[GitHub] [helix] pkuwm opened a new issue #1337: PreFetch annotation parsing may be wrong with getMethods()[0]

[GitBox <gi...@apache.org>]

pkuwm opened a new issue #1337:
URL: https://github.com/apache/helix/issues/1337


   There are two methods in IZkDataListener. It seems this getMethods()[0] is to get `handleDataChange()`. But actually getMethods() is not guaranteed to be ordered. If an annotation(enabled = false) is applied to `handleDataChange()` in users code, but the result is enabled because JVM `getMethods()[0]` returns `handleDataDeleted()`
   
   ```
   Method callbackMethod = IZkDataListener.class.getMethods()[0];
   ```


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