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Find try { … } catch (e: Exception) { null } patterns

Recipe IDorg.openrewrite.kotlin.bestpractices.FindCatchReturningNull$KtRecipe
Artifactio.moderne.recipe:recipes-kotlin

Swallowing every exception into null discards diagnostic information and conflates 'no value' with 'I lost the cause'. runCatching { } returns a Result<T> whose getOrNull() matches this shape, and onFailure { } keeps a hook for diagnostics.

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.bestpractices.FindCatchReturningNull$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