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 /* @test 1.1 2012/04/19
29 * @bug 7055065
30 * @summary NullPointerException when sorting JTable with empty cell
31 * @author Jonathan Lu
32 * @library ../../regtesthelpers/
33 * @build Util
34 * @run main bug7055065
35 */
36
37 import java.awt.Dimension;
38 import java.awt.Point;
39 import java.awt.Rectangle;
40 import java.awt.Robot;
41 import java.awt.event.InputEvent;
42 import java.awt.event.KeyEvent;
43 import javax.swing.JFrame;
44 import javax.swing.JPanel;
45 import javax.swing.JScrollPane;
46 import javax.swing.JTable;
47 import javax.swing.SwingUtilities;
48 import javax.swing.table.AbstractTableModel;
49 import javax.swing.table.TableModel;
50 import javax.swing.table.TableRowSorter;
51 import java.util.concurrent.Callable;
52
53 public class bug7055065 {
54
55 private static JTable table;
56
57 public static void main(String[] args) throws Exception {
58 Robot robot = new Robot();
59
60 SwingUtilities.invokeAndWait(new Runnable() {
61
62 public void run() {
63 createAndShowUI();
64 }
65 });
66
67 robot.waitForIdle();
68 clickCell(robot, 1, 1);
69 Util.hitKeys(robot, KeyEvent.VK_BACK_SPACE, KeyEvent.VK_BACK_SPACE,
70 KeyEvent.VK_BACK_SPACE);
71
72 robot.waitForIdle();
73 clickColumnHeader(robot, 1);
74
75 robot.waitForIdle();
76 clickColumnHeader(robot, 1);
77 }
78
79 private static void clickCell(Robot robot, final int row, final int column)
80 throws Exception {
81 Point point = Util.invokeOnEDT(new Callable<Point>() {
82 @Override
83 public Point call() throws Exception {
84 Rectangle rect = table.getCellRect(row, column, false);
85 Point point = new Point(rect.x + rect.width / 2, rect.y
86 + rect.height / 2);
87 SwingUtilities.convertPointToScreen(point, table);
88 return point;
89 }
90 });
91
92 robot.mouseMove(point.x, point.y);
93 robot.mousePress(InputEvent.BUTTON1_MASK);
94 robot.mouseRelease(InputEvent.BUTTON1_MASK);
95 }
96
97 private static void clickColumnHeader(Robot robot, final int column)
98 throws Exception {
99 Point point = Util.invokeOnEDT(new Callable<Point>() {
100 @Override
101 public Point call() throws Exception {
102 Rectangle rect = table.getCellRect(0, column, false);
103 int headerHeight = table.getTableHeader().getHeight();
104 Point point = new Point(rect.x + rect.width / 2, rect.y
105 - headerHeight / 2);
106 SwingUtilities.convertPointToScreen(point, table);
107 return point;
108 }
109 });
110
111 robot.mouseMove(point.x, point.y);
112 robot.mousePress(InputEvent.BUTTON1_MASK);
113 robot.mouseRelease(InputEvent.BUTTON1_MASK);
114 }
115
116 private static void createAndShowUI() {
117 JFrame frame = new JFrame("SimpleTableDemo");
118 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
119
120 JPanel newContentPane = new JPanel();
121 newContentPane.setOpaque(true);
122 frame.setContentPane(newContentPane);
123
124 final String[] columnNames = { "String", "Number" };
125 final Object[][] data = { { "aaaa", new Integer(1) },
126 { "bbbb", new Integer(3) }, { "cccc", new Integer(2) },
127 { "dddd", new Integer(4) }, { "eeee", new Integer(5) } };
128 table = new JTable(data, columnNames);
129
130 table.setPreferredScrollableViewportSize(new Dimension(500, 400));
131 table.setFillsViewportHeight(true);
132
133 TableModel dataModel = new AbstractTableModel() {
134
135 public int getColumnCount() {
136 return columnNames.length;
137 }
138
139 public int getRowCount() {
140 return data.length;
141 }
142
143 public Object getValueAt(int row, int col) {
144 return data[row][col];
145 }
146
147 public String getColumnName(int column) {
148 return columnNames[column];
149 }
150
151 public Class<?> getColumnClass(int c) {
152 return getValueAt(0, c).getClass();
153 }
154
155 public boolean isCellEditable(int row, int col) {
156 return col != 5;
157 }
158
159 public void setValueAt(Object aValue, int row, int column) {
160 data[row][column] = aValue;
161 }
162 };
163 table.setModel(dataModel);
164 TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
165 dataModel);
166 table.setRowSorter(sorter);
167
168 JScrollPane scrollPane = new JScrollPane(table);
169 newContentPane.add(scrollPane);
170
171 frame.pack();
172 frame.setLocation(0, 0);
173 frame.setVisible(true);
174 }
175 }