SDK & code generation

x-java-type

`x-java-type` appears on schema objects and properties. Its value is a string. Used by 2 providers across 9 OpenAPI documents. Observed values include `java.math.BigDecimal`, `java.time.Instant`, `Http.MultipartFormData.FilePart`. Consistent with sdk & code generation — this is inferred from where the key appears and what it carries, not from any published definition.

SDK & code generation derived description
How this description was produced. It is assembled from what was measured in the corpus — where this key appears in a document, what shape its value takes, the values observed, and how many providers use it. It is not taken from a published definition, because for most extensions none exists. Read it as evidence, not as a specification. If you own this extension and want it described properly, tell us.
64 occurrences
9 documents
2 providers
purpose-named

Where it appears

Location in the documentOccurrences
schema 64

What its value looks like

Value shapeOccurrences
string64

Observed values

Sampled from the specifications, most frequent first.

java.math.BigDecimaljava.time.InstantHttp.MultipartFormData.FilePart

Providers publishing it

All 2.

lean-technologiesyugabytedb

Why this is not in OpenAPI

Extensions exist because a provider needed something the specification would not carry. Most of what they hold is not the API contract at all — it is operational metadata about the contract: documentation, lifecycle, policy, provenance, and now agents. That metadata is usually better placed alongside the contract, in an Overlay or an APIs.json index, than crammed inside it. See everything else doing the sdk & code generation job.