From d43b294badfbf57055810bab036b02134eaa1763 Mon Sep 17 00:00:00 2001
From: Vladimir Krivosheev <vladimir.krivosheev@jetbrains.com>
Date: Sat, 19 Aug 2023 17:16:21 +0300
Subject: [PATCH] IDEA-328027 preload PHM classes

GitOrigin-RevId: 05a3da4e5bcb8945820ba04bc888af29c7ba10d2
---
 .../src/com/intellij/idea/StartupUtil.kt      | 41 ++++++++++++++-----
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/platform/platform-impl/src/com/intellij/idea/StartupUtil.kt b/platform/platform-impl/src/com/intellij/idea/StartupUtil.kt
index ce9d911ddf61..cef5a3a5c50e 100644
--- a/platform/platform-impl/src/com/intellij/idea/StartupUtil.kt
+++ b/platform/platform-impl/src/com/intellij/idea/StartupUtil.kt
@@ -36,6 +36,8 @@ import com.intellij.ui.mac.initMacApplication
 import com.intellij.ui.mac.screenmenu.Menu
 import com.intellij.ui.svg.SvgCacheManager
 import com.intellij.util.*
+import com.intellij.util.containers.SLRUMap
+import com.intellij.util.io.*
 import com.intellij.util.lang.ZipFilePool
 import com.jetbrains.JBR
 import io.opentelemetry.sdk.OpenTelemetrySdkBuilder
@@ -143,13 +145,6 @@ fun CoroutineScope.startApplication(args: List<String>,
   if (!isHeadless) {
     showSplashIfNeeded(initUiDeferred = initLafJob, appInfoDeferred = appInfoDeferred, args = args)
 
-    launch {
-      lockSystemDirsJob.join()
-      span("SvgCache creation") {
-        SvgCacheManager.svgCache = SvgCacheManager.createSvgCacheManager()
-      }
-    }
-
     updateFrameClassAndWindowIconAndPreloadSystemFonts(initLafJob)
   }
 
@@ -184,6 +179,29 @@ fun CoroutineScope.startApplication(args: List<String>,
   // log initialization must happen only after locking the system directory
   val logDeferred = setupLogger(consoleLoggerJob, checkSystemDirJob)
 
+  launch {
+    // PHM wants logger
+    logDeferred.join()
+
+    span("PHM classes preloading", Dispatchers.IO) {
+      val classLoader = AppStarter::class.java.classLoader
+      Class.forName(PersistentMapBuilder::class.java.name, true, classLoader)
+      Class.forName(PersistentMapImpl::class.java.name, true, classLoader)
+      Class.forName(PersistentEnumerator::class.java.name, true, classLoader)
+      Class.forName(ResizeableMappedFile::class.java.name, true, classLoader)
+      Class.forName(PagedFileStorage::class.java.name, true, classLoader)
+      Class.forName(PageCacheUtils::class.java.name, true, classLoader)
+      Class.forName(PersistentHashMapValueStorage::class.java.name, true, classLoader)
+      Class.forName(SLRUMap::class.java.name, true, classLoader)
+    }
+
+    if (!isHeadless) {
+      span("SvgCache creation") {
+        SvgCacheManager.svgCache = SvgCacheManager.createSvgCacheManager()
+      }
+    }
+  }
+
   shellEnvDeferred = async {
     // EnvironmentUtil wants logger
     logDeferred.join()
@@ -301,7 +319,8 @@ fun isConfigImportNeeded(configPath: Path): Boolean {
  * This property is used to override the default target directory ([PathManager.getConfigPath]) when a custom way to read and write
  * configuration files is implemented.
  */
-@get:Internal @set:Internal
+@get:Internal
+@set:Internal
 var customTargetDirectoryToImportConfig: Path? = null
 
 @Suppress("SpellCheckingInspection")
@@ -682,8 +701,10 @@ private fun logPath(path: String): String {
     val real = configured.toRealPath()
     return if (configured == real) path else "${path} -> ${real}"
   }
-  catch (_: IOException) { }
-  catch (_: InvalidPathException) { }
+  catch (_: IOException) {
+  }
+  catch (_: InvalidPathException) {
+  }
   return "${path} -> ?"
 }