Hi... I always got "Invalid class file format:" error during compilation I didn't get any error message when "jakarta-poi-1.5.1-final-bin.tar.gz" downloaded from its site. has no problem with unzipped (#gzip -d filename). To open the archive I used #tar xvfi jakarta-poi-1.5.1-final-bin.tar.gz since always encounter checksum error I use "xvfi". Therefore I rename the file to make my CLASSPATH simpler... then I compile... and got the error... as shown below... I tried to build my own poi*.jar, but seemed too complicated to me as I know it needs another product "ant" ??? hope it clear enough... Thanks in advance... Detail as follow: ------------------------------------------------------ # CLASSPATH=/usr/imron/wjava:/usr/imron/wjava/poi.jar:. # export CLASSPATH # javac HSSFTest1.java error: Invalid class file format: /usr/imron/wjava/poi.jar(org/apache/poi/hssf/u sermodel/HSSFWorkbook.class), wrong version: 46, expected 45 HSSFTest1.java:47: Class org.apache.poi.hssf.usermodel.HSSFWorkbook not found in type declaration. HSSFWorkbook wb = new HSSFWorkbook(); ^ HSSFTest1.java:47: Class org.apache.poi.hssf.usermodel.HSSFWorkbook not found in type declaration. HSSFWorkbook wb = new HSSFWorkbook(); ^ 3 errors # more HSSFTest1.java //package wroxbeans; import java.io.*; import java.util.Date; import org.apache.poi.hssf.usermodel.*; import java.lang.*; public class HSSFTest1 { private String dirName; private String fileName; private String mailAddress; private String dummyData; private String defDummyData; private String slash; public HSSFTest1() { dirName = "d:"; fileName = "HSSFTest1.xls"; slash = "\\"; mailAddress = "sdc-tmsd2@fujitsu.co.id"; dummyData = "Dummy created on " + new Date(); defDummyData = "default Dummy created on " + new Date(); } public void setDirName(String dName) { dirName = dName; } public void setFileName(String fName) { fileName = fName; } public void setMailAddress(String mAddr) { mailAddress = mAddr; } public void setDummyData(String dData) { dummyData = dData; if (dData == null || dData.equals("")) dummyData = defDummyData; } public void setSlash(String sl) { slash = sl; } public synchronized void generateExcel() { // create work book HSSFWorkbook wb = new HSSFWorkbook(); // create sheets HSSFSheet sheet1 = wb.createSheet("New Sheet!!!"); HSSFSheet sheet2 = wb.createSheet("Second Sheet!!!"); // get row HSSFRow row = sheet1.createRow((short)0); // get cell and put value in it HSSFCell cell = row.createCell((short)0); cell.setCellValue(dummyData); // writing to file try { FileOutputStream fileOut = new FileOutputStream(dirName + slash + fi leName); wb.write(fileOut); fileOut.close(); }catch(IOException e) { e.printStackTrace(); } } } # ------------------------------------------------------
Check your compiler! Symantec 3 can cause this problem. http://groups.google.com/groups? q=error+binclass+java++group:comp.lang.java.programmer&hl=en&lr=&ie=UTF- 8&oe=UTF-8&selm=7t2ct3%24tbj%241%40nnrp1.deja.com&rnum=1
did you try ./build.sh compile ?
No response. Closing.