diff --git a/java/java-frontback-psi-impl/resources/intellij.java.frontback.psi.impl.xml b/java/java-frontback-psi-impl/resources/intellij.java.frontback.psi.impl.xml
index efbfe54fe2bb..9df6fe890100 100644
--- a/java/java-frontback-psi-impl/resources/intellij.java.frontback.psi.impl.xml
+++ b/java/java-frontback-psi-impl/resources/intellij.java.frontback.psi.impl.xml
@@ -1,6 +1,6 @@
 <idea-plugin package="com.intellij">
   <module value="com.intellij.java.frontback.psi.impl" />
   <extensions defaultExtensionNs="com.intellij">
-    <projectCustomDataSynchronizer implementation="com.intellij.lang.java.JavaLangLevelProjectCustomDataSynchronizer"/>
+    <projectCustomDataSynchronizer implementation="com.intellij.java.frontback.psi.impl.JavaLangLevelProjectCustomDataSynchronizer"/>
   </extensions>
 </idea-plugin>
diff --git a/java/java-frontback-psi-impl/src/com/intellij/lang/java/JavaLangLevelProjectCustomDataSynchronizer.kt b/java/java-frontback-psi-impl/src/com/intellij/java/frontback/psi/impl/JavaLangLevelProjectCustomDataSynchronizer.kt
similarity index 97%
rename from java/java-frontback-psi-impl/src/com/intellij/lang/java/JavaLangLevelProjectCustomDataSynchronizer.kt
rename to java/java-frontback-psi-impl/src/com/intellij/java/frontback/psi/impl/JavaLangLevelProjectCustomDataSynchronizer.kt
index 86a7f80253a6..ca33e7c923b2 100644
--- a/java/java-frontback-psi-impl/src/com/intellij/lang/java/JavaLangLevelProjectCustomDataSynchronizer.kt
+++ b/java/java-frontback-psi-impl/src/com/intellij/java/frontback/psi/impl/JavaLangLevelProjectCustomDataSynchronizer.kt
@@ -1,5 +1,5 @@
 // Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
-package com.intellij.lang.java
+package com.intellij.java.frontback.psi.impl
 
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.project.ProjectCustomDataSynchronizer
diff --git a/java/java-impl/src/com/intellij/openapi/roots/impl/JavaLangLevelVirtualFileCustomDataProvider.kt b/java/java-impl/src/com/intellij/openapi/roots/impl/JavaLangLevelVirtualFileCustomDataProvider.kt
index 8bd0d9e977d9..0b31cbd31934 100644
--- a/java/java-impl/src/com/intellij/openapi/roots/impl/JavaLangLevelVirtualFileCustomDataProvider.kt
+++ b/java/java-impl/src/com/intellij/openapi/roots/impl/JavaLangLevelVirtualFileCustomDataProvider.kt
@@ -1,7 +1,7 @@
 // Copyright 2000-2023 JetBrains s.r.o. and contributors. Use of this source code is governed by the Apache 2.0 license.
 package com.intellij.openapi.roots.impl
 
-import com.intellij.lang.java.NullableLanguageLevelHolder
+import com.intellij.java.frontback.psi.impl.NullableLanguageLevelHolder
 import com.intellij.openapi.application.readAction
 import com.intellij.openapi.diagnostic.logger
 import com.intellij.openapi.project.Project