Should I model Choice labels as enums or plain strings?

Use enums with @Describe and optional @Label for fixed label sets, or strings and label-to-description maps with null for undescribed labels. Enum answers come back as constants, string answers come back as strings.

How do I send structured ticket objects instead of raw text?

Pass records, POJOs, maps, or lists and Jackson serializes them; strings go as-is. Instructions and criteria can also be objects, and backtick references can point at sibling fields.

Does it play well with virtual threads and async code?

Every call has an Async twin returning CompletableFuture, and sync methods block on the same futures so they suit virtual threads. Override model, timeout, retry, headers, and extra body per request with RequestOptions.

How do I debug latency without leaking user content?

Use the http logger at DEBUG for method, path, status, duration, and retries. Leave the wire logger off in production because it prints full bodies, and failures surface as typed exceptions rather than log lines.

How do I install the jev4j Java SDK?

Add com.galitianu:jev4j:0.1.0 from Maven Central in Gradle or Maven. It requires Java 17+ and its only dependency is Jackson databind, and every commit on main is also published as a snapshot of the next version from the Sonatype snapshot repository.

What is jev4j's default retry behavior?

Two retries with exponential backoff from 500 ms to 5 s and 25 percent jitter, retrying HTTP 408, 429 and 5xx responses plus connection errors and timeouts, and honoring Retry-After up to 60 s, matching the JS and Python SDKs. RetryPolicy.none() disables it, and each call can override it.

What configuration does the jev4j client read?

apiKey from TYPESAFE_API_KEY, baseUrl from TYPESAFE_BASE_URL defaulting to https://api.typesafe.ai, and defaultModel from TYPESAFE_DEFAULT_MODEL defaulting to jev-latest. Explicit builder values win over environment variables, which win over defaults, and the per-attempt timeout is 10 s.

CommunityJev Repos & SDKs

Jev4j

Java SDK for TypeSafe with typed noul, choice, and score handles: pass records, maps, or strings as state and read answers back by handle or explicit key.

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Stars: 1
Language: Java
License: MIT
Published by: Community
Author: galitianu
Last verified: Oct 2026

galitianu/jev4j

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Java SDK for the TypeSafe AI API. Typed questions, typed answers, Java 21.

Forks: 0
Last pushed: Updated Oct 2026

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About this project

Java SDK for the TypeSafe AI API. Java 17+. TypeSafe answers typed questions about a piece of text or JSON (the state) in one call: a yes/no probability (noul), a pick from a fixed set (choice), or a rating on an ordered rubric (score), each with probabilities and confidence. API reference: latest · all versions. Jackson (jackson-databind) is the only dependency.

Quoted from the project's README. Read the full README.

Tagscommunity github

Works forJev for Classification

Used inJev for Software & DevTools

Languages: Java

Highlights

Install from Maven Central for Java 17+; Jackson databind is the only dependency.
Score takes 2-10 levels with score, confidence, legend, probabilities, and level helpers.
Sync plus CompletableFuture async twins, explicit keys, model override, and extraBody fields.
Retry defaults match JS and Python SDKs with Retry-After support; errors are unchecked and typed.

Watch out

Java 17+ with Jackson databind as the only dependency; wire TRACE logging can carry user content, so keep it off. Copy reviewed against the repository README on 2026-10-04, not from running it.

Questions about this entry

Short answers drawn from the linked project or page.

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