Photovault does not work properly with Java 6

[harri]

When opening color settings dialog the following exception is thrown:

Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
        at javax.swing.plaf.basic.BasicSliderUI.calculateTrackBuffer(Unknown So
rce)
        at javax.swing.plaf.basic.BasicSliderUI.calculateGeometry(Unknown Sourc
)
        at javax.swing.plaf.basic.BasicSliderUI$Handler.propertyChange(Unknown
ource)
        at javax.swing.plaf.basic.BasicSliderUI$PropertyChangeHandler.propertyC
ange(Unknown Source)
        at javax.swing.plaf.metal.MetalSliderUI$MetalPropertyListener.propertyC
ange(Unknown Source)
        at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
        at java.beans.PropertyChangeSupport.firePropertyChange(Unknown Source)
        at java.awt.Component.firePropertyChange(Unknown Source)
        at javax.swing.JSlider.setLabelTable(Unknown Source)
        at org.photovault.swingui.color.FieldSliderCombo.setupLabels(FieldSliderCombo.java:400)
        at org.photovault.swingui.color.FieldSliderCombo.setLabelTable(FieldSliderCombo.java:189)
        at org.photovault.swingui.color.ColorSettingsDlg.initComponents(ColorSettingsDlg.java:316)
        at org.photovault.swingui.color.ColorSettingsDlg.<init>(ColorSettingsDlg.java:93)
        at org.photovault.swingui.EditSelectionColorsAction.actionPerformed(EditSelectionColorsAction.java:104)
        at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
        at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
        at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
        at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
        at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
        at java.awt.Component.processMouseEvent(Unknown Source)
        at javax.swing.JComponent.processMouseEvent(Unknown Source)
        at java.awt.Component.processEvent(Unknown Source)
        at java.awt.Container.processEvent(Unknown Source)
        at java.awt.Component.dispatchEventImpl(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
        at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
        at java.awt.Container.dispatchEventImpl(Unknown Source)
        at java.awt.Window.dispatchEventImpl(Unknown Source)
        at java.awt.Component.dispatchEvent(Unknown Source)
        at java.awt.EventQueue.dispatchEvent(Unknown Source)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
        at java.awt.EventDispatchThread.run(Unknown Source)

[harri]

Duplicate of #171