How to solve Proguard NotSerializableException in Java Application?

ProGuard is a tool used in Java development to help optimize and obfuscate code. It can sometimes cause issues with serialization if it strips out classes or fields that are necessary for serialization.

A NotSerializableException is typically thrown when an object is not serializable. In other words, when an object cannot be written to a stream and then reconstructed from that stream later.

To resolve this issue with ProGuard, you can do the following:

  1. Add the "-keepclassmembers" option to your ProGuard configuration file to ensure that all necessary classes and fields are retained. For example:

    -keepclassmembers class com.example.MyClass implements { *; }

    This will ensure that all members of the MyClass class are retained during the obfuscation process.

  2. If you are using third-party libraries, make sure that they are also properly serialized. If a third-party library is not serializable, you may need to exclude it from the obfuscation process. You can do this by adding the "-keep" option to your ProGuard configuration file, followed by the package or class name you want to exclude.

  3. Check that all objects being serialized implement the Serializable interface. If they do not, you will need to modify your code to ensure that they do.

By following these steps, you should be able to resolve any NotSerializableException issues that may arise when using ProGuard in your Java application.

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