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Q&A Proguard induced : No enum constants for class while deserializing using jackson

If you have enum classes in the code that is being obfuscated, you need to tell proguard to skip obfuscating the values and valueOf method in your enum class, since it uses reflection internally to...

posted 1d ago by Abbas Gadhia‭

Answer
#1: Initial revision by user avatar Abbas Gadhia‭ · 2025-02-21T10:28:42Z (1 day ago)
If you have enum classes in the code that is being obfuscated, you need to tell proguard to skip obfuscating the `values` and `valueOf` method in your enum class, since it uses reflection internally to fetch the enum constants of an enum.

This is how the rule would look if you are using the gradle proguard plugin

```gradle.kts
keepclassmembers(
    """
      enum * {
        public static **[] values();
        public static ** valueOf(java.lang.String);
      }"""
  )
```