Dear Support Team,

The zero-argument constructor of JDateChooser class throws NullPointerException in the new JForex versions 3.0 (DDS2-jClient-JForex 3.0.x). In other words, the source code you have recently taken from jcalendar and added to JForex API contains a bug in the com.dukascopy.ui.components.calendar.JDateChooser class.
Note that it is not a top priority issue as it is easy to work around by adding jcalendar:jcalendar:1.3.3 or com.toedter:jcalendar:1.4 to the user project POM. However, you are kindly requested to fix it in the next release or the one after that.
Should you require a sample code for the reproduction or the stack trace, I will assist you.

Regards,
Argiris

PS:
My versions are: Win 10 64 bit, JDK 1.8.0_111, JForex (DDS2-jClient-JForex) 3.0.15, NetBeans 8.1

Please describe how to reproduce the NullPointerException.

In my code, the constructor is called in the simplest way from swing's Event Dispatch Thread:

JDateChooser dateChooser = new JDateChooser();

This line is the first line in the constructor of a class that extends JPanel. That's enough to provoke the exception.

I have two IDE projects. The first one is a library with JForex dependency (with artefact com.dukascopy.dds2:DDS2-jClient-JForex:3.0.15 in the POM file). The second one has a dependency on the first (library) project. That latter project's source code contains the mentioned invocation of the nullary constructor.

The stack trace I receive is as follows:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
   at com.dukascopy.ui.components.textfield.CommonFormattedTextField.decorateFonts(CommonFormattedTextField.java:217)
   at com.dukascopy.ui.components.textfield.CommonFormattedTextField.updateUI(CommonFormattedTextField.java:184)
   at com.dukascopy.ui.components.calendar.JTextFieldDateEditor.updateUI(JTextFieldDateEditor.java:148)
   at javax.swing.text.JTextComponent.<init>(JTextComponent.java:312)
   at javax.swing.JTextField.<init>(JTextField.java:231)
   at javax.swing.JTextField.<init>(JTextField.java:172)
   at javax.swing.JFormattedTextField.<init>(JFormattedTextField.java:276)
   at com.dukascopy.ui.components.textfield.CommonFormattedTextField.<init>(CommonFormattedTextField.java:60)
   at com.dukascopy.ui.components.calendar.JTextFieldDateEditor.<init>(JTextFieldDateEditor.java:110)
   at com.dukascopy.ui.components.calendar.JTextFieldDateEditor.<init>(JTextFieldDateEditor.java:107)
   at com.dukascopy.ui.components.calendar.JTextFieldDateEditor.<init>(JTextFieldDateEditor.java:99)
   at com.dukascopy.ui.components.calendar.JDateChooser.<init>(JDateChooser.java:171)
   at com.dukascopy.ui.components.calendar.JDateChooser.<init>(JDateChooser.java:91)
   at com.argiris... <*** my source code, the line mentioned above ***>