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java.lang.NullPointerException: This BranchElement has no children. at javax.swing.text.AbstractDocument$BranchElement.getStartOffset( at javax.swing.text.AbstractDocument$BranchElement.getElementIndex( at javax.swing.text.DefaultStyledDocument$ElementBuffer.insertParagraph( at javax.swing.text.DefaultStyledDocument$ElementBuffer.insertUpdate( at javax.swing.text.DefaultStyledDocument$ElementBuffer.insert( at javax.swing.text.DefaultStyledDocument.insert( at javax.swing.text.html.HTMLDocument.insert( at javax.swing.text.html.HTMLDocument$HTMLReader.flush( at javax.swing.text.html.parser.ParserDelegator.parse( at at javax.swing.JEditorPane.setText( at robocode.AutoExtract.acceptReject(Unknown Source) at robocode.AutoExtract.acceptLicense(Unknown Source) at robocode.AutoExtract.main(Unknown Source)