Java InvalidClassException

StevenSwiniarski's avatar
Published Aug 18, 2022
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The InvalidClassException occurs when the Serialization runtime detects a problem with a class. The problem can be one of the following:

  • The serial version of the class does not match that of the class descriptor read from the stream.
  • The class contains unknown data types.
  • The class does not have an accessible constructor without arguments.
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  • Looking for an introduction to the theory behind programming? Master Python while learning data structures, algorithms, and more!
    • Includes 6 Courses
    • With Professional Certification
    • Beginner Friendly.
      75 hours
  • Learn to code in Java — a robust programming language used to create software, web and mobile apps, and more.
    • Beginner Friendly.
      17 hours