Tenho um JFrame com um JTable dentro, se eu executar o JFrame ele funciona normalmente, mas se eu instanciar em outra classe ele da um erro, parece que é na instanciação do JTable.
Estou usando o netBeans.
O que pode ser isso?
ps: eu instalei o netbeans 6.8 beta e dpois disso começou a dar erro, vo testa reinstalar o netbeans
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at javax.swing.JTable.setSelectionBackground(JTable.java:2468)
at javax.swing.plaf.synth.SynthTableUI.updateStyle(SynthTableUI.java:117)
at javax.swing.plaf.synth.SynthTableUI.installDefaults(SynthTableUI.java:95)
at javax.swing.plaf.basic.BasicTableUI.installUI(BasicTableUI.java:1354)
at javax.swing.JComponent.setUI(JComponent.java:668)
at javax.swing.JTable.setUI(JTable.java:3540)
at javax.swing.JTable.updateUI(JTable.java:3596)
at javax.swing.JTable.<init>(JTable.java:614)
at javax.swing.JTable.<init>(JTable.java:539)
at teste.NewJFrame.initComponents(NewJFrame.java:37)
at teste.NewJFrame.<init>(NewJFrame.java:13)
at teste.Logon.rotinaConectar(Logon.java:132)
at teste.Logon$1.keyPressed(Logon.java:59)
at java.awt.Component.processKeyEvent(Component.java:5996)
at javax.swing.JComponent.processKeyEvent(JComponent.java:2794)
at java.awt.Component.processEvent(Component.java:5815)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1848)
at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:693)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:958)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:830)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:657)
at java.awt.Component.dispatchEventImpl(Component.java:4282)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:121)
CONSTRUÍDO COM SUCESSO (tempo total: 12 segundos)