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.event.InputEvent;
44 import java.awt.event.KeyEvent;
45 import javax.swing.JFrame;
46 import javax.swing.JPanel;
47 import javax.swing.JScrollPane;
48 import javax.swing.JTable;
49 import javax.swing.SwingUtilities;
50 import javax.swing.table.AbstractTableModel;
51 import javax.swing.table.TableModel;
52 import javax.swing.table.TableRowSorter;
53 import java.util.concurrent.Callable;
54
55 public class bug7055065 {
56
57 private static JTable table;
58
59 public static void main(String[] args) throws Exception {
60 Robot robot = new Robot();
61
62 SwingUtilities.invokeAndWait(new Runnable() {
63
64 public void run() {
65 createAndShowUI();
66 }
67 });
68
69 robot.waitForIdle();
70 clickCell(robot, 1, 1);
71 Util.hitKeys(robot, KeyEvent.VK_BACK_SPACE, KeyEvent.VK_BACK_SPACE,
72 KeyEvent.VK_BACK_SPACE);
73
74 robot.waitForIdle();
75 clickColumnHeader(robot, 1);
76
77 robot.waitForIdle();
78 clickColumnHeader(robot, 1);
79 }
80
81 private static void clickCell(Robot robot, final int row, final int column)
82 throws Exception {
83 Point point = Util.invokeOnEDT(new Callable<Point>() {
84 @Override
85 public Point call() throws Exception {
86 Rectangle rect = table.getCellRect(row, column, false);
87 Point point = new Point(rect.x + rect.width / 2, rect.y
88 + rect.height / 2);
89 SwingUtilities.convertPointToScreen(point, table);
90 return point;
91 }
92 });
93
94 robot.mouseMove(point.x, point.y);
95 robot.mousePress(InputEvent.BUTTON1_MASK);
96 robot.mouseRelease(InputEvent.BUTTON1_MASK);
97 }
98
99 private static void clickColumnHeader(Robot robot, final int column)
100 throws Exception {
101 Point point = Util.invokeOnEDT(new Callable<Point>() {
102 @Override
103 public Point call() throws Exception {
104 Rectangle rect = table.getCellRect(0, column, false);
105 int headerHeight = table.getTableHeader().getHeight();
106 Point point = new Point(rect.x + rect.width / 2, rect.y
107 - headerHeight / 2);
108 SwingUtilities.convertPointToScreen(point, table);
109 return point;
110 }
111 });
112
113 robot.mouseMove(point.x, point.y);
114 robot.mousePress(InputEvent.BUTTON1_MASK);
115 robot.mouseRelease(InputEvent.BUTTON1_MASK);
116 }
117
118 private static void createAndShowUI() {
119 JFrame frame = new JFrame("SimpleTableDemo");
120 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
121
122 JPanel newContentPane = new JPanel();
123 newContentPane.setOpaque(true);
124 frame.setContentPane(newContentPane);
125
126 final String[] columnNames = { "String", "Number" };
127 final Object[][] data = { { "aaaa", new Integer(1) },
128 { "bbbb", new Integer(3) }, { "cccc", new Integer(2) },
129 { "dddd", new Integer(4) }, { "eeee", new Integer(5) } };
130 table = new JTable(data, columnNames);
131
132 table.setPreferredScrollableViewportSize(new Dimension(500, 400));
133 table.setFillsViewportHeight(true);
134
135 TableModel dataModel = new AbstractTableModel() {
136
137 public int getColumnCount() {
138 return columnNames.length;
139 }
140
141 public int getRowCount() {
142 return data.length;
143 }
144
145 public Object getValueAt(int row, int col) {
146 return data[row][col];
147 }
148
149 public String getColumnName(int column) {
150 return columnNames[column];
151 }
152
153 public Class<?> getColumnClass(int c) {
154 return getValueAt(0, c).getClass();
155 }
156
157 public boolean isCellEditable(int row, int col) {
158 return col != 5;
159 }
160
161 public void setValueAt(Object aValue, int row, int column) {
162 data[row][column] = aValue;
163 }
164 };
165 table.setModel(dataModel);
166 TableRowSorter<TableModel> sorter = new TableRowSorter<TableModel>(
167 dataModel);
168 table.setRowSorter(sorter);
169
170 JScrollPane scrollPane = new JScrollPane(table);
171 newContentPane.add(scrollPane);
172
173 frame.pack();
174 frame.setLocation(0, 0);
175 frame.setVisible(true);
176 }
177 }