JAVA read excel file
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I have program (deployed to JBOSS 5) that reads parameters from excel file.
User may add remove parameters from the excel file. How ever he code does not recognize the modified excel file unil jboss restart? 
Should I make a conf. change or should I change something in the code?
    
        File file = new File(configurationFileName);
                Workbook workbook;
                try {
                      workbook = Workbook.getWorkbook(file);
    
                      Sheet sheet = workbook.getSheet(Constants.CONFIGURATION_SHEET_TAX_RATES);
                      if (sheet != null) {
    for (int columnIndex = 0; columnIndex < sheet.getColumns(); columnIndex++) {
                                  String headerValue = getCellContents(sheet, columnIndex, 0);