From 1cabe6b3918869471b82f889872d6712cd873058 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Mon, 24 Oct 2016 17:49:36 +0200
Subject: [PATCH] TypeMigrationLabeler invokeLater: be prepared to possible PSI
 invalidations

---
 .../refactoring/typeMigration/TypeMigrationLabeler.java     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationLabeler.java b/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationLabeler.java
index 0ea58844270f..2b98a50a1c17 100644
--- a/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationLabeler.java
+++ b/java/java-impl/src/com/intellij/refactoring/typeMigration/TypeMigrationLabeler.java
@@ -342,7 +342,11 @@ public class TypeMigrationLabeler {
         if (usageInfo instanceof OverriddenUsageInfo) {
           final String migrationName = ((OverriddenUsageInfo)usageInfo).getMigrateMethodName();
           if (migrationName != null) {
-            ApplicationManager.getApplication().invokeLater(() -> new RenameProcessor(project, element, migrationName, false, false).run());
+            ApplicationManager.getApplication().invokeLater(() -> {
+              if (element.isValid()) {
+                new RenameProcessor(project, element, migrationName, false, false).run();
+              }
+            });
           }
         }
       }