Program: 95464
Project: 95464
Buggy source:
/** 
 * get column for the given path
 * @param colPath the path
 * @param op the operation
 * @param table the table
 * @param path the path as list
 * @return the column or null if no column was found
 */
private TableColumn<?,?> determineColumn(final String colPath,final String op,TableView table,List<String> path){
  ObservableList<TableColumn> columns;
  if (colPath.contains("String_Node_Str" + TestDataConstants.PATH_CHAR_DEFAULT)) {
    columns=table.getColumns();
  }
 else {
    columns=table.getVisibleLeafColumns();
  }
  Iterator<String> pathIterator=path.iterator();
  String currCol=null;
  TableColumn<?,?> column=null;
  while (pathIterator.hasNext()) {
    try {
      currCol=pathIterator.next();
      int usrIdxCol=Integer.parseInt(currCol);
      if (usrIdxCol == 0) {
        usrIdxCol=usrIdxCol + 1;
      }
      int i=IndexConverter.toImplementationIndex(usrIdxCol);
      if (MatchUtil.NOT_EQUALS == op) {
        for (int j=0; j < columns.size(); j++) {
          if (j != i) {
            if (pathIterator.hasNext()) {
              columns=columns.get(j).getColumns();
            }
 else {
              column=columns.get(j);
            }
          }
        }
      }
 else {
        try {
          if (pathIterator.hasNext()) {
            columns=columns.get(i).getColumns();
          }
 else {
            column=columns.get(i);
          }
        }
 catch (        IndexOutOfBoundsException e) {
          throw new StepExecutionException("String_Node_Str" + IndexConverter.toUserIndex(i),EventFactory.createActionError(TestErrorEvent.INVALID_INDEX));
        }
      }
    }
 catch (    NumberFormatException nfe) {
      try {
        if (path.size() <= 1) {
          columns=table.getColumns();
        }
        if (columns.size() <= 0) {
          throw new StepExecutionException("String_Node_Str",EventFactory.createActionError(TestErrorEvent.NO_HEADER));
        }
        for (        TableColumn c : columns) {
          String h=c.getText();
          if (MatchUtil.getInstance().match(h,currCol,op)) {
            column=c;
            if (pathIterator.hasNext()) {
              columns=c.getColumns();
            }
            break;
          }
        }
      }
 catch (      IllegalArgumentException iae) {
      }
    }
  }
  return column;
}

Fixed version (ground truth):
/** 
 * get column for the given path
 * @param colPath the path
 * @param op the operation
 * @param table the table
 * @param path the path as list
 * @return the column or null if no column was found
 */
private TableColumn<?,?> determineColumn(final String colPath,final String op,TableView table,List<String> path){
  ObservableList<TableColumn> columns;
  if (colPath.contains("String_Node_Str" + TestDataConstants.PATH_CHAR_DEFAULT)) {
    columns=table.getColumns();
  }
 else {
    columns=table.getVisibleLeafColumns();
  }
  Iterator<String> pathIterator=path.iterator();
  String currCol=null;
  TableColumn<?,?> column=null;
  pathIteration:   while (pathIterator.hasNext()) {
    try {
      currCol=pathIterator.next();
      int usrIdxCol=Integer.parseInt(currCol);
      if (usrIdxCol == 0) {
        usrIdxCol=usrIdxCol + 1;
      }
      int i=IndexConverter.toImplementationIndex(usrIdxCol);
      if (MatchUtil.NOT_EQUALS == op) {
        for (int j=0; j < columns.size(); j++) {
          if (j != i) {
            if (pathIterator.hasNext()) {
              columns=columns.get(j).getColumns();
            }
 else {
              column=columns.get(j);
            }
          }
        }
      }
 else {
        try {
          if (pathIterator.hasNext()) {
            columns=columns.get(i).getColumns();
          }
 else {
            column=columns.get(i);
          }
        }
 catch (        IndexOutOfBoundsException e) {
          return null;
        }
      }
    }
 catch (    NumberFormatException nfe) {
      try {
        if (path.size() <= 1) {
          columns=table.getColumns();
        }
        if (columns.size() <= 0) {
          throw new StepExecutionException("String_Node_Str",EventFactory.createActionError(TestErrorEvent.NO_HEADER));
        }
        for (        TableColumn c : columns) {
          String h=c.getText();
          if (MatchUtil.getInstance().match(h,currCol,op)) {
            column=c;
            if (pathIterator.hasNext()) {
              columns=c.getColumns();
            }
            continue pathIteration;
          }
        }
        return null;
      }
 catch (      IllegalArgumentException iae) {
      }
    }
  }
  return column;
}