1 /*
2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * Portions Copyright (c) 2012 IBM Corporation
26 */
27
28 /*
29 * @test
30 * @key headful
31 * @bug 7055065
32 * @summary NullPointerException when sorting JTable with empty cell
33 * @author Jonathan Lu
34 * @library ../../regtesthelpers/
35 * @build Util
36 * @run main bug7055065
37 */
38
39 import java.awt.Dimension;
40 import java.awt.Point;
41 import java.awt.Rectangle;
42 import java.awt.Robot;
43 import java.awt.Toolkit;
44 import java.awt.event.InputEvent;
45 import java.awt.event.KeyEvent;
46 import javax.swing.JFrame;
47 import javax.swing.JPanel;
48 import javax.swing.JScrollPane;
49 import javax.swing.JTable;
50 import javax.swing.SwingUtilities;
51 import javax.swing.table.AbstractTableModel;
52 import javax.swing.table.TableModel;
53 import javax.swing.table.TableRowSorter;
54 import sun.awt.SunToolkit;
55 import java.util.concurrent.Callable;
56
57 public class bug7055065 {
58
59 private static JTable table;
60
61 public static void main(String[] args) throws Exception {
62 SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
63 Robot robot = new Robot();
64
65 SwingUtilities.invokeAndWait(new Runnable() {
66
67 public void run() {
68 createAndShowUI();
69 }
70 });
71
72 toolkit.realSync();
73 clickCell(robot, 1, 1);
74 Util.hitKeys(robot, KeyEvent.VK_BACK_SPACE, KeyEvent.VK_BACK_SPACE,
75 KeyEvent.VK_BACK_SPACE);
76
77 toolkit.realSync();
78 clickColumnHeader(robot, 1);
79
80 toolkit.realSync();
81 clickColumnHeader(robot, 1);
82 }
83
84 private static void clickCell(Robot robot, final int row, final int column)
85 throws Exception {
86 Point point = Util.invokeOnEDT(new Callable<Point>() {
87 @Override
88 public Point call() throws Exception {
89 Rectangle rect = table.getCellRect(row, column, false);
90 Point point = new Point(rect.x + rect.width / 2, rect.y
91 + rect.height / 2);
92 SwingUtilities.convertPointToScreen(point, table);
93 return point;
94 }
95 });
96
97 robot.mouseMove(point.x, point.y);
98 robot.mousePress(InputEvent.BUTTON1_MASK);
99 robot.mouseRelease(InputEvent.BUTTON1_MASK);
100 }
101
102 private static void clickColumnHeader(Robot robot, final int column)
103 throws Exception {
104 Point point = Util.invokeOnEDT(new Callable<Point>() {
105 @Override
106 public Point call() throws Exception {
107 Rectangle rect = table.getCellRect(0, column, false);
108 int headerHeight = table.getTableHeader().getHeight();
109 Point point = new Point(rect.x + rect.width / 2, rect.y
110 - headerHeight / 2);
111 SwingUtilities.convertPointToScreen(point, table);
112 return point;
113 }
114 });
115
116 robot.mouseMove(point.x, point.y);
117 robot.mousePress(InputEvent.BUTTON1_MASK);
118 robot.mouseRelease(InputEvent.BUTTON1_MASK);
119 }
120
121 private static void createAndShowUI() {
122 JFrame frame = new JFrame("SimpleTableDemo");
123 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
124
125 JPanel newContentPane = new JPanel();
126 newContentPane.setOpaque(true);
127 frame.setContentPane(newContentPane);
128
129 final String[] columnNames = { "String", "Number" };
130 final Object[][] data = { { "aaaa", new Integer(1) },
131 { "bbbb", new Integer(3) }, { "cccc", new Integer(2) },
132 { "dddd", new Integer(4) }, { "eeee", new Integer(5) } };
133 table = new JTable(data, columnNames);
134
135 table.setPreferredScrollableViewportSize(new Dimension(500, 400));
136 table.setFillsViewportHeight(true);
137
138 TableModel dataModel = new AbstractTableModel() {
139
140 public int getColumnCount() {
141 return columnNames.length;
142 }
143
144 public int getRowCount() {
145 return data.length;
146 }
147
148 public Object getValueAt(int row, int col) {
149 return data[row][col];
150 }
151
152 public String getColumnName(int column) {
153 return columnNames[column];
154 }
155
156 public Class<?> getColumnClass(int c) {
157 return getValueAt(0, c).getClass();
158 }
159
160 public boolean isCellEditable(int row, int col) {
161 return col != 5;
162 }
163
164 public void setValueAt(Object aValue, int row, int column) {
165 data[row][column] = aValue;
166 }
167 };
168 table.setModel(dataModel);
169 TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
170 dataModel);
171 table.setRowSorter(sorter);
172
173 JScrollPane scrollPane = new JScrollPane(table);
174 newContentPane.add(scrollPane);
175
176 frame.pack();
177 frame.setLocation(0, 0);
178 frame.setVisible(true);
179 }
180 }