Program: 79104
Project: 79104
Buggy source:
/** 
 * @param composite
 * @param dataSource
 * @param image
 * @return
 */
public static TreeItem[] createTreeItems(TreeItem parentItem,ArrayList dataSource,int style,Image image){
  if (dataSource == null) {
    return null;
  }
  TreeItem item[]=new TreeItem[dataSource.size()];
  boolean addDummyNode=false;
  for (int i=0; i < dataSource.size(); i++) {
    item[i]=new TreeItem(parentItem,style);
    Object source=dataSource.get(i);
    String displayName="String_Node_Str";
    String name="String_Node_Str";
    if (source instanceof String) {
      displayName=(String)source;
      name=displayName;
      item[i].setData(name);
    }
 else     if (source instanceof TableImpl) {
      TableImpl table=(TableImpl)source;
      displayName=table.getTableAlias();
      name=table.getFullyQualifiedName();
      item[i].setData(name);
    }
 else     if (source instanceof TableItem) {
      displayName=((TableItem)source).getText();
      name=(String)((TableItem)source).getData();
      item[i].setData(name);
    }
 else     if (source instanceof DbObject) {
      DbObject dbObject=(DbObject)source;
      name=dbObject.getName();
      displayName=dbObject.getDisplayName();
      image=dbObject.getImage();
      addDummyNode=true;
      item[i].setData(dbObject);
    }
 else     if (source instanceof Column) {
      Column column=(Column)source;
      displayName=column.getName();
      name=column.getTableName() + "String_Node_Str" + displayName;
      String type=column.getDbType();
      displayName=displayName + "String_Node_Str" + type+ "String_Node_Str";
      if (column.getSchemaName() != null) {
        name=column.getSchemaName() + "String_Node_Str" + name;
      }
      item[i].setData(name);
    }
 else     if (source instanceof ProcedureParameter) {
      ProcedureParameter column=(ProcedureParameter)source;
      displayName=column.getName();
      name=displayName;
      int type=column.getModeType();
      String mode=toModeType(type);
      String dataType=column.getDataTypeName();
      displayName=displayName + "String_Node_Str" + dataType+ "String_Node_Str"+ mode+ "String_Node_Str";
      item[i].setData(column);
    }
    item[i].setText(displayName);
    item[i].setImage(image);
    item[i].setExpanded(false);
    if (addDummyNode) {
      new TreeItem(item[i],style);
    }
  }
  return item;
}

Fixed version (ground truth):
/** 
 * @param composite
 * @param dataSource
 * @param image
 * @return
 */
public static TreeItem[] createTreeItems(TreeItem parentItem,ArrayList dataSource,int style,Image image){
  if (dataSource == null) {
    return null;
  }
  TreeItem item[]=new TreeItem[dataSource.size()];
  boolean addDummyNode=false;
  for (int i=0; i < dataSource.size(); i++) {
    item[i]=new TreeItem(parentItem,style);
    Object source=dataSource.get(i);
    String displayName="String_Node_Str";
    String name="String_Node_Str";
    if (source instanceof String) {
      displayName=(String)source;
      name=displayName;
      item[i].setData(name);
    }
 else     if (source instanceof TableImpl) {
      TableImpl table=(TableImpl)source;
      displayName=table.getTableAlias();
      name=table.getFullyQualifiedName();
      item[i].setData(name);
    }
 else     if (source instanceof TableItem) {
      displayName=((TableItem)source).getText();
      name=(String)((TableItem)source).getData();
      item[i].setData(name);
    }
 else     if (source instanceof DbObject) {
      DbObject dbObject=(DbObject)source;
      name=dbObject.getName();
      displayName=dbObject.getDisplayName();
      image=dbObject.getImage();
      addDummyNode=true;
      item[i].setData(dbObject);
    }
 else     if (source instanceof Column) {
      Column column=(Column)source;
      displayName=column.getName();
      name=column.getTableName() + "String_Node_Str" + displayName;
      String type=column.getDbType();
      displayName=displayName + "String_Node_Str" + type+ "String_Node_Str";
      if (column.getSchemaName() != null) {
        name=column.getSchemaName() + "String_Node_Str" + name;
      }
      item[i].setData(name);
    }
 else     if (source instanceof Procedure) {
      Procedure column=(Procedure)source;
      name=column.getProcedureName();
      displayName=name;
      addDummyNode=true;
      if (column.getSchema() != null)       name=column.getSchema() + "String_Node_Str" + displayName;
      item[i].setData(column);
    }
 else     if (source instanceof ProcedureParameter) {
      ProcedureParameter column=(ProcedureParameter)source;
      name=column.getName();
      displayName=name;
      if (column.getSchema() != null)       name=column.getSchema() + "String_Node_Str" + displayName;
      int type=column.getModeType();
      String mode=toModeType(type);
      String dataType=column.getDataTypeName();
      displayName=displayName + "String_Node_Str" + dataType+ "String_Node_Str"+ mode+ "String_Node_Str";
      item[i].setData(column);
    }
    item[i].setText(displayName);
    item[i].setImage(image);
    item[i].setExpanded(false);
    if (addDummyNode) {
      new TreeItem(item[i],style);
    }
  }
  return item;
}