[maven] IDEA-381950 normalize tracked file paths in auto-import

A fix to support Windows paths. Test `MavenProjectsManagerAutoImportTest.testUpdatingProjectsWhenAbsentModuleFileAppears`

GitOrigin-RevId: d22dcb2a4cddb6b6612d4e59584585e0f81a5c27

platform/external-system-impl/src/com/intellij/openapi/externalSystem/autoimport/ProjectSettingsTracker.kt

@@ -28,6 +28,7 @@ import com.intellij.openapi.observable.operation.core.whenOperationStarted
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.SimpleModificationTracker
 import com.intellij.openapi.util.io.FileUtil
+import com.intellij.openapi.util.io.FileUtilRt.toSystemIndependentName
 import com.intellij.openapi.vfs.LocalFileSystem
 import com.intellij.openapi.vfs.VirtualFile
 import kotlinx.serialization.Serializable
@@ -358,7 +359,7 @@ class ProjectSettingsTracker(
 
     private fun getOrCollectSettingsFiles(): Set<String> {
       return settingsFilesCache.getOrCreateValueBlocking(modificationTracker.modificationCount) {
-        projectAware.settingsFiles
+        projectAware.settingsFiles.map { toSystemIndependentName(it) }.toSet()
       }
     }
 

plugins/maven/src/main/java/org/jetbrains/idea/maven/project/auto/reload/MavenProjectAware.kt

@@ -12,6 +12,7 @@ import com.intellij.openapi.fileEditor.FileDocumentManager
 import com.intellij.openapi.observable.properties.AtomicBooleanProperty
 import com.intellij.openapi.progress.ProgressManager
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.io.FileUtilRt.toSystemIndependentName
 import com.intellij.openapi.vfs.VirtualFile
 import org.jetbrains.annotations.ApiStatus
 import org.jetbrains.idea.maven.buildtool.MavenSyncSpec
@@ -87,7 +88,7 @@ class MavenProjectAware(
       result.add(rootDirectory + "/" + MavenConstants.MAVEN_CONFIG_RELATIVE_PATH)
       result.add(rootDirectory + "/" + MavenConstants.MAVEN_WRAPPER_RELATIVE_PATH)
     }
-    return result
+    return result.map { toSystemIndependentName(it) }.toSet()
   }
 
   init {