Do not add `java.io.IO` import in `ReplaceSystemOutWithIOPrint` - #1118

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tim/fix-issue-1115

May 28, 2026

timtebeek commented May 28, 2026 •

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Fixes ReplaceSystemOutWithIOPrint imports non-existing class java.io.IO #1115. JEP 512 finalized the new IO console class in java.lang.IO for the Java 25 release, where it is implicitly imported by every source file — the java.io.IO location only ever existed in the preview JEPs 477 and 495. This reverts the maybeAddImport("java.io.IO", false) added in Add java.io.IO import in ReplaceSystemOutWithIOPrint #1093, which produced an import of the non-existent java.io.IO class. Tests are updated to expect no import, and the former addsImportForRegularClassWithPackage test is renamed to doesNotAddImportForRegularClassWithPackage to lock in the regression.


          Do not add java.io.IO import in ReplaceSystemOutWithIOPrint

4cba112

Fixes #1115. JEP 512 moved the new `IO` class to `java.lang.IO` for the
final Java 25 release, so it is implicitly imported by every source file;
the `java.io.IO` location only existed in the preview JEPs 477 and 495.
Reverts the import added in #1093, which produced an import of the
non-existent `java.io.IO`.

moderne-meeseeks Bot added this to OpenRewrite

moderne-meeseeks Bot assigned timtebeek

github-project-automation Bot moved this to In Progress in OpenRewrite

timtebeek merged commit 61e7d90 into main

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timtebeek deleted the tim/fix-issue-1115 branch

May 28, 2026 18:42

github-project-automation Bot moved this from In Progress to Done in OpenRewrite

mergify Bot added a commit to robfrank/linklift that referenced this pull request


          chore(deps): bump org.openrewrite.recipe:rewrite-migrate-java from 3.…

b60e1b8

…34.0 to 3.36.0 [skip ci]

Bumps [org.openrewrite.recipe:rewrite-migrate-java](https://github.com/openrewrite/rewrite-migrate-java) from 3.34.0 to 3.36.0.
Release notes

*Sourced from [org.openrewrite.recipe:rewrite-migrate-java's releases](https://github.com/openrewrite/rewrite-migrate-java/releases).*

> 3.36.0
> ------
>
> What's Changed
> --------------
>
> * Move StringFormatted recipe from Java 17 upgrade to Java best practices by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1106](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1106)
> * Skip `IfElseIfConstructToSwitch` when a trailing non-`== null` binary check is present by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1109](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1109)
> * Skip `UseTextBlocks` when literal value matches its source by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1111](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1111)
> * Skip `UseMapOf` for `HashMap` subclasses like `LinkedHashMap` and `TreeMap` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1113](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1113)
> * Skip `RenameUnderscoreIdentifier` on Kotlin and Groovy sources by [`@MBoegers`](https://github.com/MBoegers) in [openrewrite/rewrite-migrate-java#1114](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1114)
> * Do not add `java.io.IO` import in `ReplaceSystemOutWithIOPrint` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1118](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1118)
> * fix: do not replace lambda params with underscore when used as assignment target by [`@darrencilia`](https://github.com/darrencilia) in [openrewrite/rewrite-migrate-java#1117](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1117)
> * Route WSS4J message.token classes to their real 2.x packages by [`@Jenson3210`](https://github.com/Jenson3210) in [openrewrite/rewrite-migrate-java#1122](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1122)
> * Migrate `com.sun.xml.bind.marshaller.NamespacePrefixMapper` to `org.glassfish.jaxb.runtime.marshaller.NamespacePrefixMapper` by [`@Jenson3210`](https://github.com/Jenson3210) in [openrewrite/rewrite-migrate-java#1121](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1121)
> * Fix `RefineSwitchCases` generating invalid guard on enum constant labels by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1124](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1124)
> * Skip unparseable Java versions in FindJavaVersion instead of reporting -1 by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1125](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1125)
>
> New Contributors
> ----------------
>
> * [`@darrencilia`](https://github.com/darrencilia) made their first contribution in [openrewrite/rewrite-migrate-java#1117](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1117)
>
> **Full Changelog**: <openrewrite/rewrite-migrate-java@v3.35.0...v3.36.0>
>
> 3.35.0
> ------
>
> What's Changed
> --------------
>
> * Add `java.io.IO` import in `ReplaceSystemOutWithIOPrint` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1093](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1093)
> * Skip `UseMapOf` when `put()` argument is a null literal by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1094](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1094)
> * Migrate JAXB XJC binding files declaring version 2.0/2.1/2.2 by [`@MBoegers`](https://github.com/MBoegers) in [openrewrite/rewrite-migrate-java#1098](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1098)
> * Preserve explicit type arguments in MigrateCollections\* recipes by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1099](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1099)
> * Route Maven through Moderne Artifactory cache to avoid HTTP 429 by [`@Jenson3210`](https://github.com/Jenson3210) in [openrewrite/rewrite-migrate-java#1096](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1096)
> * Load sun.internal.new[Class].jar directly to fix CI test failures by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1101](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1101)
> * Skip explicit type arguments containing wildcards in `UseVarForGenericMethodInvocations` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1102](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1102)
> * Skip `var` when target type inference widens a generic argument by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1103](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1103)
> * Skip `IfElseIfConstructToSwitch` when `instanceof` types are missing by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1095](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1095)
> * Revert inline Maven mirror (now in gh-automation#95) by [`@Jenson3210`](https://github.com/Jenson3210) in [openrewrite/rewrite-migrate-java#1104](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1104)
> * Aggregate FindJavaVersion to one row per repository by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1105](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1105)
>
> **Full Changelog**: <openrewrite/rewrite-migrate-java@v3.34.1...v3.35.0>
>
> v3.34.1
> -------
>
> What's Changed
> --------------
>
> * OpenRewrite [v8.81.6](https://github.com/openrewrite/rewrite/releases/tag/v8.81.6)
> * Refresh UpdateSdkManTest fixtures after SDKMAN CSV update by [`@steve-aom-elliott`](https://github.com/steve-aom-elliott) in [openrewrite/rewrite-migrate-java#1073](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1073)
> * Add more static analysis recipes to java-best-practices by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1075](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1075)
> * OpenRewrite recipe best practices by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1074](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1074)
> * Add jspecify hyperlink by [`@sullis`](https://github.com/sullis) in [openrewrite/rewrite-migrate-java#1076](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1076)
> * Skip `var` when reassignment relies on declared supertype by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1078](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1078)
> * Keep parentheses when renaming typed lambda parameter to underscore by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1082](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1082)
> * Document null-probing semantic differences in singleton migrations by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1081](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1081)
> * Skip main migration when referenced as static API by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1084](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1084)
> * Skip `Immutable*.copyOf` rewrite when argument is not a `Collection` by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1089](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1089)
> * Keep block body when refined switch arm contains an if statement by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1088](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1088)

... (truncated)


Commits

* [`d4df178`](openrewrite/rewrite-migrate-java@d4df178) Skip unparseable Java versions in FindJavaVersion instead of reporting -1 ([#1](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1)...
* [`b8a298e`](openrewrite/rewrite-migrate-java@b8a298e) Fix `RefineSwitchCases` generating invalid guard on enum constant labels ([#1124](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1124))
* [`c7f400b`](openrewrite/rewrite-migrate-java@c7f400b) [Auto] SDKMAN! Java candidates as of 2026-06-01T1550
* [`fca7c7c`](openrewrite/rewrite-migrate-java@fca7c7c) Migrate `com.sun.xml.bind.marshaller.NamespacePrefixMapper` to `org.glassfish...
* [`74017b2`](openrewrite/rewrite-migrate-java@74017b2) Route WSS4J message.token classes to their real 2.x packages ([#1122](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1122))
* [`52b0808`](openrewrite/rewrite-migrate-java@52b0808) OpenRewrite recipe best practices
* [`23e5804`](openrewrite/rewrite-migrate-java@23e5804) Update Gradle wrapper 9.5.1
* [`21548bd`](openrewrite/rewrite-migrate-java@21548bd) fix: do not replace lambda params with underscore when used as assignment tar...
* [`61e7d90`](openrewrite/rewrite-migrate-java@61e7d90) Do not add `java.io.IO` import in `ReplaceSystemOutWithIOPrint` ([#1118](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1118))
* [`dec86d0`](openrewrite/rewrite-migrate-java@dec86d0) Skip `RenameUnderscoreIdentifier` on Kotlin and Groovy sources ([#1114](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1114))
* Additional commits viewable in [compare view](openrewrite/rewrite-migrate-java@v3.34.0...v3.36.0)
  
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