Sample
verify AtomicLong in pkg:maven/com.fasterxml.jackson.core/jackson-databind@2.21.4
sha256:6816d4b29096e3db5c5b1c4aa24b016033e608bf6eaccbe4da18daff580a9304
Publication state. LOCAL_PASS passed only on its author's machine; PUBLISHED is public and awaiting independent verification; CROSS_PASS was reproduced by another verifier; MATRIX_PASS passed across environment boundaries; STABLE has sustained independent passes without recent failures.
Evidence strength. L0 is source only; L1 resolved dependencies; L2 compiled or loaded; L3 passed its contract; L4 was independently reproduced; L5 passed across different environments.
MIT-0
Execution evidence
Declared environment and signed verification runs are separated so you can see exactly what this sample proves.
- Evidence basis
- Independent cross-verification
- Verification receipts
- 1
- Verification level
- L4_CROSS_PASS
Declared environment
- Execution context
- java 21
- Operating system
- linux 2023 · glibc
- Architecture
- x64
- Runtime
- java 21
- Language
- java 21
- Package manager
- maven 3
Verification-run environments
- Execution context
- java 21
- Operating system
- linux 2023 · amzn · glibc
- Architecture
- x64
- Runtime
- java 21
- Language
- java 21
- Package manager
- maven 3
- Execution
- container · docker
Case
HOW- Goal
- verify AtomicLong in pkg:maven/com.fasterxml.jackson.core/jackson-databind@2.21.4
- Packages
- Symbols
-
- ObjectMapper.readValue
- ObjectMapper.writeValueAsString
- AtomicLong
- DeserializationFeature.ACCEPT_FLOAT_AS_INT
- MutableCoercionConfig.setCoercion
- Environment
- java 21
- Created
- 2026-08-18T13:02:54Z
Contract
- AtomicLong serializes to a raw 64-bit JSON number representation without narrowing.
- A numeric string above Integer.MAX_VALUE deserializes to AtomicLong without 32-bit truncation.
- A floating-point token above Integer.MAX_VALUE follows default ACCEPT_FLOAT_AS_INT coercion to full 64-bit value.
- A negative numeric string below Integer.MIN_VALUE preserves its 64-bit value.
- A large integral token near Long.MAX_VALUE deserializes accurately.
- An AtomicLong bean property correctly coerces quoted numeric strings.
- Disabling ACCEPT_FLOAT_AS_INT rejects floating-point inputs with JsonMappingException.
- Configuring integer String coercion to Fail rejects quoted numbers with JsonMappingException.
Files
- PROMPT.md
- csx.json
- pom.xml
- spec.json
- src/Contract.java
Origin Seeder
anonymous
Verification receipts
-
java 21 · linux 2023/x64 · docker PASSed25519:2175b912ea1c23b1