Change to 4.39

Co-authored-by: Copilot <copilot@github.com>

Author: jhthompson

lib-extra/src/main/java/com/diffplug/spotless/extra/java/EclipseJdtFormatterStep.java

@@ -35,7 +35,7 @@ public final class EclipseJdtFormatterStep {
 	private EclipseJdtFormatterStep() {}
 
 	private static final String NAME = "eclipse jdt formatter";
-	private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(17, "4.40");
+	private static final Jvm.Support<String> JVM_SUPPORT = Jvm.<String> support(NAME).add(17, "4.39");
 
 	public static String defaultVersion() {
 		return JVM_SUPPORT.getRecommendedFormatterVersion();

plugin-gradle/CHANGES.md

@@ -10,8 +10,7 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 - Fix `tableTestFormatter` editorconfig cache not honoring `.editorconfig` changes across Gradle daemon runs due to a shared static `EditorConfigProvider`. ([#2893](https://github.com/diffplug/spotless/pull/2893))
 ### Changes
 - Bump default `cleanthat` version `2.24` -> `2.25`. ([#2903](https://github.com/diffplug/spotless/pull/2903))
-- Bump `eclipse-jdt` default version from `4.35` to `4.40`. ([#2902](https://github.com/diffplug/spotless/pull/2902))
-
+- Bump `eclipse-jdt` default version from `4.35` to `4.39`. ([#2902](https://github.com/diffplug/spotless/pull/2902))
 
 ## [8.4.0] - 2026-03-18
 ### Added

plugin-maven/CHANGES.md

@@ -7,7 +7,7 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
 - Add `<javaparserVersion>` option to `<cleanthat>`, allowing users to override the JavaParser version pulled in transitively by Cleanthat. ([#2903](https://github.com/diffplug/spotless/pull/2903))
 ### Changes
 - Bump default `cleanthat` version `2.24` -> `2.25`. ([#2903](https://github.com/diffplug/spotless/pull/2903))
-- Bump `eclipse-jdt` default version from `4.35` to `4.40`. ([#2902](https://github.com/diffplug/spotless/pull/2902))
+- Bump `eclipse-jdt` default version from `4.35` to `4.39`. ([#2902](https://github.com/diffplug/spotless/pull/2902))
 
 ## [3.4.0] - 2026-03-18
 ### Added