Certificate alternate subject names truncated at 255 characters

I need to be able to verify whether a certificate covers a specific subject. But I run into scenarios where the alternate subjects are long and the iControl API truncates them at 255 characters. The BIGIP UI does the same thing but I assumed it was just being truncated for display purposes but it seems it is the actual underlying functionallity. Is this a known limitation of the iControl java API?

I've seen some other references to 255 characters but not specific to the String value results of iControl 'get' routines. Maybe I missed this limitation. If the API can't handle the actual result of a 'get' routine it seems like it should return an error of some kind not truncated results.