Program: 129068
Project: 129068
Buggy source:
public static List<String> getTableCatalogAndSchema(DatabaseConnection dbConnection,String tableName){
  String catalogName=null;
  String schemaName=null;
  List<String> catalogAndSchema=new ArrayList<String>();
  List<Catalog> catalogs=ConnectionHelper.getCatalogs(dbConnection);
  if (catalogs.isEmpty()) {
    List<Schema> schemas=ConnectionHelper.getSchema(dbConnection);
    if (schemas.isEmpty()) {
    }
 else {
      for (      Schema s : schemas) {
        EList<ModelElement> ownedElement=null;
        if (s != null) {
          ownedElement=s.getOwnedElement();
          if (ownedElement != null) {
            for (            ModelElement m : ownedElement) {
              if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                if (label.equals(tableName)) {
                  schemaName=s.getName();
                  break;
                }
              }
            }
          }
        }
      }
    }
  }
 else {
    for (    Catalog c : catalogs) {
      EList<ModelElement> ownedElement=null;
      List<Schema> schemas=CatalogHelper.getSchemas(c);
      if (schemas.isEmpty()) {
        if (c != null) {
          ownedElement=c.getOwnedElement();
          if (ownedElement != null) {
            for (            ModelElement m : ownedElement) {
              if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                if (label.equals(tableName)) {
                  catalogName=c.getName();
                  break;
                }
              }
            }
          }
        }
      }
 else {
        for (        Schema s : schemas) {
          if (s != null) {
            ownedElement=s.getOwnedElement();
            if (ownedElement != null) {
              for (              ModelElement m : ownedElement) {
                if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                  String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                  if (label.equals(tableName)) {
                    catalogName=c.getName();
                    schemaName=s.getName();
                    break;
                  }
                }
              }
            }
          }
        }
      }
    }
  }
  catalogAndSchema.add(catalogName);
  catalogAndSchema.add("String_Node_Str".equals(schemaName) ? null : schemaName);
  return catalogAndSchema;
}

Fixed version (ground truth):
public static List<String> getTableCatalogAndSchema(DatabaseConnection dbConnection,String tableName){
  String catalogName=null;
  String schemaName=null;
  List<String> catalogAndSchema=new ArrayList<String>();
  List<Catalog> catalogs=ConnectionHelper.getCatalogs(dbConnection);
  if (catalogs.isEmpty()) {
    List<Schema> schemas=ConnectionHelper.getSchema(dbConnection);
    if (schemas.isEmpty()) {
    }
 else {
      for (      Schema s : schemas) {
        EList<ModelElement> ownedElement=null;
        if (s != null) {
          ownedElement=s.getOwnedElement();
          if (ownedElement != null) {
            for (            ModelElement m : ownedElement) {
              if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                if (label.equals(tableName)) {
                  schemaName=s.getName();
                  break;
                }
              }
            }
          }
        }
      }
    }
  }
 else {
    for (    Catalog c : catalogs) {
      EList<ModelElement> ownedElement=null;
      List<Schema> schemas=CatalogHelper.getSchemas(c);
      if (schemas.isEmpty()) {
        if (c != null) {
          ownedElement=c.getOwnedElement();
          if (ownedElement != null) {
            for (            ModelElement m : ownedElement) {
              if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                if (label.equals(tableName)) {
                  catalogName=c.getName();
                  break;
                }
              }
            }
          }
        }
      }
 else {
        for (        Schema s : schemas) {
          if (s != null) {
            ownedElement=s.getOwnedElement();
            if (ownedElement != null) {
              for (              ModelElement m : ownedElement) {
                if (m instanceof org.talend.core.model.metadata.builder.connection.MetadataTable) {
                  String label=((org.talend.core.model.metadata.builder.connection.MetadataTable)m).getLabel();
                  if (label.equals(tableName)) {
                    catalogName=c.getName();
                    schemaName=s.getName();
                    break;
                  }
                }
              }
            }
          }
        }
      }
    }
  }
  catalogAndSchema.add("String_Node_Str".equals(catalogName) ? null : catalogName);
  catalogAndSchema.add(("String_Node_Str".equals(schemaName) || "String_Node_Str".equals(schemaName)) ? null : schemaName);
  return catalogAndSchema;
}