After protecting the workbook, I got the following error when I am reading that protected workbook. java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:494) at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:224) at org.apache.poi.hssf.record.RecordFactory.createRecords(RecordFactory.java:160) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:165) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:132) at test.CopyOfXLReader1.main(CopyOfXLReader1.java:49) Caused by: java.lang.IllegalArgumentException: Illegal length at org.apache.poi.util.StringUtil.getFromUnicodeHigh(StringUtil.java:76) at org.apache.poi.hssf.record.FontRecord.fillFields(FontRecord.java:135) at org.apache.poi.hssf.record.Record.fillFields(Record.java:90) at org.apache.poi.hssf.record.Record.<init>(Record.java:55) at org.apache.poi.hssf.record.FontRecord.<init>(FontRecord.java:88) ... 9 more Exception in thread "main" org.apache.poi.hssf.record.RecordFormatException: Unable to construct record instance, the following exception occured: null at org.apache.poi.hssf.record.RecordFactory.createRecord(RecordFactory.java:237) at org.apache.poi.hssf.record.RecordFactory.createRecords(RecordFactory.java:160) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:165) at org.apache.poi.hssf.usermodel.HSSFWorkbook.<init>(HSSFWorkbook.java:132) at test.CopyOfXLReader1.main(CopyOfXLReader1.java:49)
Gosh...this reminds me of something....oh yeah the FAQ.