Do both javassist and javaAssist exist?

problem description

recently, demo, which is doing java bytecode modification, often sees two kinds of javassist and javaAssist found on the Internet. Javassist has official website , and javaAssist"s main Aliyun has appeared ( link ). Are they both or are javaAssist miswritten? The relevant documents say that these two are to modify the bytecode, is there a great god to understand the relevant, hope to answer my doubts, thank you very much!

Mar.25,2021

there is only one misspelled article in javassist > Aliyun community .
was founded by Japanese Shigeru Chiba and then joined JBoss

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bee92c-31c1a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bee92c-31c1a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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