diff --git a/platform/collaboration-tools/src/com/intellij/collaboration/ui/codereview/diff/action/CodeReviewDiscussionsToggleAction.kt b/platform/collaboration-tools/src/com/intellij/collaboration/ui/codereview/diff/action/CodeReviewDiscussionsToggleAction.kt
index a8e0878999ae..6167b1e15739 100644
--- a/platform/collaboration-tools/src/com/intellij/collaboration/ui/codereview/diff/action/CodeReviewDiscussionsToggleAction.kt
+++ b/platform/collaboration-tools/src/com/intellij/collaboration/ui/codereview/diff/action/CodeReviewDiscussionsToggleAction.kt
@@ -24,8 +24,8 @@ abstract class CodeReviewDiscussionsToggleAction : ActionGroup(), DumbAware {
 
   protected abstract fun findViewModel(ctx: DataContext): CodeReviewDiscussionsViewModel?
 
-  private class ToggleOptionAction(private val vm: CodeReviewDiscussionsViewModel,
-                                   private val viewOption: DiscussionsViewOption) : ToggleAction(viewOption.toActionName()) {
+  internal class ToggleOptionAction(private val vm: CodeReviewDiscussionsViewModel,
+                                    private val viewOption: DiscussionsViewOption) : ToggleAction(viewOption.toActionName()) {
     override fun getActionUpdateThread(): ActionUpdateThread = ActionUpdateThread.BGT
 
     override fun isSelected(e: AnActionEvent): Boolean {
diff --git a/platform/core-api/src/com/intellij/ide/debug/ApplicationStateDebugSupport.kt b/platform/core-api/src/com/intellij/ide/debug/ApplicationStateDebugSupport.kt
index 42fc50790ebc..7087648c88a5 100644
--- a/platform/core-api/src/com/intellij/ide/debug/ApplicationStateDebugSupport.kt
+++ b/platform/core-api/src/com/intellij/ide/debug/ApplicationStateDebugSupport.kt
@@ -6,7 +6,7 @@ import com.intellij.openapi.application.ApplicationManager
 /**
  * This class is used for IDE debugging to extract the required information about the IDE state in a single method.
  */
-private class ApplicationStateDebugSupport {
+internal class ApplicationStateDebugSupport {
   companion object {
     @Suppress("unused")
     @JvmStatic
@@ -18,4 +18,4 @@ private class ApplicationStateDebugSupport {
 }
 
 @Suppress("unused")
-private class ApplicationDebugState(@JvmField val readActionAllowed: Boolean, @JvmField val writeActionAllowed: Boolean)
+internal class ApplicationDebugState(@JvmField val readActionAllowed: Boolean, @JvmField val writeActionAllowed: Boolean)
diff --git a/platform/credential-store-impl/src/credentialStore/NativeCredentialStoreWrapper.kt b/platform/credential-store-impl/src/credentialStore/NativeCredentialStoreWrapper.kt
index f67b630f2509..848867ebd198 100644
--- a/platform/credential-store-impl/src/credentialStore/NativeCredentialStoreWrapper.kt
+++ b/platform/credential-store-impl/src/credentialStore/NativeCredentialStoreWrapper.kt
@@ -115,14 +115,14 @@ private fun notifyUnsatisfiedLinkError(e: UnsatisfiedLinkError) {
   CredentialStoreUiService.getInstance().notify(CredentialStoreBundle.message("notification.title.native.keychain.unavailable"), message, null, null)
 }
 
-private class MacOsCredentialStoreFactory : CredentialStoreFactory {
+internal class MacOsCredentialStoreFactory : CredentialStoreFactory {
   override fun create(): CredentialStore? = when {
     isMacOsCredentialStoreSupported && JnaLoader.isLoaded() -> NativeCredentialStoreWrapper(KeyChainCredentialStore())
     else -> null
   }
 }
 
-private class LinuxCredentialStoreFactory : CredentialStoreFactory {
+internal class LinuxCredentialStoreFactory : CredentialStoreFactory {
   override fun create(): CredentialStore? = when {
     SystemInfo.isLinux -> {
       @Suppress("SpellCheckingInspection") val preferWallet = Registry.`is`("credentialStore.linux.prefer.kwallet", false)
diff --git a/platform/editor-ui-ex/src/com/intellij/openapi/editor/highlighter/EditorHighlighterFactoryImpl.kt b/platform/editor-ui-ex/src/com/intellij/openapi/editor/highlighter/EditorHighlighterFactoryImpl.kt
index b213068ca072..ce1bd12917e3 100644
--- a/platform/editor-ui-ex/src/com/intellij/openapi/editor/highlighter/EditorHighlighterFactoryImpl.kt
+++ b/platform/editor-ui-ex/src/com/intellij/openapi/editor/highlighter/EditorHighlighterFactoryImpl.kt
@@ -13,7 +13,7 @@ import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.testFramework.LightVirtualFile
 import com.intellij.util.SlowOperations
 
-private class EditorHighlighterFactoryImpl : EditorHighlighterFactory() {
+internal class EditorHighlighterFactoryImpl : EditorHighlighterFactory() {
   override fun createEditorHighlighter(highlighter: SyntaxHighlighter?, colors: EditorColorsScheme): EditorHighlighter {
     return LexerEditorHighlighter(highlighter ?: PlainSyntaxHighlighter(), colors)
   }
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ExternalProjectTaskManagerListener.kt b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ExternalProjectTaskManagerListener.kt
index 0fc65db9daab..aa68d0ffe18d 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ExternalProjectTaskManagerListener.kt
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ExternalProjectTaskManagerListener.kt
@@ -6,7 +6,7 @@ import com.intellij.task.ProjectTaskContext
 import com.intellij.task.ProjectTaskManager
 import com.intellij.task.impl.ProjectTaskManagerListenerExtensionPoint
 
-private class ExternalProjectTaskManagerListener : ProjectTaskManagerListenerExtensionPoint {
+internal class ExternalProjectTaskManagerListener : ProjectTaskManagerListenerExtensionPoint {
   override fun beforeRun(project: Project, context: ProjectTaskContext) {
     ExternalProjectsManagerImpl.getInstance(project).projectTasksBeforeRun(context)
   }
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ReprocessContentRootDataActivity.kt b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ReprocessContentRootDataActivity.kt
index f667d8ec070f..345380bfdfd0 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ReprocessContentRootDataActivity.kt
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/manage/ReprocessContentRootDataActivity.kt
@@ -8,7 +8,7 @@ import com.intellij.openapi.externalSystem.util.ExternalSystemUtil
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.startup.ProjectActivity
 
-private class ReprocessContentRootDataActivity : ProjectActivity {
+internal class ReprocessContentRootDataActivity : ProjectActivity {
 
   init {
     if (ApplicationManager.getApplication().isUnitTestMode) {
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/settings/InspectionsProfileConfigurationHandler.kt b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/settings/InspectionsProfileConfigurationHandler.kt
index 6137b57945cb..c26f41617c8c 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/settings/InspectionsProfileConfigurationHandler.kt
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/project/settings/InspectionsProfileConfigurationHandler.kt
@@ -10,7 +10,7 @@ import com.intellij.openapi.externalSystem.service.project.IdeModifiableModelsPr
 import com.intellij.openapi.project.Project
 import com.intellij.profile.codeInspection.ProjectInspectionProfileManager
 
-private class InspectionsProfileConfigurationHandler: ConfigurationHandler {
+internal class InspectionsProfileConfigurationHandler: ConfigurationHandler {
   override fun apply(project: Project, modelsProvider: IdeModifiableModelsProvider, configuration: ConfigurationData) {
     if (configuration.find("inspections") !is List<*>) return
 
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/settings/ExternalSystemGroupSearchableContributor.kt b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/settings/ExternalSystemGroupSearchableContributor.kt
index 32f04f2d69e5..7d5dbdf0f02c 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/settings/ExternalSystemGroupSearchableContributor.kt
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/service/settings/ExternalSystemGroupSearchableContributor.kt
@@ -7,7 +7,7 @@ import com.intellij.openapi.externalSystem.util.ExternalSystemBundle.message
 import org.jetbrains.annotations.ApiStatus
 
 @ApiStatus.Internal
-private class ExternalSystemGroupSearchableContributor: SearchableOptionContributor() {
+internal class ExternalSystemGroupSearchableContributor: SearchableOptionContributor() {
   private val buildToolsId = "build.tools"
   private val buildToolsName = message("settings.build.tools.display.name")
 
diff --git a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/environment/SystemEnvironment.kt b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/environment/SystemEnvironment.kt
index 096c6a75cdd2..d5d51c431c00 100644
--- a/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/environment/SystemEnvironment.kt
+++ b/platform/external-system-impl/src/com/intellij/openapi/externalSystem/util/environment/SystemEnvironment.kt
@@ -3,7 +3,7 @@ package com.intellij.openapi.externalSystem.util.environment
 
 import com.intellij.util.EnvironmentUtil
 
-private class SystemEnvironment : Environment {
+internal class SystemEnvironment : Environment {
   override fun property(name: String): String? {
     return System.getProperty(name)
   }
diff --git a/platform/feedback/src/com/intellij/platform/feedback/eap/EAPApplicationInitializedListener.kt b/platform/feedback/src/com/intellij/platform/feedback/eap/EAPApplicationInitializedListener.kt
index a1541ef8f159..f25f70df7729 100644
--- a/platform/feedback/src/com/intellij/platform/feedback/eap/EAPApplicationInitializedListener.kt
+++ b/platform/feedback/src/com/intellij/platform/feedback/eap/EAPApplicationInitializedListener.kt
@@ -23,7 +23,7 @@ import kotlin.time.Duration.Companion.minutes
 private const val timerStartedKey = "eap.feedback.scheduled"
 private const val eapFeedbackRegistryKey = "eap.feedback.notification.enabled"
 
-private class EAPApplicationInitializedListener : ApplicationActivity {
+internal class EAPApplicationInitializedListener : ApplicationActivity {
   init {
     if (!isEAPEnv()) {
       throw ExtensionNotApplicableException.create()
diff --git a/platform/feedback/src/com/intellij/platform/feedback/impl/statistics/FeedbackSurveysStateCollector.kt b/platform/feedback/src/com/intellij/platform/feedback/impl/statistics/FeedbackSurveysStateCollector.kt
index 32457a599efa..e158e79fcb86 100644
--- a/platform/feedback/src/com/intellij/platform/feedback/impl/statistics/FeedbackSurveysStateCollector.kt
+++ b/platform/feedback/src/com/intellij/platform/feedback/impl/statistics/FeedbackSurveysStateCollector.kt
@@ -7,7 +7,7 @@ import com.intellij.internal.statistic.eventLog.events.EventFields
 import com.intellij.internal.statistic.service.fus.collectors.ApplicationUsagesCollector
 import com.intellij.platform.feedback.impl.state.CommonFeedbackSurveyService
 
-private class FeedbackSurveysStateCollector : ApplicationUsagesCollector() {
+internal class FeedbackSurveysStateCollector : ApplicationUsagesCollector() {
   private val GROUP = EventLogGroup("feedback.surveys.state", 1)
   private val NUMBER_FEEDBACK_SURVEY_SHOWS = GROUP.registerEvent(
     "number.of.notifications.shown",
diff --git a/platform/feedback/src/com/intellij/platform/feedback/localization/LocalizationFeedbackDialog.kt b/platform/feedback/src/com/intellij/platform/feedback/localization/LocalizationFeedbackDialog.kt
index 1a05c9bef751..ebdb52c0f23d 100644
--- a/platform/feedback/src/com/intellij/platform/feedback/localization/LocalizationFeedbackDialog.kt
+++ b/platform/feedback/src/com/intellij/platform/feedback/localization/LocalizationFeedbackDialog.kt
@@ -153,7 +153,7 @@ internal class LocalizationFeedbackDialog(
   }
 }
 
-private class ShowLocalizationFeedbackDialog : AnAction("Test Localization Dialog") { // NON-NLS
+internal class ShowLocalizationFeedbackDialog : AnAction("Test Localization Dialog") { // NON-NLS
   override fun actionPerformed(e: AnActionEvent) {
     LocalizationFeedbackNotificationService.getInstance().showNotification()
   }
diff --git a/platform/find/backend/src/FindRemoteApiProvider.kt b/platform/find/backend/src/FindRemoteApiProvider.kt
index 665690a47da5..19d53e95c141 100644
--- a/platform/find/backend/src/FindRemoteApiProvider.kt
+++ b/platform/find/backend/src/FindRemoteApiProvider.kt
@@ -5,7 +5,7 @@ import com.intellij.platform.find.FindRemoteApi
 import com.intellij.platform.rpc.backend.RemoteApiProvider
 import fleet.rpc.remoteApiDescriptor
 
-private class FindRemoteApiProvider : RemoteApiProvider {
+internal class FindRemoteApiProvider : RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<FindRemoteApi>()) {
       FindRemoteApiImpl()
diff --git a/platform/find/src/UsageInfoModelPresentationProvider.kt b/platform/find/src/UsageInfoModelPresentationProvider.kt
index 89f315f49ef2..58c7ae08bcf3 100644
--- a/platform/find/src/UsageInfoModelPresentationProvider.kt
+++ b/platform/find/src/UsageInfoModelPresentationProvider.kt
@@ -8,7 +8,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.psi.search.GlobalSearchScope
 import com.intellij.usages.UsageInfoAdapter
 
-private class UsageInfoModelPresentationProvider: UsagePresentationProvider {
+internal class UsageInfoModelPresentationProvider: UsagePresentationProvider {
   override fun getUsagePresentation(usageInfo: UsageInfoAdapter, project: Project, scope: GlobalSearchScope?): UsagePresentation? {
     if (usageInfo !is UsageInfoModel) return null
     val model = usageInfo.model
diff --git a/platform/foldings/src/com/intellij/codeInsight/folding/impl/CodeFoldingNecromancer.kt b/platform/foldings/src/com/intellij/codeInsight/folding/impl/CodeFoldingNecromancer.kt
index ef0c2544501a..c6417e5afe9c 100644
--- a/platform/foldings/src/com/intellij/codeInsight/folding/impl/CodeFoldingNecromancer.kt
+++ b/platform/foldings/src/com/intellij/codeInsight/folding/impl/CodeFoldingNecromancer.kt
@@ -30,7 +30,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import java.util.concurrent.CancellationException
 
-private class CodeFoldingNecromancerAwaker : NecromancerAwaker<CodeFoldingZombie> {
+internal class CodeFoldingNecromancerAwaker : NecromancerAwaker<CodeFoldingZombie> {
   override fun awake(project: Project, coroutineScope: CoroutineScope): Necromancer<CodeFoldingZombie> {
     return CodeFoldingNecromancer(project, coroutineScope)
   }
diff --git a/platform/foldings/src/com/intellij/codeInsight/folding/impl/FoldingHintPostStartupActivity.kt b/platform/foldings/src/com/intellij/codeInsight/folding/impl/FoldingHintPostStartupActivity.kt
index e4cbf1e65639..325fa5815374 100644
--- a/platform/foldings/src/com/intellij/codeInsight/folding/impl/FoldingHintPostStartupActivity.kt
+++ b/platform/foldings/src/com/intellij/codeInsight/folding/impl/FoldingHintPostStartupActivity.kt
@@ -6,7 +6,7 @@ import com.intellij.openapi.editor.EditorFactory
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.startup.ProjectActivity
 
-private class FoldingHintPostStartupActivity : ProjectActivity {
+internal class FoldingHintPostStartupActivity : ProjectActivity {
   override suspend fun execute(project: Project) {
     serviceAsync<EditorFactory>().eventMulticaster.addEditorMouseMotionListener(FoldingHintMouseMotionListener(project), project)
   }
diff --git a/platform/foldings/src/com/intellij/codeInsight/folding/impl/actions/ExpandCollapseToggleAction.kt b/platform/foldings/src/com/intellij/codeInsight/folding/impl/actions/ExpandCollapseToggleAction.kt
index 47a37209a543..2083632ab8a0 100644
--- a/platform/foldings/src/com/intellij/codeInsight/folding/impl/actions/ExpandCollapseToggleAction.kt
+++ b/platform/foldings/src/com/intellij/codeInsight/folding/impl/actions/ExpandCollapseToggleAction.kt
@@ -9,7 +9,7 @@ import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.FoldRegion
 import com.intellij.openapi.editor.actionSystem.EditorAction
 
-private class ExpandCollapseToggleAction : EditorAction(object : BaseFoldingHandler() {
+internal class ExpandCollapseToggleAction : EditorAction(object : BaseFoldingHandler() {
   override fun doExecute(editor: Editor, caret: Caret?, dataContext: DataContext?) {
     val line = editor.caretModel.logicalPosition.line
 
diff --git a/platform/inline-completion/shared/src/shortcut/InlineCompletionChooseShortcutElement.kt b/platform/inline-completion/shared/src/shortcut/InlineCompletionChooseShortcutElement.kt
index 45644ea65e01..fb1c707fe8c5 100644
--- a/platform/inline-completion/shared/src/shortcut/InlineCompletionChooseShortcutElement.kt
+++ b/platform/inline-completion/shared/src/shortcut/InlineCompletionChooseShortcutElement.kt
@@ -255,7 +255,7 @@ private fun showChooseShortcutPopup(editor: Editor, relativePoint: RelativePoint
   popup.show(relativePoint)
 }
 
-private class ChangeShortcutAction(
+internal class ChangeShortcutAction(
   @NlsActions.ActionText text: String,
   shortcut: Shortcut,
   private val editor: Editor,
diff --git a/platform/inspect/src/com/intellij/inspectopedia/extractor/InspectopediaExtractor.kt b/platform/inspect/src/com/intellij/inspectopedia/extractor/InspectopediaExtractor.kt
index e4f30440d727..5c830f2c3958 100644
--- a/platform/inspect/src/com/intellij/inspectopedia/extractor/InspectopediaExtractor.kt
+++ b/platform/inspect/src/com/intellij/inspectopedia/extractor/InspectopediaExtractor.kt
@@ -27,7 +27,7 @@ import java.nio.file.Path
 import java.util.*
 import kotlin.system.exitProcess
 
-private class InspectopediaExtractor : ModernApplicationStarter() {
+internal class InspectopediaExtractor : ModernApplicationStarter() {
   override suspend fun start(args: List<String>) {
     val size = args.size
     if (size < 2) {
diff --git a/platform/kernel/backend/src/BackendEntity.kt b/platform/kernel/backend/src/BackendEntity.kt
index f63223ccdfb6..2db257574809 100644
--- a/platform/kernel/backend/src/BackendEntity.kt
+++ b/platform/kernel/backend/src/BackendEntity.kt
@@ -9,7 +9,7 @@ import kotlinx.coroutines.NonCancellable
 import kotlinx.coroutines.withContext
 import org.jetbrains.annotations.ApiStatus
 
-private class BackendValueEntityTypesProvider : EntityTypeProvider {
+internal class BackendValueEntityTypesProvider : EntityTypeProvider {
   override fun entityTypes(): List<EntityType<*>> {
     return listOf(
       BackendRhizomeValueEntity
diff --git a/platform/lang-impl/backend/src/IdeLanguageCustomizationApiImpl.kt b/platform/lang-impl/backend/src/IdeLanguageCustomizationApiImpl.kt
index 80ace27af964..15ecfdb8b33c 100644
--- a/platform/lang-impl/backend/src/IdeLanguageCustomizationApiImpl.kt
+++ b/platform/lang-impl/backend/src/IdeLanguageCustomizationApiImpl.kt
@@ -29,7 +29,7 @@ private class IdeLanguageCustomizationApiImpl : IdeLanguageCustomizationApi {
   }
 }
 
-private class IdeLanguageCustomizationApiProvider : RemoteApiProvider {
+internal class IdeLanguageCustomizationApiProvider : RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<IdeLanguageCustomizationApi>()) {
       IdeLanguageCustomizationApiImpl()
diff --git a/platform/managed-cache/managed.cache.backend/src/RemoteManagedCacheApiImplProvider.kt b/platform/managed-cache/managed.cache.backend/src/RemoteManagedCacheApiImplProvider.kt
index a18cab62909b..29ce2a6faa72 100644
--- a/platform/managed-cache/managed.cache.backend/src/RemoteManagedCacheApiImplProvider.kt
+++ b/platform/managed-cache/managed.cache.backend/src/RemoteManagedCacheApiImplProvider.kt
@@ -5,7 +5,7 @@ import com.intellij.platform.managed.cache.RemoteManagedCacheApi
 import com.intellij.platform.rpc.backend.RemoteApiProvider
 import fleet.rpc.remoteApiDescriptor
 
-private class RemoteManagedCacheApiImplProvider : RemoteApiProvider {
+internal class RemoteManagedCacheApiImplProvider : RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<RemoteManagedCacheApi>()) {
       RemoteManagedCacheApiImpl()
diff --git a/platform/ml-impl/src/com/intellij/internal/statistic/local/FileTypeUsageLocalSummary.kt b/platform/ml-impl/src/com/intellij/internal/statistic/local/FileTypeUsageLocalSummary.kt
index 4a54829d4ae0..ddf4c5a502f0 100644
--- a/platform/ml-impl/src/com/intellij/internal/statistic/local/FileTypeUsageLocalSummary.kt
+++ b/platform/ml-impl/src/com/intellij/internal/statistic/local/FileTypeUsageLocalSummary.kt
@@ -19,9 +19,9 @@ import org.jetbrains.annotations.ApiStatus
  * This class is implemented as a project service. Use the [FileTypeUsageSummaryProvider] to get the service.
  */
 @State(name = "FileTypeUsageLocalSummary", storages = [Storage(StoragePathMacros.PRODUCT_WORKSPACE_FILE)], reportStatistic = false)
-private class FileTypeUsageLocalSummary : PersistentStateComponent<FileTypeUsageLocalSummaryState>,
-                                          FileTypeUsageSummaryProvider,
-                                          SimpleModificationTracker() {
+internal class FileTypeUsageLocalSummary : PersistentStateComponent<FileTypeUsageLocalSummaryState>,
+                                           FileTypeUsageSummaryProvider,
+                                           SimpleModificationTracker() {
   @Volatile
   private var state = FileTypeUsageLocalSummaryState()
 
diff --git a/platform/navbar/monolith/src/MonolithNavBarServiceDelegate.kt b/platform/navbar/monolith/src/MonolithNavBarServiceDelegate.kt
index a3fafbee921d..463ef77fd00e 100644
--- a/platform/navbar/monolith/src/MonolithNavBarServiceDelegate.kt
+++ b/platform/navbar/monolith/src/MonolithNavBarServiceDelegate.kt
@@ -15,7 +15,7 @@ import kotlinx.coroutines.channels.awaitClose
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.channelFlow
 
-private class MonolithNavbarServiceDelegate(private val project: Project) : NavBarServiceDelegate {
+internal class MonolithNavbarServiceDelegate(private val project: Project) : NavBarServiceDelegate {
 
   override fun activityFlow(): Flow<Unit> = channelFlow {
     fireOnIdeActivity(project)
diff --git a/platform/polySymbols/backend/src/com/intellij/polySymbols/highlighting/impl/PolySymbolHighlightingAnnotator.kt b/platform/polySymbols/backend/src/com/intellij/polySymbols/highlighting/impl/PolySymbolHighlightingAnnotator.kt
index 69df585bc83f..6646e2f04bd1 100644
--- a/platform/polySymbols/backend/src/com/intellij/polySymbols/highlighting/impl/PolySymbolHighlightingAnnotator.kt
+++ b/platform/polySymbols/backend/src/com/intellij/polySymbols/highlighting/impl/PolySymbolHighlightingAnnotator.kt
@@ -53,7 +53,7 @@ import java.util.*
 
 private val INSPECTION_TOOL_INFO_CACHE = Key.create<MutableMap<String, InspectionToolInfo>>("polySymbols.inspectionTools")
 
-private class PolySymbolHighlightingAnnotator : Annotator {
+internal class PolySymbolHighlightingAnnotator : Annotator {
 
   private val symbolReferencesProvider = PsiPolySymbolReferenceProviderImpl()
 
diff --git a/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRefactoringHelper.kt b/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRefactoringHelper.kt
index 595b521d995e..8474b3f8175a 100644
--- a/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRefactoringHelper.kt
+++ b/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRefactoringHelper.kt
@@ -11,7 +11,7 @@ import com.intellij.refactoring.RefactoringHelper
 import com.intellij.refactoring.rename.RenameUtil
 import com.intellij.usageView.UsageInfo
 
-private class PsiSourcedPolySymbolRefactoringHelper : RefactoringHelper<List<RenameHandler>> {
+internal class PsiSourcedPolySymbolRefactoringHelper : RefactoringHelper<List<RenameHandler>> {
   override fun prepareOperation(usages: Array<out UsageInfo>, elements: List<PsiElement>): List<RenameHandler> =
     usages.mapNotNull { (it.reference as? PsiSourcedPolySymbolReference)?.createRenameHandler() }
 
diff --git a/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRenameHandler.kt b/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRenameHandler.kt
index 0467d9add3f9..49fcdae2877a 100644
--- a/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRenameHandler.kt
+++ b/platform/polySymbols/backend/src/com/intellij/polySymbols/refactoring/PsiSourcedPolySymbolRenameHandler.kt
@@ -14,7 +14,7 @@ import com.intellij.psi.PsiFile
 import com.intellij.refactoring.rename.PsiElementRenameHandler
 import com.intellij.refactoring.rename.RenameHandler
 
-private class PsiSourcedPolySymbolRenameHandler : RenameHandler, TitledHandler {
+internal class PsiSourcedPolySymbolRenameHandler : RenameHandler, TitledHandler {
 
   private var symbol: PsiSourcedPolySymbol? = null
 
diff --git a/platform/projectModel-impl/src/com/intellij/configurationStore/ProjectIdManager.kt b/platform/projectModel-impl/src/com/intellij/configurationStore/ProjectIdManager.kt
index e5634f17124f..e162cc02c690 100644
--- a/platform/projectModel-impl/src/com/intellij/configurationStore/ProjectIdManager.kt
+++ b/platform/projectModel-impl/src/com/intellij/configurationStore/ProjectIdManager.kt
@@ -16,7 +16,7 @@ interface ProjectIdManager {
 }
 
 @State(name = "ProjectId", storages = [(Storage(StoragePathMacros.WORKSPACE_FILE))], reportStatistic = false)
-private class ProjectIdManagerImpl : SerializablePersistentStateComponent<ProjectIdManagerImpl.State>(State()), ProjectIdManager {
+internal class ProjectIdManagerImpl : SerializablePersistentStateComponent<ProjectIdManagerImpl.State>(State()), ProjectIdManager {
   override var id: @NonNls String?
     get() = state.id
     set(value) {
diff --git a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/WorkspaceEntitiesLifecycleActivity.kt b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/WorkspaceEntitiesLifecycleActivity.kt
index a90950367f82..dc404fcface3 100644
--- a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/WorkspaceEntitiesLifecycleActivity.kt
+++ b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/WorkspaceEntitiesLifecycleActivity.kt
@@ -13,7 +13,7 @@ import kotlinx.coroutines.awaitCancellation
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.launch
 
-private class WorkspaceEntitiesLifecycleActivity : ProjectActivity {
+internal class WorkspaceEntitiesLifecycleActivity : ProjectActivity {
   init {
     if (ApplicationManager.getApplication().isUnitTestMode) {
       throw ExtensionNotApplicableException.create()
diff --git a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/legacyBridge/library/ProjectLibraryTableBridgeImpl.kt b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/legacyBridge/library/ProjectLibraryTableBridgeImpl.kt
index 817fe4c49076..f57214e195cb 100644
--- a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/legacyBridge/library/ProjectLibraryTableBridgeImpl.kt
+++ b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/legacyBridge/library/ProjectLibraryTableBridgeImpl.kt
@@ -30,7 +30,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 import org.jetbrains.annotations.ApiStatus
 
-private class ProjectLibraryTableBridgeInitializer : BridgeInitializer {
+internal class ProjectLibraryTableBridgeInitializer : BridgeInitializer {
   override fun isEnabled(): Boolean = true
 
   override fun initializeBridges(project: Project, changes: Map<Class<*>, List<EntityChange<*>>>, builder: MutableEntityStorage) {
diff --git a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/orphanage.kt b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/orphanage.kt
index 5efa8e42cbe5..b30888f7a2c1 100644
--- a/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/orphanage.kt
+++ b/platform/projectModel-impl/src/com/intellij/workspaceModel/ide/impl/orphanage.kt
@@ -31,7 +31,7 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
 import kotlin.system.measureTimeMillis
 
-private class OrphanageActivity : ProjectActivity {
+internal class OrphanageActivity : ProjectActivity {
   override suspend fun execute(project: Project) {
     if (useReactiveWorkspaceModelApi()) {
       setupOpenTelemetryReporting(jpsMetrics.meter)
diff --git a/platform/recentFiles/backend/src/com/intellij/platform/recentFiles/backend/FilesSwitcherBackendApi.kt b/platform/recentFiles/backend/src/com/intellij/platform/recentFiles/backend/FilesSwitcherBackendApi.kt
index e23f0e65119e..bef92c141ba7 100644
--- a/platform/recentFiles/backend/src/com/intellij/platform/recentFiles/backend/FilesSwitcherBackendApi.kt
+++ b/platform/recentFiles/backend/src/com/intellij/platform/recentFiles/backend/FilesSwitcherBackendApi.kt
@@ -44,7 +44,7 @@ private class FilesSwitcherBackendApi : FileSwitcherApi {
   }
 }
 
-private class RecentFilesBackendApiProvider : RemoteApiProvider {
+internal class RecentFilesBackendApiProvider : RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<FileSwitcherApi>()) {
       FilesSwitcherBackendApi()
diff --git a/platform/remote-topics/backend/src/com/intellij/platform/rpc/topics/backend/BackendRemoteTopicApiProvider.kt b/platform/remote-topics/backend/src/com/intellij/platform/rpc/topics/backend/BackendRemoteTopicApiProvider.kt
index 88ec0d5c0d7d..167e64dadf97 100644
--- a/platform/remote-topics/backend/src/com/intellij/platform/rpc/topics/backend/BackendRemoteTopicApiProvider.kt
+++ b/platform/remote-topics/backend/src/com/intellij/platform/rpc/topics/backend/BackendRemoteTopicApiProvider.kt
@@ -5,7 +5,7 @@ import com.intellij.platform.rpc.backend.RemoteApiProvider
 import com.intellij.platform.rpc.topics.impl.RemoteTopicApi
 import fleet.rpc.remoteApiDescriptor
 
-private class BackendRemoteTopicApiProvider : RemoteApiProvider {
+internal class BackendRemoteTopicApiProvider : RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<RemoteTopicApi>()) {
       BackendRemoteTopicApi()
diff --git a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/CustomExportersListener.kt b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/CustomExportersListener.kt
index 9f41cd9f60fd..c43d7351a3da 100644
--- a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/CustomExportersListener.kt
+++ b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/CustomExportersListener.kt
@@ -7,7 +7,7 @@ import com.intellij.platform.diagnostic.telemetry.MetricsExporterEntry
 import com.intellij.platform.diagnostic.telemetry.TelemetryManager
 import com.intellij.platform.diagnostic.telemetry.impl.OpenTelemetryExporterProvider
 
-private class CustomExportersListener : ApplicationInitializedListener {
+internal class CustomExportersListener : ApplicationInitializedListener {
   override suspend fun execute() {
     val ep = ExtensionPointName<OpenTelemetryExporterProvider>("com.intellij.openTelemetryExporterProvider")
     if (!ep.hasAnyExtensions()) {
diff --git a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/LuxExportersProvider.kt b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/LuxExportersProvider.kt
index 63f65cded504..af29b076923e 100644
--- a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/LuxExportersProvider.kt
+++ b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/LuxExportersProvider.kt
@@ -12,7 +12,7 @@ import io.opentelemetry.sdk.metrics.export.MetricExporter
 import java.nio.file.Path
 import kotlin.time.Duration.Companion.seconds
 
-private class LuxExportersProvider : OpenTelemetryExporterProvider {
+internal class LuxExportersProvider : OpenTelemetryExporterProvider {
   override fun getMetricsExporters(): List<MetricExporter> {
     if (System.getProperty(OpenTelemetryUtils.RDCT_LUX_METRICS_DIAGNOSTIC_FLAG) == null) {
       return emptyList()
diff --git a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/RdctExportersProvider.kt b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/RdctExportersProvider.kt
index 1f19264eb4a4..b79fbe6bb42f 100644
--- a/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/RdctExportersProvider.kt
+++ b/platform/remoteDev-util/src/com/intellij/remoteDev/tracing/RdctExportersProvider.kt
@@ -11,7 +11,7 @@ import io.opentelemetry.sdk.metrics.export.MetricExporter
 import java.nio.file.Path
 import kotlin.time.Duration.Companion.seconds
 
-private class RdctExportersProvider : OpenTelemetryExporterProvider {
+internal class RdctExportersProvider : OpenTelemetryExporterProvider {
   override fun getSpanExporters(): List<AsyncSpanExporter> {
     if (System.getProperty(OpenTelemetryUtils.RDCT_TRACING_DIAGNOSTIC_FLAG) != null && OtlpConfiguration.isTraceEnabled()) {
       return listOf(MessageBusSpanExporter())
diff --git a/platform/searchEverywhere/backend/src/impl/SeRemoteApiProvider.kt b/platform/searchEverywhere/backend/src/impl/SeRemoteApiProvider.kt
index d8030a190749..1beefa2d8e1d 100644
--- a/platform/searchEverywhere/backend/src/impl/SeRemoteApiProvider.kt
+++ b/platform/searchEverywhere/backend/src/impl/SeRemoteApiProvider.kt
@@ -7,7 +7,7 @@ import fleet.rpc.remoteApiDescriptor
 import org.jetbrains.annotations.ApiStatus.Internal
 
 @Internal
-private class SeRemoteApiProvider: RemoteApiProvider {
+internal class SeRemoteApiProvider: RemoteApiProvider {
   override fun RemoteApiProvider.Sink.remoteApis() {
     remoteApi(remoteApiDescriptor<SeRemoteApi>()) {
       SeRemoteApiImpl()
diff --git a/platform/searchEverywhere/backend/src/providers/text/SeTextItemsProviderFactory.kt b/platform/searchEverywhere/backend/src/providers/text/SeTextItemsProviderFactory.kt
index b70189c57598..2d3c006d68a4 100644
--- a/platform/searchEverywhere/backend/src/providers/text/SeTextItemsProviderFactory.kt
+++ b/platform/searchEverywhere/backend/src/providers/text/SeTextItemsProviderFactory.kt
@@ -10,7 +10,7 @@ import com.intellij.platform.searchEverywhere.SeProviderIdUtils
 import com.intellij.platform.searchEverywhere.providers.SeAsyncContributorWrapper
 import com.intellij.platform.searchEverywhere.providers.SeWrappedLegacyContributorItemsProviderFactory
 
-private class SeTextItemsProviderFactory : SeWrappedLegacyContributorItemsProviderFactory {
+internal class SeTextItemsProviderFactory : SeWrappedLegacyContributorItemsProviderFactory {
   override val id: String get() = SeProviderIdUtils.TEXT_ID
 
   override suspend fun getItemsProvider(project: Project?, legacyContributor: SearchEverywhereContributor<Any>): SeItemsProvider? {
diff --git a/platform/searchEverywhere/backend/src/providers/topHit/SeBackendTopHitItemsProviderFactory.kt b/platform/searchEverywhere/backend/src/providers/topHit/SeBackendTopHitItemsProviderFactory.kt
index 645930aa36f5..7a8a69c9cdae 100644
--- a/platform/searchEverywhere/backend/src/providers/topHit/SeBackendTopHitItemsProviderFactory.kt
+++ b/platform/searchEverywhere/backend/src/providers/topHit/SeBackendTopHitItemsProviderFactory.kt
@@ -5,7 +5,7 @@ import com.intellij.ide.IdeBundle
 import com.intellij.platform.searchEverywhere.providers.topHit.SeTopHitItemsProviderFactory
 import org.jetbrains.annotations.Nls
 
-private class SeBackendTopHitItemsProviderFactory : SeTopHitItemsProviderFactory() {
+internal class SeBackendTopHitItemsProviderFactory : SeTopHitItemsProviderFactory() {
   override val isHost: Boolean
     get() = true
   override val displayName: @Nls String
diff --git a/platform/settings-local/src/com/intellij/platform/settings/local/JsonMirrorController.kt b/platform/settings-local/src/com/intellij/platform/settings/local/JsonMirrorController.kt
index 9e11e7180c3e..ce2943c9505b 100644
--- a/platform/settings-local/src/com/intellij/platform/settings/local/JsonMirrorController.kt
+++ b/platform/settings-local/src/com/intellij/platform/settings/local/JsonMirrorController.kt
@@ -26,7 +26,7 @@ import kotlin.time.Duration.Companion.seconds
 import kotlin.time.DurationUnit
 import kotlin.time.toDuration
 
-private class JsonMirrorController @JvmOverloads constructor(private val isProjectLevel: Boolean = false) : DelegatedSettingsController {
+internal class JsonMirrorController @JvmOverloads constructor(private val isProjectLevel: Boolean = false) : DelegatedSettingsController {
   init {
     if (!System.getProperty("idea.settings.json.mirror", "false").toBoolean()) {
       throw ExtensionNotApplicableException.create()
diff --git a/platform/settings-local/src/com/intellij/platform/settings/local/LocalSettingsController.kt b/platform/settings-local/src/com/intellij/platform/settings/local/LocalSettingsController.kt
index 8db4776adc38..49aeb6279932 100644
--- a/platform/settings-local/src/com/intellij/platform/settings/local/LocalSettingsController.kt
+++ b/platform/settings-local/src/com/intellij/platform/settings/local/LocalSettingsController.kt
@@ -18,7 +18,7 @@ fun clearCacheStore() {
   serviceIfCreated<InternalAndCacheStorageManager>()?.storeManager?.clear()
 }
 
-private class LocalSettingsController : DelegatedSettingsController {
+internal class LocalSettingsController : DelegatedSettingsController {
   private val storageManager = SynchronizedClearableLazy { service<InternalAndCacheStorageManager>() }
 
   override fun <T : Any> getItem(key: SettingDescriptor<T>): GetResult<T?> {
@@ -108,7 +108,7 @@ private class InternalAndCacheStorageManager : SettingsSavingComponent {
 private fun getEffectiveKey(key: SettingDescriptor<*>): String = "${key.pluginId.idString}.${key.key}"
 
 @Suppress("unused")
-private class CacheStateStorageInvalidator : CachesInvalidator() {
+internal class CacheStateStorageInvalidator : CachesInvalidator() {
   override fun invalidateCaches() {
     service<InternalAndCacheStorageManager>().invalidateCaches()
   }
diff --git a/platform/settings-sync-core/src/com/intellij/settingsSync/core/SettingsSynchronizer.kt b/platform/settings-sync-core/src/com/intellij/settingsSync/core/SettingsSynchronizer.kt
index d063054ce5c9..3d78ad56c50b 100644
--- a/platform/settings-sync-core/src/com/intellij/settingsSync/core/SettingsSynchronizer.kt
+++ b/platform/settings-sync-core/src/com/intellij/settingsSync/core/SettingsSynchronizer.kt
@@ -23,7 +23,7 @@ private val LOG = logger<SettingsSynchronizer>()
 
 private val MIGRATION_EP = ExtensionPointName<SettingsSyncMigration>("com.intellij.settingsSyncMigration")
 
-private class SettingsSynchronizerApplicationInitializedListener : ApplicationActivity {
+internal class SettingsSynchronizerApplicationInitializedListener : ApplicationActivity {
 
   override suspend fun execute() {
     val settingsSyncEventListener = object : SettingsSyncEventListener {
diff --git a/platform/settings-sync-core/src/com/intellij/settingsSync/core/git/SettingsSyncHistoryAction.kt b/platform/settings-sync-core/src/com/intellij/settingsSync/core/git/SettingsSyncHistoryAction.kt
index 27d14488bafa..72b4d7bcc274 100644
--- a/platform/settings-sync-core/src/com/intellij/settingsSync/core/git/SettingsSyncHistoryAction.kt
+++ b/platform/settings-sync-core/src/com/intellij/settingsSync/core/git/SettingsSyncHistoryAction.kt
@@ -13,7 +13,7 @@ import git4idea.log.showExternalGitLogInToolwindow
 import java.util.function.Supplier
 
 @Deprecated("Please remove me after moving to new Settings Sync toolwindow")
-private class SettingsSyncHistoryAction : DumbAwareAction() {
+internal class SettingsSyncHistoryAction : DumbAwareAction() {
   override fun actionPerformed(e: AnActionEvent) {
     val project = e.project!!
 
diff --git a/platform/smRunner/vcs/src/com/intellij/execution/vcs/RunConfigurationBeforeCommitHandlerFactory.kt b/platform/smRunner/vcs/src/com/intellij/execution/vcs/RunConfigurationBeforeCommitHandlerFactory.kt
index d2b7329da2cb..b09be994ab7f 100644
--- a/platform/smRunner/vcs/src/com/intellij/execution/vcs/RunConfigurationBeforeCommitHandlerFactory.kt
+++ b/platform/smRunner/vcs/src/com/intellij/execution/vcs/RunConfigurationBeforeCommitHandlerFactory.kt
@@ -74,7 +74,7 @@ private class VcsRunConfigurationBeforeCommitConfig : PersistentStateComponent<V
   }
 }
 
-private class RunConfigurationBeforeCommitHandlerFactory : CheckinHandlerFactory() {
+internal class RunConfigurationBeforeCommitHandlerFactory : CheckinHandlerFactory() {
   override fun createHandler(panel: CheckinProjectPanel, commitContext: CommitContext): CheckinHandler {
     if (panel.isNonModalCommit || panel.commitWorkflowHandler is NullCommitWorkflowHandler) {
       return RunConfigurationBeforeCommitHandler(panel.project)
diff --git a/platform/smart-update/src/com/intellij/smartUpdate/PluginsUpdateStep.kt b/platform/smart-update/src/com/intellij/smartUpdate/PluginsUpdateStep.kt
index 464e921d5376..5a147409ac1d 100644
--- a/platform/smart-update/src/com/intellij/smartUpdate/PluginsUpdateStep.kt
+++ b/platform/smart-update/src/com/intellij/smartUpdate/PluginsUpdateStep.kt
@@ -14,7 +14,7 @@ import javax.swing.JComponent
 
 private const val PLUGINS_UPDATE = "plugins.update"
 
-private class PluginsUpdateStep: SmartUpdateStep {
+internal class PluginsUpdateStep: SmartUpdateStep {
   override val id = PLUGINS_UPDATE
   override val stepName = SmartUpdateBundle.message("update.plugins")
 
diff --git a/platform/tasks-platform-impl/src/com/intellij/tasks/context/OpenEditorsContextProvider.kt b/platform/tasks-platform-impl/src/com/intellij/tasks/context/OpenEditorsContextProvider.kt
index 75693574efc0..9f796aa2d414 100644
--- a/platform/tasks-platform-impl/src/com/intellij/tasks/context/OpenEditorsContextProvider.kt
+++ b/platform/tasks-platform-impl/src/com/intellij/tasks/context/OpenEditorsContextProvider.kt
@@ -15,7 +15,7 @@ import org.jdom.Element
 import java.awt.KeyboardFocusManager
 import java.awt.Window
 
-private class OpenEditorsContextProvider : WorkingContextProvider() {
+internal class OpenEditorsContextProvider : WorkingContextProvider() {
   override fun getId(): String = "editors"
 
   override fun getDescription(): String = TaskBundle.message("open.editors.and.positions")
diff --git a/platform/tips-of-the-day/src/com/intellij/ide/TipOfTheDayStartupActivity.kt b/platform/tips-of-the-day/src/com/intellij/ide/TipOfTheDayStartupActivity.kt
index e81535521271..59746df1597e 100644
--- a/platform/tips-of-the-day/src/com/intellij/ide/TipOfTheDayStartupActivity.kt
+++ b/platform/tips-of-the-day/src/com/intellij/ide/TipOfTheDayStartupActivity.kt
@@ -19,7 +19,7 @@ import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.suspendCancellableCoroutine
 import kotlinx.coroutines.withContext
 
-private class TipOfTheDayStartupActivity : ProjectActivity {
+internal class TipOfTheDayStartupActivity : ProjectActivity {
   init {
     if (ApplicationManager.getApplication().isHeadlessEnvironment ||
         ApplicationManager.getApplication().isUnitTestMode ||
diff --git a/platform/tips-of-the-day/src/com/intellij/ide/actions/SelectAndShowTipAction.kt b/platform/tips-of-the-day/src/com/intellij/ide/actions/SelectAndShowTipAction.kt
index 94c8ecb4551d..1a31cc90cfca 100644
--- a/platform/tips-of-the-day/src/com/intellij/ide/actions/SelectAndShowTipAction.kt
+++ b/platform/tips-of-the-day/src/com/intellij/ide/actions/SelectAndShowTipAction.kt
@@ -12,7 +12,7 @@ import com.intellij.ui.SimpleListCellRenderer
 import com.intellij.ui.components.JBList
 import kotlinx.coroutines.launch
 
-private class SelectAndShowTipAction : DumbAwareAction() {
+internal class SelectAndShowTipAction : DumbAwareAction() {
   override fun actionPerformed(e: AnActionEvent) {
     val project = e.project ?: return
     val tips = TipAndTrickBean.EP_NAME.extensionList.sortedBy { tip -> tip.id.lowercase() }
diff --git a/platform/tips-of-the-day/src/com/intellij/ide/actions/ShowTipsAction.kt b/platform/tips-of-the-day/src/com/intellij/ide/actions/ShowTipsAction.kt
index cd6b877aa5af..ee6e03d38a45 100644
--- a/platform/tips-of-the-day/src/com/intellij/ide/actions/ShowTipsAction.kt
+++ b/platform/tips-of-the-day/src/com/intellij/ide/actions/ShowTipsAction.kt
@@ -16,7 +16,7 @@ import com.intellij.platform.ide.progress.withBackgroundProgress
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.launch
 
-private class ShowTipsAction : AnAction(), DumbAware, ActionRemoteBehaviorSpecification.BackendOnly {
+internal class ShowTipsAction : AnAction(), DumbAware, ActionRemoteBehaviorSpecification.BackendOnly {
 
   override fun actionPerformed(e: AnActionEvent) {
     val project = e.project
diff --git a/platform/tips-of-the-day/src/com/intellij/ide/util/TipAndTrickManagerImpl.kt b/platform/tips-of-the-day/src/com/intellij/ide/util/TipAndTrickManagerImpl.kt
index 359e2934b8d7..f7c58c54c348 100644
--- a/platform/tips-of-the-day/src/com/intellij/ide/util/TipAndTrickManagerImpl.kt
+++ b/platform/tips-of-the-day/src/com/intellij/ide/util/TipAndTrickManagerImpl.kt
@@ -12,7 +12,7 @@ import com.intellij.ui.GotItTooltipService
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.withContext
 
-private class TipAndTrickManagerImpl : TipAndTrickManager {
+internal class TipAndTrickManagerImpl : TipAndTrickManager {
   private var openedDialog: TipDialog? = null
 
   override suspend fun showTipDialog(project: Project?) = showTipDialog(project = project, tips = TipAndTrickBean.EP_NAME.extensionList)
diff --git a/platform/ui.jcef/jcef/JBCefAppCacheInvalidator.kt b/platform/ui.jcef/jcef/JBCefAppCacheInvalidator.kt
index 00667c53920a..f37b2a553c02 100644
--- a/platform/ui.jcef/jcef/JBCefAppCacheInvalidator.kt
+++ b/platform/ui.jcef/jcef/JBCefAppCacheInvalidator.kt
@@ -6,7 +6,7 @@ import com.intellij.ide.caches.CachesInvalidator
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.components.service
 
-private class JBCefAppCacheInvalidator : CachesInvalidator() {
+internal class JBCefAppCacheInvalidator : CachesInvalidator() {
 
   override fun getComment(): String = IdeBundle.message("jcef.local.cache.invalidate.comment")
 
diff --git a/platform/ui.jcef/jcef/JBCefStartup.kt b/platform/ui.jcef/jcef/JBCefStartup.kt
index f4e40061389c..7ace8fdebfe4 100644
--- a/platform/ui.jcef/jcef/JBCefStartup.kt
+++ b/platform/ui.jcef/jcef/JBCefStartup.kt
@@ -14,7 +14,7 @@ import kotlinx.coroutines.launch
 /**
  * Forces JCEF early startup in order to support co-existence with JavaFX (see IDEA-236310).
  */
-private class JBCefStartup(coroutineScope: CoroutineScope) {
+internal class JBCefStartup(coroutineScope: CoroutineScope) {
   @Suppress("unused")
   private var STARTUP_CLIENT: JBCefClient? = null // auto-disposed along with JBCefApp on IDE shutdown
 
diff --git a/platform/usageView-impl/src/com/intellij/usages/impl/usageFilteringRuleActions.kt b/platform/usageView-impl/src/com/intellij/usages/impl/usageFilteringRuleActions.kt
index bb29600a5952..177bb20af473 100644
--- a/platform/usageView-impl/src/com/intellij/usages/impl/usageFilteringRuleActions.kt
+++ b/platform/usageView-impl/src/com/intellij/usages/impl/usageFilteringRuleActions.kt
@@ -22,7 +22,7 @@ internal fun usageFilteringRuleActions(project: Project, ruleState: UsageFilteri
   return result
 }
 
-private class UsageFilteringRuleAction(
+internal class UsageFilteringRuleAction(
   prototype: EmptyAction,
   private val ruleState: UsageFilteringRuleState,
   private val ruleId: String,
diff --git a/platform/whatsNew/src/com/intellij/platform/whatsNew/reaction/ReactionsPanel.kt b/platform/whatsNew/src/com/intellij/platform/whatsNew/reaction/ReactionsPanel.kt
index c2051a771a6a..015c3c2d114d 100644
--- a/platform/whatsNew/src/com/intellij/platform/whatsNew/reaction/ReactionsPanel.kt
+++ b/platform/whatsNew/src/com/intellij/platform/whatsNew/reaction/ReactionsPanel.kt
@@ -57,9 +57,9 @@ class ReactionsPanel {
 }
 
 
-private class LikeReactionAction : ReactionAction(CommonBundle.message("button.without.mnemonic.yes"), AllIcons.Ide.LikeDimmed,
-                                                  AllIcons.Ide.Like,
-                                                  AllIcons.Ide.LikeSelected) {
+internal class LikeReactionAction : ReactionAction(CommonBundle.message("button.without.mnemonic.yes"), AllIcons.Ide.LikeDimmed,
+                                                   AllIcons.Ide.Like,
+                                                   AllIcons.Ide.LikeSelected) {
   override fun isSelected(e: AnActionEvent): Boolean {
     return getReactionStateChecker(e)?.checkState(ReactionChecker.State.Liked) == true
   }
@@ -69,8 +69,8 @@ private class LikeReactionAction : ReactionAction(CommonBundle.message("button.w
   }
 }
 
-private class DislikeReactionAction : ReactionAction(CommonBundle.message("button.without.mnemonic.no"), AllIcons.Ide.DislikeDimmed,
-                                                     AllIcons.Ide.Dislike, AllIcons.Ide.DislikeSelected) {
+internal class DislikeReactionAction : ReactionAction(CommonBundle.message("button.without.mnemonic.no"), AllIcons.Ide.DislikeDimmed,
+                                                      AllIcons.Ide.Dislike, AllIcons.Ide.DislikeSelected) {
   override fun isSelected(e: AnActionEvent): Boolean {
     return getReactionStateChecker(e)?.checkState(ReactionChecker.State.Disliked) == true
   }
@@ -80,7 +80,7 @@ private class DislikeReactionAction : ReactionAction(CommonBundle.message("butto
   }
 }
 
-private abstract class ReactionAction(
+internal abstract class ReactionAction(
   text: @NlsActions.ActionText String,
   val icon: Icon,
   val hoveredIcon: Icon,