FULL PRODUCT VERSION :
java 7 letest relese

ADDITIONAL OS VERSION INFORMATION :
using Microsoft windows 7 32bit

EXTRA RELEVANT SYSTEM CONFIGURATION :
nothing special

A DESCRIPTION OF THE PROBLEM :
init:
deps-jar:
Compiling 1 source file to E:\All new Projects\tut\build\classes
warning: [options] bootstrap class path not set in conjunction with -source 1.5
1 warning
compile:
run:
Exception in thread "main" java.lang.NoClassDefFoundError: sun/swing/plaf/synth/SynthUI
        at de.javasoft.plaf.synthetica.SyntheticaDefaultLookup.getDefault(SyntheticaDefaultLookup.java:105)
        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:925)
        at de.javasoft.plaf.synthetica.SyntheticaLookAndFeel$4.propertyChange(SyntheticaLookAndFeel.java:582)
        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:541)
        at tuition.Main.main(Main.java:41)
Caused by: java.lang.ClassNotFoundException: sun.swing.plaf.synth.SynthUI
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
        ... 20 more
Java Result: 1
BUILD SUCCESSFUL (total time: 1 second)


STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
bug occard when running older java application in java 7 reasone fore the bug is that

Caused by: java.lang.ClassNotFoundException: sun.swing.plaf.synth.SynthUI

is missing or any other matter

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
to give the synthetica theme for my application in java 7

ACTUAL -
an error occard saying a class not foud exception
bt this actual code perfectly works in jre 6 and jdk 6 development environment


ERROR MESSAGES/STACK TRACES THAT OCCUR :
 at de.javasoft.plaf.synthetica.SyntheticaDefaultLookup.getDefault(SyntheticaDefaultLookup.java:105)
        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:925)
        at de.javasoft.plaf.synthetica.SyntheticaLookAndFeel$4.propertyChange(SyntheticaLookAndFeel.java:582)
        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:541)
        at tuition.Main.main(Main.java:41)
Caused by: java.lang.ClassNotFoundException: sun.swing.plaf.synth.SynthUI
        at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:356)



REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------

                try {
                  UIManager.setLookAndFeel(new SyntheticaBlueSteelLookAndFeel());
               
                    userlogin user = new userlogin();
                    user.setVisible(true);
                } catch (Exception ex) {
                    ex.printStackTrace();
                }
---------- END SOURCE ----------

CUSTOMER SUBMITTED WORKAROUND :
nothing because of this i had to get blamed from my clients
after they update their system to java 7
alternet was to remove look and feel and add other opesource one!! but it is not the correct anwser to the problem i guess,

SUPPORT :
YES