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Moderne licensed

Upgrade build to Java 24 for Kotlin 1.x

Recipe IDorg.openrewrite.java.migrate.UpgradeBuildToJava24ForKotlin1x
Artifactorg.openrewrite.recipe:rewrite-migrate-java

Kotlin versions before 2.3 only support up to Java 24, and Kotlin 1.x cannot be safely upgraded automatically because crossing the K2 compiler default introduced in Kotlin 2.0 is a source-breaking change. Such modules are therefore capped at Java 24 and annotated with an explanation. Modules already on Kotlin 2.0-2.2 are instead bumped to Kotlin 2.3 by UpgradeKotlinForJava25 so they can reach Java 25. Applies only to modules that actually compile Kotlin (i.e. contain .kt source files), so transitive kotlin-stdlib dependencies do not trigger the cap.

Composite recipeMSAL

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.java.migrate.UpgradeBuildToJava24ForKotlin1x

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite.recipe:rewrite-migrate-java:3.41.0

Definition

This recipe runs the following recipes in order.

Data tables

Structured output this recipe can produce.

  • Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
  • Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
  • Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
  • Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats