Salve,
sto lavorando con i componenti di javax.swing e sono "inciampato" in questa eccezione che non riesco a capire.

codice:
Exception occurred during event dispatching:
java.lang.ArrayIndexOutOfBoundsException: 512
	at java.awt.GridBagLayout.GetLayoutInfo(GridBagLayout.java:906)
	at java.awt.GridBagLayout.getLayoutInfo(GridBagLayout.java:816)
	at java.awt.GridBagLayout.preferredLayoutSize(GridBagLayout.java:636)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at javax.swing.ViewportLayout.preferredLayoutSize(ViewportLayout.java:78)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at javax.swing.ScrollPaneLayout.preferredLayoutSize(ScrollPaneLayout.java:475)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at java.awt.GridLayout.preferredLayoutSize(GridLayout.java:319)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at java.awt.GridBagLayout.GetLayoutInfo(GridBagLayout.java:911)
	at java.awt.GridBagLayout.getLayoutInfo(GridBagLayout.java:816)
	at java.awt.GridBagLayout.preferredLayoutSize(GridBagLayout.java:636)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:690)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at javax.swing.JRootPane$RootLayout.preferredLayoutSize(JRootPane.java:824)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at javax.swing.JComponent.getPreferredSize(JComponent.java:1617)
	at java.awt.BorderLayout.preferredLayoutSize(BorderLayout.java:690)
	at java.awt.Container.preferredSize(Container.java:1558)
	at java.awt.Container.getPreferredSize(Container.java:1543)
	at java.awt.Window.pack(Window.java:486)
Qualcuno sa aiutarmi?