Add RedundantUtf8Charset recipe to drop redundant UTF-8 from Files calls#1167
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…les calls The character-based java.nio.file.Files methods always default to UTF-8, so passing StandardCharsets.UTF_8 explicitly is redundant. Wire the recipe into java-version-11.yml, the lowest version where every targeted no-charset overload (readString/writeString are @SInCE 11) compiles.
…undant guard - Bump copyright headers to 2026 - End the display name with 'method calls' and regenerate recipes.csv - Remove the parameterNames size guard; it always matches parameterTypes length
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…37.0 to 3.40.0 [skip ci] Bumps [org.openrewrite.recipe:rewrite-migrate-java](https://github.com/openrewrite/rewrite-migrate-java) from 3.37.0 to 3.40.0. Release notes *Sourced from [org.openrewrite.recipe:rewrite-migrate-java's releases](https://github.com/openrewrite/rewrite-migrate-java/releases).* > 3.40.0 > ------ > > What's Changed > -------------- > > * Keep `\t` and `\f` escapes in UseTextBlocks to avoid incidental whitespace stripping by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1160](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1160) > * Skip UseEnumSetOf empty conversion for static fields to avoid circular class-init ([#1157](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1157)) by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1161](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1161) > * Skip `UseMapOf` for `LinkedHashMap`/`TreeMap` in the prose `put()` form ([#1163](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1163)) by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1165](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1165) > * Skip AddMockitoJavaAgentToMavenSurefirePlugin when agent already configured in build/plugins by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1166](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1166) > * Add RedundantUtf8Charset recipe to drop redundant UTF-8 from Files calls by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1167](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1167) > * Fix Jakarta EE 10 web.xml migration by [`@sakshichitnis27`](https://github.com/sakshichitnis27) in [openrewrite/rewrite-migrate-java#1159](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1159) > > New Contributors > ---------------- > > * [`@sakshichitnis27`](https://github.com/sakshichitnis27) made their first contribution in [openrewrite/rewrite-migrate-java#1159](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1159) > > **Full Changelog**: <openrewrite/rewrite-migrate-java@v3.39.0...v3.40.0> > > 3.39.0 > ------ > > What's Changed > -------------- > > * Make ExtractExplicitConstructorInvocationArguments templates context-free by [`@knutwannheden`](https://github.com/knutwannheden) in [openrewrite/rewrite-migrate-java#1140](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1140) > * Convert Javadoc `<br>` tags to Markdown line breaks by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1142](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1142) > * Preserve angle brackets when converting `@param <T>` to Markdown by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1141](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1141) > * Fix JavadocToMarkdown's handling of varargs and JDKs newer than the bytecode source/target compatibility by [`@sambsnyd`](https://github.com/sambsnyd) in [openrewrite/rewrite-migrate-java#1143](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1143) > * Move ReplaceUnusedVariablesWithUnderscore to Java best practices by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1144](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1144) > * Extend Use{List,Set,Map}Of to recognise prose-statement chains by [`@steve-aom-elliott`](https://github.com/steve-aom-elliott) in [openrewrite/rewrite-migrate-java#1145](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1145) > * Skip `UseMapOf` when the anonymous `HashMap` is assigned to a concrete `HashMap` variable by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1149](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1149) > * Fix jakarta.enterprise.concurrent-api version for EE9 and EE10 by [`@evie-lau`](https://github.com/evie-lau) in [openrewrite/rewrite-migrate-java#1152](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1152) > * Add recipe to replace jakarta jws-api with ws-api in EE10 by [`@evie-lau`](https://github.com/evie-lau) in [openrewrite/rewrite-migrate-java#1151](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1151) > * Upgrade maven-ejb-plugin alongside jakarta.ejb-api by [`@evie-lau`](https://github.com/evie-lau) in [openrewrite/rewrite-migrate-java#1155](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1155) > * Upgrade maven-ear-plugin for ee9 and ee11 by [`@evie-lau`](https://github.com/evie-lau) in [openrewrite/rewrite-migrate-java#1156](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1156) > > **Full Changelog**: <openrewrite/rewrite-migrate-java@v3.38.0...v3.39.0> > > v3.38.0 > ------- > > What's Changed > -------------- > > * use . instead # for FQN link in Markdown javadoc by [`@barbulescu`](https://github.com/barbulescu) in [openrewrite/rewrite-migrate-java#1134](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1134) > * Bump maven-pmd-plugin to 3.28.x for Java 25 support by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1136](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1136) > * Explain why Kotlin modules are capped at Java 24 during Java 25 migration by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1137](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1137) > * Preserve `@{argLine}` in AddSurefireFailsafeArgLine for JaCoCo coverage by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1138](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1138) > * Add recipe to extract complex explicit constructor invocation arguments (JEP 513) by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1135](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1135) > * Bump Kotlin 2.0-2.2 to 2.3 so Kotlin modules can reach Java 25 by [`@timtebeek`](https://github.com/timtebeek) in [openrewrite/rewrite-migrate-java#1139](https://redirect.github.com/openrewrite/rewrite-migrate-java/pull/1139) > > **Full Changelog**: <openrewrite/rewrite-migrate-java@v3.37.0...v3.38.0> Commits * [`6584812`](openrewrite/rewrite-migrate-java@6584812) Fix Jakarta EE 10 web.xml migration ([#1159](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1159)) * [`3d0ad8f`](openrewrite/rewrite-migrate-java@3d0ad8f) OpenRewrite recipe best practices * [`76925b9`](openrewrite/rewrite-migrate-java@76925b9) Add RedundantUtf8Charset recipe to drop redundant UTF-8 from Files calls ([#1167](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1167)) * [`c0d0f67`](openrewrite/rewrite-migrate-java@c0d0f67) Skip AddMockitoJavaAgentToMavenSurefirePlugin when agent already configured i... * [`12386c8`](openrewrite/rewrite-migrate-java@12386c8) Skip UseMapOf for LinkedHashMap/TreeMap in prose put-statement form ([#1163](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1163)) (... * [`ee2f4c4`](openrewrite/rewrite-migrate-java@ee2f4c4) OpenRewrite recipe best practices * [`5f18964`](openrewrite/rewrite-migrate-java@5f18964) Skip UseEnumSetOf empty conversion for static fields to avoid circular class-... * [`4cd2123`](openrewrite/rewrite-migrate-java@4cd2123) Keep \t and \f escapes in UseTextBlocks to avoid incidental whitespace stripp... * [`16e662d`](openrewrite/rewrite-migrate-java@16e662d) Upgrade maven-ear-plugin for ee9 and ee11 ([#1156](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1156)) * [`b9f0360`](openrewrite/rewrite-migrate-java@b9f0360) Upgrade maven-ejb-plugin alongside jakarta.ejb-api ([#1155](https://redirect.github.com/openrewrite/rewrite-migrate-java/issues/1155)) * Additional commits viewable in [compare view](openrewrite/rewrite-migrate-java@v3.37.0...v3.40.0)
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The character-based
java.nio.file.Filesmethods always default to UTF-8, so passingStandardCharsets.UTF_8explicitly is redundant; this recipe removes it and cleans up the now-unused import. TheMethodMatchers are scoped to the exactCharsetoverloads (e.g.readString(Path, Charset)) so non-charset overloads are never touched, andisUtf8still guards against non-UTF-8 charsets likeISO_8859_1. It is wired intojava-version-11.yml, the lowest version where every targeted no-charset overload compiles (readString/writeStringare@since 11; the other five are@since 8). Display name and description use the@Getter final Stringconvention, andrecipes.csvis regenerated accordingly.