Allow to search marker classes in dumb mode (EA-67309)

idea/idea-analysis/src/org/jetbrains/kotlin/idea/versions/KotlinRuntimeLibraryCoreUtil.java

@@ -18,8 +18,10 @@ package org.jetbrains.kotlin.idea.versions;
 
 import com.google.common.collect.ImmutableList;
 import com.intellij.openapi.application.ApplicationManager;
+import com.intellij.openapi.project.DumbService;
 import com.intellij.openapi.project.Project;
 import com.intellij.openapi.util.Computable;
+import com.intellij.openapi.util.Ref;
 import com.intellij.psi.JavaPsiFacade;
 import com.intellij.psi.PsiClass;
 import com.intellij.psi.search.GlobalSearchScope;
@@ -39,13 +41,21 @@ public class KotlinRuntimeLibraryCoreUtil {
         return ApplicationManager.getApplication().runReadAction(new Computable<PsiClass>() {
             @Override
             public PsiClass compute() {
-                for (String className : CANDIDATE_CLASSES) {
-                    PsiClass psiClass = JavaPsiFacade.getInstance(project).findClass(className, scope);
-                    if (psiClass != null) {
-                        return psiClass;
+                final Ref<PsiClass> result = new Ref<PsiClass>();
+                DumbService.getInstance(project).withAlternativeResolveEnabled(new Runnable() {
+                    @Override
+                    public void run() {
+                        for (String className : CANDIDATE_CLASSES) {
+                            PsiClass psiClass = JavaPsiFacade.getInstance(project).findClass(className, scope);
+                            if (psiClass != null) {
+                                result.set(psiClass);
+                                return;
+                            }
+                        }
                     }
-                }
-                return null;
+                });
+
+                return result.get();
             }
         });
     }

idea/src/org/jetbrains/kotlin/idea/configuration/KotlinWithLibraryConfigurator.java

@@ -77,7 +77,7 @@ public abstract class KotlinWithLibraryConfigurator implements KotlinProjectConf
 
     @Override
     public void configure(@NotNull Project project) {
-        final String defaultPathToJar = getDefaultPathToJarFile(project);
+        String defaultPathToJar = getDefaultPathToJarFile(project);
         boolean showPathToJarPanel = needToChooseJarPath(project);
 
         List<Module> nonConfiguredModules =
@@ -103,19 +103,12 @@ public abstract class KotlinWithLibraryConfigurator implements KotlinProjectConf
             copyLibraryIntoPath = dialog.getCopyIntoPath();
         }
 
-        final List<Module> finalModulesToConfigure = modulesToConfigure;
-        final String finalCopyLibraryIntoPath = copyLibraryIntoPath;
+        List<Module> finalModulesToConfigure = modulesToConfigure;
+        String finalCopyLibraryIntoPath = copyLibraryIntoPath;
 
-        // The first root modification enters dumb mode, and we need to be able to perform isKotlinLibrary() checks
-        // after that, and those checks use findClass(). Therefore, we need to enable alternative resolve here.
-        DumbService.getInstance(project).withAlternativeResolveEnabled(new Runnable() {
-            @Override
-            public void run() {
-                for (Module module : finalModulesToConfigure) {
-                    configureModuleWithLibrary(module, defaultPathToJar, finalCopyLibraryIntoPath);
-                }
-            }
-        });
+        for (Module module : finalModulesToConfigure) {
+            configureModuleWithLibrary(module, defaultPathToJar, finalCopyLibraryIntoPath);
+        }
     }
 
     protected void configureModuleWithLibrary(

idea/src/org/jetbrains/kotlin/idea/configuration/ui/notifications/ConfigureKotlinNotification.java

@@ -50,8 +50,9 @@ public class ConfigureKotlinNotification extends Notification {
                     if (configurator == null) {
                         throw new AssertionError("Missed action: " + event.getDescription());
                     }
-                    configurator.configure(project);
                     notification.expire();
+
+                    configurator.configure(project);
                 }
             }
         });