SimpleEvaluationContext是线程安全的吗？

Question

根据Spring docs，有可能在程序中需要时使用 SimpleEvaluationContext 。

class Simple {
    public List<Boolean> booleanList = new ArrayList<Boolean>();
}

Simple simple = new Simple();
simple.booleanList.add(true);

EvaluationContext context = SimpleEvaluationContext().forReadOnlyDataBinding().build();

// false is passed in here as a string. SpEL and the conversion service
// correctly recognize that it needs to be a Boolean and convert it
parser.parseExpression("booleanList[0]").setValue(context, simple, "false");

// b is false
Boolean b = simple.booleanList.get(0);

我的问题是：此类（ SimpleEvaluationContext ）是线程安全的吗？