RFR 8144931: Assert class signatures are correct and refer to valid classes

[Paul Sandoz]

> On 18 Feb 2016, at 15:55, Vladimir Ivanov <vladimir.x.ivanov at oracle.com> wrote:
> 
>> P.S.: You could improve the assertion with the Type class, so it would also fail on otherwise broken descriptor strings (missing "L" or missing ";"):
> I like how it shapes out with Type. Thanks, Uwe!
> 

Me too!

Paul.

> Best regards,
> Vladimir Ivanov
> 
>> 
>>     static boolean checkClassName(String cn) {
>>        Type tp = Type.getType(cn);
>>        // additional sanity so only valid "L;" descriptors work
>>        if (tp.getSort() != Type.OBJECT) {
>>          return false;
>>        }
>>        try {
>>            Class<?> c = Class.forName(tp.getClassName(), false, null);
>>            return true;
>>        } catch (ClassNotFoundException e) {
>>            return false;
>>        }
>>    }
>> 
>> -----
>> Uwe Schindler
>> uschindler at apache.org
>> ASF Member, Apache Lucene PMC / Committer
>> Bremen, Germany
>> http://lucene.apache.org/