Program: 167092
Project: 167092
Buggy source:
@Before public void before() throws IOException {
  SqlDialect sqlDialect;
  try {
    Class<?> sqlDialectClass=findSqlGDialect();
    Constructor<?> constructor=sqlDialectClass.getConstructor(Configuration.class);
    sqlDialect=(SqlDialect)constructor.newInstance(configuration);
  }
 catch (  Exception e) {
    throw new RuntimeException(e);
  }
  try {
    SqlgDataSource.INSTANCE.setupDataSource(sqlDialect.getJdbcDriver(),configuration);
  }
 catch (  PropertyVetoException e) {
    throw new RuntimeException(e);
  }
  Connection conn;
  try {
    conn=SqlgDataSource.INSTANCE.get(configuration.getString("String_Node_Str")).getConnection();
    DatabaseMetaData metadata=conn.getMetaData();
    if (sqlDialect.supportsCascade()) {
      String catalog=null;
      String schemaPattern=null;
      String tableNamePattern="String_Node_Str";
      String[] types={"String_Node_Str"};
      ResultSet result=metadata.getTables(catalog,schemaPattern,tableNamePattern,types);
      while (result.next()) {
        StringBuilder sql=new StringBuilder("String_Node_Str");
        sql.append(sqlDialect.maybeWrapInQoutes(result.getString(2)));
        sql.append("String_Node_Str");
        sql.append(sqlDialect.maybeWrapInQoutes(result.getString(3)));
        sql.append("String_Node_Str");
        if (sqlDialect.needsSemicolon()) {
          sql.append("String_Node_Str");
        }
        try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
          preparedStatement.executeUpdate();
        }
       }
      catalog=null;
      schemaPattern=null;
      result=metadata.getSchemas(catalog,schemaPattern);
      while (result.next()) {
        String schema=result.getString(1);
        if (!sqlDialect.getDefaultSchemas().contains(schema)) {
          StringBuilder sql=new StringBuilder("String_Node_Str");
          sql.append(sqlDialect.maybeWrapInQoutes(schema));
          sql.append("String_Node_Str");
          if (sqlDialect.needsSemicolon()) {
            sql.append("String_Node_Str");
          }
          try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
            preparedStatement.executeUpdate();
          }
         }
      }
    }
 else     if (!sqlDialect.supportSchemas()) {
      ResultSet result=metadata.getCatalogs();
      while (result.next()) {
        StringBuilder sql=new StringBuilder("String_Node_Str");
        String database=result.getString(1);
        if (!sqlDialect.getDefaultSchemas().contains(database)) {
          sql.append(sqlDialect.maybeWrapInQoutes(database));
          if (sqlDialect.needsSemicolon()) {
            sql.append("String_Node_Str");
          }
          try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
            preparedStatement.executeUpdate();
          }
         }
      }
    }
 else {
      conn.setAutoCommit(false);
      JDBC.dropSchema(metadata,"String_Node_Str");
      conn.commit();
    }
  }
 catch (  SQLException e) {
    throw new RuntimeException(e);
  }
  this.sqlgGraph=SqlgGraph.open(configuration);
  this.gt=this.sqlgGraph.traversal();
}

Fixed version (ground truth):
@Before public void before() throws IOException {
  SqlDialect sqlDialect;
  try {
    Class<?> sqlDialectClass=findSqlGDialect();
    Constructor<?> constructor=sqlDialectClass.getConstructor(Configuration.class);
    sqlDialect=(SqlDialect)constructor.newInstance(configuration);
  }
 catch (  Exception e) {
    throw new RuntimeException(e);
  }
  try {
    SqlgDataSource.INSTANCE.setupDataSource(sqlDialect.getJdbcDriver(),configuration);
  }
 catch (  PropertyVetoException e) {
    throw new RuntimeException(e);
  }
  Connection conn;
  try {
    conn=SqlgDataSource.INSTANCE.get(configuration.getString("String_Node_Str")).getConnection();
    DatabaseMetaData metadata=conn.getMetaData();
    if (sqlDialect.supportsCascade()) {
      String catalog=null;
      String schemaPattern=null;
      String tableNamePattern="String_Node_Str";
      String[] types={"String_Node_Str"};
      ResultSet result=metadata.getTables(catalog,schemaPattern,tableNamePattern,types);
      while (result.next()) {
        String schema=result.getString(2);
        String table=result.getString(3);
        if (sqlDialect.getGisSchemas().contains(schema) || sqlDialect.getSpacialRefTable().contains(table)) {
          continue;
        }
        StringBuilder sql=new StringBuilder("String_Node_Str");
        sql.append(sqlDialect.maybeWrapInQoutes(schema));
        sql.append("String_Node_Str");
        sql.append(sqlDialect.maybeWrapInQoutes(table));
        sql.append("String_Node_Str");
        if (sqlDialect.needsSemicolon()) {
          sql.append("String_Node_Str");
        }
        try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
          preparedStatement.executeUpdate();
        }
       }
      catalog=null;
      schemaPattern=null;
      result=metadata.getSchemas(catalog,schemaPattern);
      while (result.next()) {
        String schema=result.getString(1);
        if (!sqlDialect.getDefaultSchemas().contains(schema)) {
          StringBuilder sql=new StringBuilder("String_Node_Str");
          sql.append(sqlDialect.maybeWrapInQoutes(schema));
          sql.append("String_Node_Str");
          if (sqlDialect.needsSemicolon()) {
            sql.append("String_Node_Str");
          }
          try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
            preparedStatement.executeUpdate();
          }
         }
      }
    }
 else     if (!sqlDialect.supportSchemas()) {
      ResultSet result=metadata.getCatalogs();
      while (result.next()) {
        StringBuilder sql=new StringBuilder("String_Node_Str");
        String database=result.getString(1);
        if (!sqlDialect.getDefaultSchemas().contains(database)) {
          sql.append(sqlDialect.maybeWrapInQoutes(database));
          if (sqlDialect.needsSemicolon()) {
            sql.append("String_Node_Str");
          }
          try (PreparedStatement preparedStatement=conn.prepareStatement(sql.toString())){
            preparedStatement.executeUpdate();
          }
         }
      }
    }
 else {
      conn.setAutoCommit(false);
      JDBC.dropSchema(metadata,"String_Node_Str");
      conn.commit();
    }
  }
 catch (  SQLException e) {
    throw new RuntimeException(e);
  }
  this.sqlgGraph=SqlgGraph.open(configuration);
  this.gt=this.sqlgGraph.traversal();
}