Pomoc pri programovaní, odpovede na otázky / Jáva / Nemožno získať prístup k témam syntetiky na nových sieťach 7.4 s najnovšou verziou JDK (1.7.0_45) - java, swing, java-7, vzhľad a dojem, syntetika

Nemožno pristupovať k syntetickým témam na novom netbeans 7.4 s najnovšími verziami JDK (1.7.0_45) - java, swing, java-7, look-and-feel, synthetica

Dnes som bol aktualizovať môj Netbeans 6.8 nové Netbeans 7.4 a JDK 1.7.0 na 1.7.0_45 Keď otvorím svoj predchádzajúci projekt na nový Netbeans verzia sysnthetica look and feel nefunguje :( ďalšie všetko funguje dokonale :)

try {
UIManager.setLookAndFeel(new SyntheticaBlackStarLookAndFeel());

new frm_login().setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}

toto je chyba:

Exception in thread "main" java.lang.NoClassDefFoundError: sun/swing/plaf/synth/SynthUI
at de.javasoft.plaf.synthetica.SyntheticaDefaultLookup.getDefault(SyntheticaDefaultLookup.java:84)
at sun.swing.DefaultLookup.get(DefaultLookup.java:125)
at javax.swing.plaf.basic.BasicButtonListener.getInputMap(BasicButtonListener.java:119)
at javax.swing.plaf.basic.BasicButtonListener.installKeyboardActions(BasicButtonListener.java:95)
at javax.swing.plaf.basic.BasicButtonUI.installKeyboardActions(BasicButtonUI.java:138)
at javax.swing.plaf.basic.BasicButtonUI.installUI(BasicButtonUI.java:90)
at javax.swing.JComponent.setUI(JComponent.java:664)
at javax.swing.AbstractButton.setUI(AbstractButton.java:1807)
at javax.swing.JButton.updateUI(JButton.java:146)
at javax.swing.AbstractButton.init(AbstractButton.java:2172)
at javax.swing.JButton.<init>(JButton.java:136)
at javax.swing.JButton.<init>(JButton.java:90)
at de.javasoft.plaf.synthetica.SyntheticaLookAndFeel.installCompatibilityDefaults(SyntheticaLookAndFeel.java:553)
at de.javasoft.plaf.synthetica.SyntheticaLookAndFeel.access$4(SyntheticaLookAndFeel.java:405)
at de.javasoft.plaf.synthetica.SyntheticaLookAndFeel$2.propertyChange(SyntheticaLookAndFeel.java:313)
at java.beans.PropertyChangeSupport.fire(PropertyChangeSupport.java:335)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:327)
at javax.swing.event.SwingPropertyChangeSupport.firePropertyChange(SwingPropertyChangeSupport.java:92)
at java.beans.PropertyChangeSupport.firePropertyChange(PropertyChangeSupport.java:263)
at javax.swing.UIManager.setLookAndFeel(UIManager.java:545)
at javaapplication1.JavaApplication1.main(JavaApplication1.java:27)
Caused by: java.lang.ClassNotFoundException: sun.swing.plaf.synth.SynthUI
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
... 21 more
Java Result: 1

Aký je dôvod, prečo sa to stalo? Ako to vyriešim?

Vopred ďakujem !