Imagine you are working on a system that heavily utilizes serialization. How would you manage a scenario where sensitive data, such as passwords, should not be serialized?

  • Encrypt the sensitive data before serialization and decrypt it after deserialization
  • Implement a custom writeObject method to exclude the sensitive data during serialization
  • Use a separate, non-serializable class to store sensitive data
  • Use the transient keyword to mark the sensitive data
The transient keyword is used to indicate that a field should not be serialized. In this scenario, marking sensitive data fields as transient ensures that they are excluded from serialization. Implementing a custom writeObject method allows fine-grained control over the serialization process. Encrypting the data is a valid approach but doesn't directly address the issue of excluding it from serialization. Using a separate class for sensitive data avoids serialization issues but is not directly related to the question.
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