Fix style issue and eclipse annoyance of JUnit 5/6 selection

Author: akarnokd

build.gradle

@@ -47,10 +47,13 @@ dependencies {
     testImplementation "org.reactivestreams:reactive-streams-tck-flow:$reactiveStreamsVersion"
 
     testImplementation "org.junit.jupiter:junit-jupiter:$jupiterVersion"
-    testRuntimeOnly "org.junit.vintage:junit-vintage-engine:$jupiterVersion"
 
-    // The missing piece – required by Gradle 9+
-    testRuntimeOnly "org.junit.platform:junit-platform-launcher:$jupiterLauncherVersion"  // match your JUnit version family
+    // Explicitly add these for IDE compatibility (especially Eclipse)
+    testImplementation "org.junit.platform:junit-platform-commons:$jupiterLauncherVersion"
+    testImplementation "org.junit.platform:junit-platform-launcher:$jupiterLauncherVersion"
+
+    testRuntimeOnly "org.junit.vintage:junit-vintage-engine:$jupiterVersion"
+    testRuntimeOnly "org.junit.platform:junit-platform-launcher:$jupiterLauncherVersion"  // already have this
 }
 
 // === Experimental JDK handling for Outreach Program ===

src/main/java/io/reactivex/rxjava4/internal/disposables/ListCompositeDisposable.java

@@ -198,7 +198,6 @@ public void reset() {
         }
     }
 
-
     @Override
     public DisposableContainer derive() {
         var result = new ListCompositeDisposable();