Plan a Java version migration

org.openrewrite.java.migrate.search.PlanJavaMigration

Study the set of Java versions and associated tools in use across many repositories.

Recipe source

GitHub: PlanJavaMigration.java, Issue Tracker, Maven Central

This recipe is available under the Moderne Source Available License.

Usage

This recipe has no required configuration options. Users of Moderne can run it via the Moderne CLI.

Moderne CLI

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell

mod run . --recipe PlanJavaMigration

If the recipe is not available locally, then you can install it using:

mod config recipes jar install org.openrewrite.recipe:rewrite-migrate-java:3.28.0

See how this recipe works across multiple open-source repositories

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Data Tables

JavaVersionMigrationPlan

Java version migration plan

org.openrewrite.java.migrate.table.JavaVersionMigrationPlan

A per-repository view of the current state of Java versions and associated build tools

Column Name	Description
Has Java	Whether this is a Java repository at all.
Source compatibility	The source compatibility of the source file.
Major version source compatibility	The major version.
Target compatibility	The target compatibility or --release version of the source file.
Gradle version	The version of Gradle in use, if any.
Has Gradle build	Whether a build.gradle file exists in the repository.
Maven version	The version of Maven in use, if any.
Has Maven pom	Whether a pom.xml file exists in the repository.

SourcesFileResults

Source files that had results

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Column Name	Description
Source path before the run	The source path of the file before the run. null when a source file was created during the run.
Source path after the run	A recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Parent of the recipe that made changes	In a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all.
Recipe that made changes	The specific recipe that made a change.
Estimated time saving	An estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
Cycle	The recipe cycle in which the change was made.

SearchResults

Source files that had search results

org.openrewrite.table.SearchResults

Search results that were found during the recipe run.

Column Name	Description
Source path of search result before the run	The source path of the file with the search result markers present.
Source path of search result after run the run	A recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Result	The trimmed printed tree of the LST element that the marker is attached to.
Description	The content of the description of the marker.
Recipe that added the search marker	The specific recipe that added the Search marker.

SourcesFileErrors

Source files that errored on a recipe

org.openrewrite.table.SourcesFileErrors

The details of all errors produced by a recipe run.

Column Name	Description
Source path	The file that failed to parse.
Recipe that made changes	The specific recipe that made a change.
Stack trace	The stack trace of the failure.

RecipeRunStats

Recipe performance

org.openrewrite.table.RecipeRunStats

Statistics used in analyzing the performance of recipes.

Column Name	Description
The recipe	The recipe whose stats are being measured both individually and cumulatively.
Source file count	The number of source files the recipe ran over.
Source file changed count	The number of source files which were changed in the recipe run. Includes files created, deleted, and edited.
Cumulative scanning time (ns)	The total time spent across the scanning phase of this recipe.
Max scanning time (ns)	The max time scanning any one source file.
Cumulative edit time (ns)	The total time spent across the editing phase of this recipe.
Max edit time (ns)	The max time editing any one source file.