presto-main/src/main/java/io/prestosql/operator/aggregation/AccumulatorCompiler.java/AccumulatorCompiler/generateRequireNotNull
class AccumulatorCompiler:    private static BytecodeExpression generateRequireNotNull(Variable variable)
    {
        return invokeStatic(Objects.class, "requireNonNull", Object.class, variable.cast(Object.class), constantString(variable.getName() + " is null"))
                .cast(variable.getType());
    }