Program: 71531
Project: 71531
Buggy source:
public TableContentLayout(ITableContent tableContent,String format,HTMLLayoutContext context,String keyString){
  this.format=format;
  this.context=context;
  this.tableContent=tableContent;
  this.keyString=keyString;
  this.colCount=tableContent.getColumnCount();
  int start=0;
  int end=this.colCount;
  String tableId=tableContent.getInstanceID().toUniqueString();
  List hints=context.getTableColumnHint(tableId);
  this.adjustedColumnIds=new int[colCount];
  if (hints.size() > 0) {
    int current=0;
    Iterator iter=hints.iterator();
    int total=0;
    while (iter.hasNext()) {
      int[] hint=(int[])iter.next();
      for (int i=hint[0]; i < hint[1]; i++) {
        IColumn column=tableContent.getColumn(i);
        adjustedColumnIds[i]=current;
        if (!isColumnHidden(column)) {
          visibleColumns.add(column);
          current++;
        }
      }
      total=total + hint[1] - hint[0];
    }
    current=adjustedColumnIds[0];
    for (int i=1; i < colCount; i++) {
      if (adjustedColumnIds[i] < current) {
        adjustedColumnIds[i]=current;
      }
 else {
        current=adjustedColumnIds[i];
      }
      if (!hasHiddenColumns) {
        if (i != adjustedColumnIds[i]) {
          hasHiddenColumns=true;
          leastColumnIdToBeAjusted=i;
        }
      }
    }
  }
 else {
    int current=0;
    for (int i=0; i < colCount; i++) {
      IColumn column=tableContent.getColumn(i);
      adjustedColumnIds[i]=current;
      if (!isColumnHidden(column)) {
        visibleColumns.add(column);
        current++;
      }
 else {
        if (!hasHiddenColumns) {
          hasHiddenColumns=true;
          leastColumnIdToBeAjusted=i;
        }
      }
    }
  }
  if (hasHiddenColumns) {
    this.wrappedTable=new TableContentWrapper(tableContent,visibleColumns);
  }
  this.realColCount=visibleColumns.size();
}

Fixed version (ground truth):
public TableContentLayout(ITableContent tableContent,String format,HTMLLayoutContext context,String keyString){
  this.format=format;
  this.context=context;
  this.tableContent=tableContent;
  this.keyString=keyString;
  this.colCount=tableContent.getColumnCount();
  int start=0;
  int end=this.colCount;
  String tableId=tableContent.getInstanceID().toUniqueString();
  List hints=context.getTableColumnHint(tableId);
  this.adjustedColumnIds=new int[colCount];
  if (hints.size() > 0) {
    int current=-1;
    Iterator iter=hints.iterator();
    while (iter.hasNext()) {
      int[] hint=(int[])iter.next();
      for (int i=hint[0]; i < hint[1]; i++) {
        IColumn column=tableContent.getColumn(i);
        if (!isColumnHidden(column)) {
          visibleColumns.add(column);
          current++;
        }
        adjustedColumnIds[i]=(current >= 0 ? current : 0);
      }
    }
    current=adjustedColumnIds[0];
    for (int i=1; i < colCount; i++) {
      if (adjustedColumnIds[i] < current) {
        adjustedColumnIds[i]=current;
      }
 else {
        current=adjustedColumnIds[i];
      }
      if (!hasHiddenColumns) {
        if (i != adjustedColumnIds[i]) {
          hasHiddenColumns=true;
          leastColumnIdToBeAjusted=i;
        }
      }
    }
  }
 else {
    int current=-1;
    for (int i=0; i < colCount; i++) {
      IColumn column=tableContent.getColumn(i);
      if (!isColumnHidden(column)) {
        visibleColumns.add(column);
        current++;
      }
 else {
        if (!hasHiddenColumns) {
          hasHiddenColumns=true;
          leastColumnIdToBeAjusted=i;
        }
      }
      adjustedColumnIds[i]=(current >= 0 ? current : 0);
    }
  }
  if (hasHiddenColumns) {
    this.wrappedTable=new TableContentWrapper(tableContent,visibleColumns);
  }
  this.realColCount=visibleColumns.size();
}