Claude
ff6130bede
Payment model, permits and the three modifiers, default-branch trap, generic and recursive hierarchies, visitor comparison, run-time enforcement, modules. Transcripts from JDK 21, 25 and 27. Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_01TF9JWFvJSNm6HVzswzZU5a
15 lines
877 B
Plaintext
15 lines
877 B
Plaintext
$ java -cp v1+Hack.class Main (Hack was compiled against a Payment that permitted it) (21.0.10+7-Ubuntu-124.04)
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loading Card: Card
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loading Hack...
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Exception in thread "main" java.lang.IncompatibleClassChangeError: class Hack cannot implement sealed interface Payment
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$ java -cp v1+Hack.class Main (Hack was compiled against a Payment that permitted it) (25.0.4.1+1-LTS)
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loading Card: Card
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loading Hack...
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Exception in thread "main" java.lang.IncompatibleClassChangeError: Failed listed permitted subclass check: class Hack is not a permitted subclass of Payment
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$ java -cp v1+Hack.class Main (Hack was compiled against a Payment that permitted it) (27+35)
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loading Card: Card
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loading Hack...
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Exception in thread "main" java.lang.IncompatibleClassChangeError: Failed listed permitted subclass check: class Hack is not a permitted subclass of Payment
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