Method cleanup

subprojects/groovy-sql/src/main/java/groovy/sql/Sql.java:4964–4970

Provides a hook for derived classes to be able to examine JDBC statements before cleanup/closing. Default behavior is to call a previously saved closure, if any, using the statement as a parameter. @param statement the statement to clean up @since 4.0.1

(Statement statement)

     * @since 4.0.1
     */
    protected void cleanup(Statement statement) {
        // for thread safety, grab local copy
        Closure cleanupStatement = this.cleanupStatement;
        if (cleanupStatement != null) {
            cleanupStatement.call(statement);
        }
    }

    // private implementation methods
    //-------------------------------------------------------------------------