Program: 177090
Project: 177090
Buggy source:
@Override public void writeData(String tableName,EntityMetadata m,EnhancedEntity e) throws IOException {
  List<SuperColumn> columnFamilies=m.getSuperColumnsAsList();
  for (  SuperColumn columnFamily : columnFamilies) {
    String columnFamilyName=columnFamily.getName();
    Field columnFamilyField=columnFamily.getField();
    Object columnFamilyObject=null;
    try {
      columnFamilyObject=PropertyAccessorHelper.getObject(e.getEntity(),columnFamilyField);
    }
 catch (    PropertyAccessException e1) {
      log.error("String_Node_Str" + columnFamilyName + "String_Node_Str"+ e.getEntity());
      return;
    }
    List<Column> columns=columnFamily.getColumns();
    if (columnFamilyObject instanceof Collection) {
      String dynamicCFName=null;
      EmbeddedCollectionCacheHandler ecCacheHandler=m.getEcCacheHandler();
      if (ecCacheHandler.isCacheEmpty()) {
        int count=0;
        for (        Object obj : (Collection)columnFamilyObject) {
          dynamicCFName=columnFamilyName + Constants.SUPER_COLUMN_NAME_DELIMITER + count;
          addColumnFamilyToTable(tableName,dynamicCFName);
          hbaseWriter.writeColumns(gethTable(tableName),dynamicCFName,e.getId(),columns,obj);
          count++;
        }
      }
 else {
        int lastEmbeddedObjectCount=ecCacheHandler.getLastEmbeddedObjectCount(e.getId());
        for (        Object obj : (Collection)columnFamilyObject) {
          dynamicCFName=ecCacheHandler.getEmbeddedObjectName(e.getId(),obj);
          if (dynamicCFName == null) {
            dynamicCFName=columnFamilyName + Constants.SUPER_COLUMN_NAME_DELIMITER + (++lastEmbeddedObjectCount);
          }
        }
        ecCacheHandler.clearCache();
      }
    }
 else {
      Object columnFamilyObj=null;
      try {
        columnFamilyObj=PropertyAccessorHelper.getObject(e.getEntity(),columnFamilyName);
      }
 catch (      PropertyAccessException e2) {
        log.error("String_Node_Str" + columnFamily + "String_Node_Str");
        return;
      }
      hbaseWriter.writeColumns(gethTable(tableName),columnFamilyName,e.getId(),columns,columnFamilyObj);
    }
  }
}

Fixed version (ground truth):
@Override public void writeData(String tableName,EntityMetadata m,EnhancedEntity e) throws IOException {
  List<SuperColumn> columnFamilies=m.getSuperColumnsAsList();
  for (  SuperColumn columnFamily : columnFamilies) {
    String columnFamilyName=columnFamily.getName();
    Field columnFamilyField=columnFamily.getField();
    Object columnFamilyObject=null;
    try {
      columnFamilyObject=PropertyAccessorHelper.getObject(e.getEntity(),columnFamilyField);
    }
 catch (    PropertyAccessException e1) {
      log.error("String_Node_Str" + columnFamilyName + "String_Node_Str"+ e.getEntity());
      return;
    }
    if (columnFamilyObject == null) {
      return;
    }
    List<Column> columns=columnFamily.getColumns();
    if (columnFamilyObject instanceof Collection) {
      String dynamicCFName=null;
      EmbeddedCollectionCacheHandler ecCacheHandler=m.getEcCacheHandler();
      if (ecCacheHandler.isCacheEmpty()) {
        int count=0;
        for (        Object obj : (Collection)columnFamilyObject) {
          dynamicCFName=columnFamilyName + Constants.SUPER_COLUMN_NAME_DELIMITER + count;
          addColumnFamilyToTable(tableName,dynamicCFName);
          hbaseWriter.writeColumns(gethTable(tableName),dynamicCFName,e.getId(),columns,obj);
          count++;
        }
      }
 else {
        int lastEmbeddedObjectCount=ecCacheHandler.getLastEmbeddedObjectCount(e.getId());
        for (        Object obj : (Collection)columnFamilyObject) {
          dynamicCFName=ecCacheHandler.getEmbeddedObjectName(e.getId(),obj);
          if (dynamicCFName == null) {
            dynamicCFName=columnFamilyName + Constants.SUPER_COLUMN_NAME_DELIMITER + (++lastEmbeddedObjectCount);
          }
        }
        ecCacheHandler.clearCache();
      }
    }
 else {
      hbaseWriter.writeColumns(gethTable(tableName),columnFamilyName,e.getId(),columns,columnFamilyObject);
    }
  }
}