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Moderne licensed

Find Calendar.getInstance() calls inside loops

Recipe IDorg.openrewrite.kotlin.performance.FindCalendarGetInstanceInLoops$KtRecipe
Artifactio.moderne.recipe:recipes-kotlin

Calendar.getInstance() resolves the default TimeZone and Locale and allocates a fresh GregorianCalendar on every call. Inside a loop the timezone lookup dominates — hoist the calendar or migrate to java.time types.

Single recipeProprietary

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.kotlin.performance.FindCalendarGetInstanceInLoops$KtRecipe

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

mod config recipes jar install io.moderne.recipe:recipes-kotlin:0.2.0

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