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Graph/so-79642579

Question

so-79642579

so-79642579

so-79642579

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DESCRIBESProblem

java.io.InvalidClassException: tls.other.app.package.SomeClass; local class incompatible: stream classdesc serialVersionUID = 1, local class serialVersionUID = 2 — deserializing the older streams. Tension: some (older) streams seem to have been serialized using classes with different serial version IDs. Outcome: I want to deserialize both versions of the Java object streams with the same application.

DESCRIBESProblem

java.lang.IllegalStateException: Duplicate key a (attempted merging values 1 and 1) — I'm trying to convert a list of objects to a `Map` using Java Streams. Tension: I expected it to just create a map with unique keys, but I forgot that my list has duplicates.

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