Let TestKit fixtures resolve io.moderne from the Code Genome Project

[kmccarp]

Background / problem

The scheduled ci run #33002073829 failed 39 of 58 TestKit tests, all with Could not find io.moderne:jsonrpc:1.0.13, required by org.openrewrite:rewrite-core:8.92.0-SNAPSHOT:20260826.175419-1. Gradle only searched ~/.m2 and Maven Central for it.

This plugin declares no io.moderne dependency of its own. jsonrpc is the only io.moderne artifact in the run and it arrives transitively: rewrite-core declares implementation("io.moderne:jsonrpc:latest.release") and ships it as a runtime dependency in its POM, because the org.openrewrite.rpc package (RewriteRpc, RewriteRpcProcess and the Parse, Print, Visit, Generate request types) uses it as the JSON-RPC transport to out-of-process language servers. Every consumer of rewrite-core pulls it in whether or not it uses RPC, and the TestKit builds resolve rewrite-core when rewriteDryRun, rewriteRun and rewriteDiscover build their recipe classpath.

Two things then lined up. moderneinc/jsonrpc cut 1.0.13 earlier today, its first release since it stopped publishing to Maven Central, so the artifact exists only on the Code Genome Project while Central stops at 1.0.12. Today's rewrite-core snapshot therefore pins 1.0.13. Meanwhile #472 pointed the TestKit fixtures at CGP but scoped that repository with includeGroupByRegex("org[.]openrewrite.*"). io.moderne falls outside the filter, so the fixture builds never ask CGP for jsonrpc. The push run on the same commit was green only because the snapshot at that time still pinned 1.0.12.

Solution

Widen the CGP content filter in TestKitRepositories to (org[.]openrewrite|io[.]moderne).*, which is the same pair of groups plugin/build.gradle.kts already routes to CGP for the main build. The fallback declarations for builds without credentials are unchanged.

Test plan

• :plugin:compileKotlin locally
• ci on this branch, which has CGP credentials, resolves jsonrpc:1.0.13 in the TestKit builds