.setCellFactory(TextFieldTableCell.forTableColumn());
        
        final List<Person> data = IntStream.range(0, 60).mapToObj(i -> new Person(Integer.toString(i))).collect(Collectors.toList());
        table.setItems(FXCollections.observableList(data));
 
        table.getColumns().add(column);
        
        final BorderPane pane = new BorderPane();
        pane.setCenter(table);
        scene.setRoot(pane);
  
        stage.setScene(scene);
        stage.show();
    }
}
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
There is aworkaround mentioned on stackoverflow that I have not tried: http://stackoverflow.com/questions/40561979/javafx-table-view-cell-reuse