Bug ID: JDK-7022041 TitleBorder Null Pointer Exception

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JDK 8
8 b49Fixed

FULL PRODUCT VERSION :
java version "1.7.0-ea"
Java(TM) SE Runtime Environment (build 1.7.0-ea-b130)
Java HotSpot(TM) Client VM (build 21.0-b02, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows XP Proffesional 2002 Service pack 3

A DESCRIPTION OF THE PROBLEM :
The following code snipped compiles and run perfectly under JDK 1.6.24
Under JDK 1.7.0-ea it issues a Null Pointer Exception at setTitleFont line


TitledBorder title;
BorderFactory.createTitledBorder(BorderFactory.createRaisedBevelBorder(), "test");
title.setTitleJustification(TitledBorder.LEFT);
title.setTitleFont(title.getTitleFont().deriveFont(Font.BOLD));



REPRODUCIBILITY :
This bug can be reproduced always.

CUSTOMER SUBMITTED WORKAROUND :
By the moment, not found any.

EVALUATION http://hg.openjdk.java.net/hsx/hotspot-comp/jdk/rev/4d750ca79fb7
14-08-2012
EVALUATION Javadoc for TitledBorder says: * If the border, font, or color property values are not * specified in the constuctor or by invoking the appropriate * set methods, the property values will be defined by the current * look and feel, using the following property names in the * Defaults Table: * <ul> * <li>"TitledBorder.border" * <li>"TitledBorder.font" * <li>"TitledBorder.titleColor" * </ul> Therefore we should initialize that properties as described.
27-04-2012
EVALUATION It is not a bug, because the method does not declare that it always returns non-null value. It depends on used L&F. Before the 4129681 fix some L&Fs returned non-null value, but such behaviour contradicts the JavaBeans specification and a titled border could not be correctly stored using the long-term persistence as specified.
19-04-2011
WORK AROUND User could use the following workaround: Font font = UIManager.getDefaults().getFont("TitledBorder.font"); But he should check that the font is not null.
19-04-2011
EVALUATION Here is the test which shows that title.getFont() returns null import javax.swing.*; import javax.swing.border.TitledBorder; import java.awt.Font; public class b7022041 extends JFrame { public static void main(String... args) throws Exception { SwingUtilities.invokeLater(new Runnable() { public void run() { TitledBorder title = BorderFactory.createTitledBorder(BorderFactory.createRaisedBevelBorder(), "test"); title.setTitleJustification(TitledBorder.LEFT); Font font = title.getTitleFont(); System.out.println("font = " + font); title.setTitleFont(font.deriveFont(Font.BOLD)); } }); } }
19-04-2011

Duplicate :	JDK-7148436 - SE7 swing TitledBorder.getFont() now returns null
Duplicate :	JDK-8013570 - Null pointer exception is now returned from TitledBorder::getTitleFont()
Duplicate :	JDK-7117283 - NullpointerException when using TitleBorder.getTitleFont
Relates :	JDK-8024777 - TitledBorder.getTitleFont() return null
Relates :	JDK-4129681 - Cannot get a title border to display its label as disabled