i checked binaries as well as the source code to org.apache.poi.hssf.record.DrawingRecord and it contains no clone-method (check out yourself if you don't trust me). java.lang.RuntimeException: The class org.apache.poi.hssf.record.DrawingRecord needs to define a clone method at org.apache.poi.hssf.record.Record.clone(Record.java:153) at org.apache.poi.hssf.model.Sheet.cloneSheet(Sheet.java:329) at org.apache.poi.hssf.usermodel.HSSFSheet.cloneSheet(HSSFSheet.java:124) at org.apache.poi.hssf.usermodel.HSSFWorkbook.cloneSheet(HSSFWorkbook.java:498)
You'll need to be using a svn checkout from trunk. The patch went in after 3.0.2 beta 2 was built