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Moderne licensed

Replace unused variables with underscore

Recipe IDorg.openrewrite.java.migrate.lang.ReplaceUnusedVariablesWithUnderscore
Artifactorg.openrewrite.recipe:rewrite-migrate-java

Replace unused variable declarations with underscore (_) for Java 22+. This includes unused variables in enhanced for loops, catch blocks, and lambda parameters where the variable is never referenced.

Single 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.lang.ReplaceUnusedVariablesWithUnderscore

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

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

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