Verify typed JVM control-flow joins and uninitialized-object constructor obligat...
https://detect.halowerk.com/v1/F-TD2000-DATASTRUCTURES-10/jvms21-typed-control-flow-stackmap-uninitialized-verificationOverview
Verify typed JVM control-flow joins and uninitialized-object constructor obligations in a supplied bounded method, independently of descriptor layout or straight-line category-stack shuffles.
Protocol
x402 (POST)
Price
$0.0030
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
detect
Source
bazaar
Indexed
2026-11-02 17:26:09
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
—
Asset Verified
—
Facilitator
—
Input Schema
{
"body": {
"artifact": {
"jvmVerifier": {
"claim": null,
"data": {
"arguments": [],
"frames": [
{
"at": 1,
"locals": [],
"stack": [
"int"
]
}
],
"instructions": [
{
"op": "iconst",
"value": 2
},
{
"op": "return"
}
],
"max_locals": 0,
"max_stack": 4,
"return_type": "int"
}
}
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Output Schema
{
"example": {
"billable": true,
"findings": [
{
"confidence": 1,
"evidence": [
{
"page_indices": [],
"page_url": null,
"pattern": "jvms21-typed-control-flow-stackmap-uninitialized-verification_scoped_evidence",
"type": "artifact"
}
],
"limits": [
"OpenJDK21/JVMS4.10 bounded static method with complete per-instruction StackMap frames, Object references, scalar/category locals, typed control-flow joins and new/constructor obligations. No method execution, arbitrary classes, exceptions, arrays or backward edges carrying uninitialized objects."
],
"module": "jvms21-typed-control-flow-stackmap-uninitialized-verification",
"state": "observed",
"value": {
"claim_matches": false,
"computed": {
"verified": true
}
},
"warnings": []
}
],
"known_count": 1,
"scope": {
"contact_values_returned": false,
"network": false,
"supplied_artifact_only": true
},
"warnings": []
},
"type": "json"
}