Add Java AssertJ emit and lift kits

[TSavo]

Summary

• add provekit-emit-java-assertj and provekit-lift-java-assertj as separate Java artifacts
• register AssertJ emit and lift surfaces through project config and manifests
• emit native AssertJ fluent assertions from normalized predicates
• lift ordinary AssertJ fluent assertions from JUnit tests without ProveKit markers
• keep unsupported predicates/forms honest instead of minting fake contracts

Verification

• mvn -B -ntp -pl provekit-emit-java-assertj,provekit-lift-java-assertj -am -Dtest=AssertJEmitterTest,RpcServerDescribeTest,AssertJExtractorTest package
• TOML parse check for Java project config and AssertJ emit/lift manifests
• git diff --check

Notes:

• No Rust CLI code is changed in this PR.
• Maven prints existing shade warnings; the targeted reactor build passes.

[coderabbitai]

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 64fd86ed-b37a-4d53-a0dd-ec5d6e7b54ab

📥 Commits

Reviewing files that changed from the base of the PR and between 5e7427b and 46e93dd.

📒 Files selected for processing (17)

• implementations/java/.provekit/config.toml
• implementations/java/.provekit/emit/java-assertj/manifest.toml
• implementations/java/.provekit/lift/java-assertj/manifest.toml
• implementations/java/pom.xml
• implementations/java/provekit-emit-java-assertj/pom.xml
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/AssertJEmitter.java
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/EmitPlan.java
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/Main.java
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/PredicateAssertionTable.java
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/RpcServer.java
• implementations/java/provekit-emit-java-assertj/src/main/java/com/provekit/emit/assertj/TermRenderer.java
• implementations/java/provekit-emit-java-assertj/src/test/java/com/provekit/emit/assertj/AssertJEmitterTest.java
• implementations/java/provekit-emit-java-assertj/src/test/java/com/provekit/emit/assertj/RpcServerDescribeTest.java
• implementations/java/provekit-lift-java-assertj/pom.xml
• implementations/java/provekit-lift-java-assertj/src/main/java/com/provekit/lift/assertj/AssertJExtractor.java
• implementations/java/provekit-lift-java-assertj/src/main/resources/META-INF/services/com.provekit.lift.Extractor
• implementations/java/provekit-lift-java-assertj/src/test/java/com/provekit/lift/assertj/AssertJExtractorTest.java

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codex/java-assertj-artifact-20260529

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 87a0d52b52

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[chatgpt-codex-connector]

Choose placeholders that satisfy emitted assertions

For emitted predicates that rely on generated placeholders, every numeric variable is initialized to 0 and every reference to null, so supported contracts such as ne(a,b), lt(a,b), or option-is-some(o) produce tests like assertThat(a).isNotEqualTo(b) with a == b == 0 or assertThat(o).isNotNull() with o == null. Those sources compile, but provekit.plugin.check runs mvn -q test, so common emitted AssertJ contracts fail immediately instead of validating the emission artifact.

Useful? React with 👍 / 👎.