Program: 25332
Project: 25332
Buggy source:
protected void replaceWithUnderlyingStorage(ASTNode tree,CubeMetastoreClient metastoreClient) throws HiveException {
  if (tree == null) {
    return;
  }
  if (TOK_TABNAME == tree.getToken().getType()) {
    if (tree.getChildCount() == 2) {
      ASTNode dbIdentifier=(ASTNode)tree.getChild(0);
      ASTNode tableIdentifier=(ASTNode)tree.getChild(1);
      String grillTable=tableIdentifier.getText();
      String table=getUnderlyingTableName(metastoreClient,grillTable);
      String db=getUnderlyingDBName(metastoreClient,grillTable);
      if ("String_Node_Str".equalsIgnoreCase(db)) {
        tree.deleteChild(0);
      }
 else       if (StringUtils.isNotBlank(db)) {
        dbIdentifier.getToken().setText(db);
      }
      if (StringUtils.isNotBlank(table)) {
        tableIdentifier.getToken().setText(table);
      }
    }
 else {
      ASTNode tableIdentifier=(ASTNode)tree.getChild(0);
      String grillTable=tableIdentifier.getText();
      String table=getUnderlyingTableName(metastoreClient,grillTable);
      if (StringUtils.isNotBlank(table)) {
        tableIdentifier.getToken().setText(table);
      }
      String dbName=getUnderlyingDBName(metastoreClient,grillTable);
      if (StringUtils.isNotBlank(dbName) && !"String_Node_Str".equalsIgnoreCase(dbName)) {
        ASTNode dbIdentifier=new ASTNode(new CommonToken(HiveParser.Identifier,dbName));
        dbIdentifier.setParent(tree);
        tree.insertChild(0,dbIdentifier);
      }
    }
  }
 else {
    for (int i=0; i < tree.getChildCount(); i++) {
      replaceWithUnderlyingStorage((ASTNode)tree.getChild(i),metastoreClient);
    }
  }
}

Fixed version (ground truth):
protected void replaceWithUnderlyingStorage(ASTNode tree,CubeMetastoreClient metastoreClient){
  if (tree == null) {
    return;
  }
  if (TOK_TABNAME == tree.getToken().getType()) {
    try {
      if (tree.getChildCount() == 2) {
        ASTNode dbIdentifier=(ASTNode)tree.getChild(0);
        ASTNode tableIdentifier=(ASTNode)tree.getChild(1);
        String grillTable=tableIdentifier.getText();
        String table=getUnderlyingTableName(metastoreClient,grillTable);
        String db=getUnderlyingDBName(metastoreClient,grillTable);
        if ("String_Node_Str".equalsIgnoreCase(db)) {
          tree.deleteChild(0);
        }
 else         if (StringUtils.isNotBlank(db)) {
          dbIdentifier.getToken().setText(db);
        }
        if (StringUtils.isNotBlank(table)) {
          tableIdentifier.getToken().setText(table);
        }
      }
 else {
        ASTNode tableIdentifier=(ASTNode)tree.getChild(0);
        String grillTable=tableIdentifier.getText();
        String table=getUnderlyingTableName(metastoreClient,grillTable);
        if (StringUtils.isNotBlank(table)) {
          tableIdentifier.getToken().setText(table);
        }
        String dbName=getUnderlyingDBName(metastoreClient,grillTable);
        if (StringUtils.isNotBlank(dbName) && !"String_Node_Str".equalsIgnoreCase(dbName)) {
          ASTNode dbIdentifier=new ASTNode(new CommonToken(HiveParser.Identifier,dbName));
          dbIdentifier.setParent(tree);
          tree.insertChild(0,dbIdentifier);
        }
      }
    }
 catch (    HiveException e) {
      LOG.warn("String_Node_Str" + e.getMessage());
    }
  }
 else {
    for (int i=0; i < tree.getChildCount(); i++) {
      replaceWithUnderlyingStorage((ASTNode)tree.getChild(i),metastoreClient);
    }
  }
}