From 77efa286a4d35f74ea0bfa2ac9399de6744fc64a Mon Sep 17 00:00:00 2001
From: Ruslan Cheremin <ruslan.cheremin@jetbrains.com>
Date: Sat, 29 Aug 2026 15:29:16 +0200
Subject: [PATCH] IJPL-248653: add VirtualFile.isValid check

(cherry picked from commit 8004a7ddff7dfdca192ba4bec6a725fcaa77404a)

IJ-CR-220885

GitOrigin-RevId: 67214651519bcb98832b0f51807872d8584911c8
---
 .../codeInsight/daemon/impl/EssentialHighlightingRestarter.kt    | 1 +
 1 file changed, 1 insertion(+)

diff --git a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
index 0a8efce2e41d..eaff8cab3d0d 100644
--- a/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
+++ b/platform/lang-impl/src/com/intellij/codeInsight/daemon/impl/EssentialHighlightingRestarter.kt
@@ -66,6 +66,7 @@ private suspend fun requestRestartToCompleteEssentialHighlighting(project: Proje
   val hasFilesWithEssentialHighlightingConfigured = openFiles
     .any { file ->
       readAction {
+        if (!file.isValid) return@readAction false
         val psiFile = psiFileManager.findFile(file) ?: return@readAction false
         highlightingSettingsPerFile.getHighlightingSettingForRoot(psiFile) == FileHighlightingSetting.ESSENTIAL
       }