java.lang.NullPointerException

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    ,
    • java.lang.NullPointerException at javax.swing.text.DefaultStyledDocument.getParagraphElement(Unknown Source) at javax.swing.text.StyledEditorKit$AttributeTracker.updateInputAttributes(Unknown Source) at javax.swing.text.StyledEditorKit$AttributeTracker.caretUpdate(Unknown Source) at javax.swing.text.JTextComponent.fireCaretUpdate(Unknown Source) at javax.swing.text.JTextComponent$MutableCaretEvent.fire(Unknown Source) at javax.swing.text.JTextComponent$MutableCaretEvent.stateChanged(Unknown Source) at javax.swing.text.DefaultCaret.fireStateChanged(Unknown Source) at javax.swing.text.DefaultCaret.changeCaretPosition(Unknown Source) at javax.swing.text.DefaultCaret.handleSetDot(Unknown Source) at javax.swing.text.DefaultCaret.setDot(Unknown Source) at javax.swing.text.DefaultCaret.setDot(Unknown Source) at javax.swing.text.JTextComponent.setCaretPosition(Unknown Source) at navea.system.Display.scrollToBottom(Display.java:116) at navea.system.Display.actionPerformed(Display.java:150)
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