Re: RFR: JDK-8032012, , String.toLowerCase/toUpperCase performance improvement

[Ulf Zibis]

Me again ;-)

On 02/06/2014 10:30 AM, Ulf Zibis wrote:

But why not just coding:
2558             char ch = value[first];
2559             if (Character.isSurrogate(ch) {
2560                 hasSurr = true;
2561                 break;
2562             }
2563             if (ch != Character.toLowerCase((int)ch)) {  // no need to 
check Character.ERROR
2564                 break;
2565             }

There already is Character.isUpperCase().
I don't see, why (ch != Character.toLowerCase((int)ch) should perform better.

But there is a bug in javadoc ;-)
Your Report (Review ID: JI-9010267) - Error in doc of 
Character.isLowerCase/UpperCase(char)

-Ulf