viewxls: com.benryan.conversion.ConvertsionException: error converting spreadsheet

UIDefaults.getUI() failed: no ComponentUI class for: com.jxcell.HB[,0,0,0x0,invalid,alignmentX=0.0,alignmentY=0.0,border=,flags=4194304,maximumSize=,minimumSiz
=,preferredSize=,blockIncrement=10,orientation=HORIZONTAL,unitIncrement=1]
java.lang.Error
        at javax.swing.UIDefaults.getUIError(UIDefaults.java:711)
        at javax.swing.MultiUIDefaults.getUIError(MultiUIDefaults.java:133)
        at javax.swing.UIDefaults.getUI(UIDefaults.java:741)
        at javax.swing.UIManager.getUI(UIManager.java:1017)
        at javax.swing.JScrollBar.updateUI(JScrollBar.java:210)
        at javax.swing.JScrollBar.<init>(JScrollBar.java:144)
        at javax.swing.JScrollBar.<init>(JScrollBar.java:159)
        at com.jxcell.HB.<init>(EYFN)
        at com.jxcell.Adapter_2_0.createScrollbar(EYFN)
        at com.jxcell.mvc.Viewview.<init>(EYFN)
        at com.jxcell.ssView.<init>(EYFN)
        at com.jxcell.View.append(EYFN)
        at com.jxcell.View.<init>(EYFN)
        at com.jxcell.View.<init>(EYFN)
        at com.benryan.conversion.SpreadsheetConverter.convert(SpreadsheetConverter.java:336)
        at com.benryan.conversion.XlsConverter$1.doConversion(XlsConverter.java:42)
        at com.benryan.conversion.DocConverter.execute(DocConverter.java:59)
        at com.benryan.conversion.macro.ConverterMacro.execute(ConverterMacro.java:276)
...

2010-08-19 21:51:34,776 ERROR [http-8331-3] [com.benryan.conversion.SpreadsheetConverter] convert error converting spreadsheet
 -- url: /display/TEST/Home | page: 262146 | userName: admin | referer: http://localhost:8331/pages/editpage.action?pageId=262146 | action: viewpage
java.lang.ArrayIndexOutOfBoundsException: 8364
	at com.jxcell.util.KC.format(EYFN)
	at com.jxcell.util.ValueFormat.format(EYFN)
	at com.jxcell.util.WC.I(EYFN)
	at com.jxcell.Sheet.getValue(EYFN)
	at com.jxcell.Sheet.getFormattedText(EYFN)
	at com.jxcell.View.charWidthToTwips(EYFN)
	at com.jxcell.View.getFormattedText(EYFN)
	at com.benryan.conversion.SpreadsheetConverter.writeHeaderStyles(SpreadsheetConverter.java:249)
	at com.benryan.conversion.SpreadsheetConverter.write(SpreadsheetConverter.java:65)
	at com.benryan.conversion.SpreadsheetConverter.convert(SpreadsheetConverter.java:395)
	at com.benryan.conversion.XlsConverter$1.doConversion(XlsConverter.java:42)
	at com.benryan.conversion.DocConverter.execute(DocConverter.java:59)
	at com.benryan.conversion.macro.ConverterMacro.execute(ConverterMacro.java:276)
...