TableHeaderRendererExceptionTest.java

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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 * 2 along with this work; if not, write to the Free Software Foundation,
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import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import javax.swing.table.JTableHeader;

/**
 * @test
 * @summary Tests whether getTableCellRendererComponent() method handles
 *          null table parameter
 * @bug 8020039
 * @run main TableHeaderRendererExceptionTest
 */
public class TableHeaderRendererExceptionTest {

    public static void main(String[] args) throws Throwable {
        //Execute test for all supported look and feels
        UIManager.LookAndFeelInfo[] lookAndFeelArray
                = UIManager.getInstalledLookAndFeels();

        for (UIManager.LookAndFeelInfo lookAndFeelItem : lookAndFeelArray) {
            String lookAndFeelString = lookAndFeelItem.getClassName();
            try{
                UIManager.setLookAndFeel(lookAndFeelString);
            } catch (final UnsupportedLookAndFeelException ignored) {
                continue;
            }

            // Test getTableCellRendererComponent method by passing null table
            JTableHeader header = new JTableHeader();

            header.getDefaultRenderer().getTableCellRendererComponent(null,
                    " test ", true, true, -1, 0);
        }
    }
}