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serialization: Java serialization companion code (UID drift, JEP 290/415 filters, records, JSON/Protobuf comparison)

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Co-Authored-By: Claude Sonnet 5.5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01KqJyCidz3ZgRyHABv2GVJh
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Claude
2026-09-30 19:03:40 +00:00
parent b31c6716a3
commit 97e7352f45
31 changed files with 867 additions and 0 deletions
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serialization/output/05-resource-limits.txt
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max heap = 256 MiB
forged stream is 37 bytes long but claims a byte[1000000000]
no filter -> OutOfMemoryError: Java heap space
maxarray=100000 -> InvalidClassException: filter status: REJECTED
filter saw: class=class [B arrayLength=-1 depth=1 streamBytes=21 -> UNDECIDED
filter saw: class=class [B arrayLength=1000000000 depth=1 streamBytes=27 -> REJECTED
maxarray, logged -> InvalidClassException: filter status: REJECTED
a legitimate-looking chain of 200 nodes is 1324 bytes
no filter -> accepted: Node
maxdepth=50 -> InvalidClassException: filter status: REJECTED
maxbytes=10000, one 50 KB array -> accepted: byte[]
an ArrayList of 5000 integers is 50125 bytes
maxbytes=10000, 5000 integers -> InvalidClassException: filter status: REJECTED
maxbytes=1000000, 5000 integers -> accepted: ArrayList