diff --git a/libraries/swingx/module-content.yaml b/libraries/swingx/module-content.yaml
index d88895c1579d..d06a85b18ccd 100644
--- a/libraries/swingx/module-content.yaml
+++ b/libraries/swingx/module-content.yaml
@@ -1,6 +1,3 @@
 - name: dist.all/lib/intellij.libraries.swingx.jar
   modules:
-  - name: intellij.libraries.swingx
-    libraries:
-      swingx:
-      - name: $MAVEN_REPOSITORY$/org/swinglabs/swingx-core/1/swingx-core-1.jar
\ No newline at end of file
+  - name: intellij.libraries.swingx
\ No newline at end of file
diff --git a/platform/build-scripts/src/org/jetbrains/intellij/build/impl/PlatformModules.kt b/platform/build-scripts/src/org/jetbrains/intellij/build/impl/PlatformModules.kt
index cbdb5383e1fe..6d5e4e3f1fa2 100644
--- a/platform/build-scripts/src/org/jetbrains/intellij/build/impl/PlatformModules.kt
+++ b/platform/build-scripts/src/org/jetbrains/intellij/build/impl/PlatformModules.kt
@@ -119,6 +119,9 @@ internal suspend fun createPlatformLayout(projectLibrariesUsedByPlugins: SortedS
     )
   }
 
+  // the library is put to a separate JAR due to IJPL-248591; it would be better to get rid of it completely, see IJPL-749
+  layout.withModuleLibrary(libraryName = "swingx", moduleName = "intellij.libraries.swingx")
+
   // platform-loader.jar is loaded by JVM classloader as part of loading our custom PathClassLoader class - reduce file size
   addModule(PLATFORM_LOADER_JAR, sequenceOf(
     "intellij.platform.util.rt.java8",