From 7431c27feee64641739947507683dfb871df3c77 Mon Sep 17 00:00:00 2001
From: Dmitry Avdeev <dmitry.avdeev@jetbrains.com>
Date: Mon, 5 Dec 2016 17:06:47 +0300
Subject: [PATCH] IDEA-164859 Throwable at
 com.intellij.openapi.application.impl.NoSwingUnderWriteAction.a

---
 .../daemon/impl/analysis/AddSchemaPrefixIntention.java       | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xml/impl/src/com/intellij/codeInsight/daemon/impl/analysis/AddSchemaPrefixIntention.java b/xml/impl/src/com/intellij/codeInsight/daemon/impl/analysis/AddSchemaPrefixIntention.java
index 0f44f2b29d5a..8f27e4433d13 100644
--- a/xml/impl/src/com/intellij/codeInsight/daemon/impl/analysis/AddSchemaPrefixIntention.java
+++ b/xml/impl/src/com/intellij/codeInsight/daemon/impl/analysis/AddSchemaPrefixIntention.java
@@ -57,6 +57,11 @@ public class AddSchemaPrefixIntention extends PsiElementBaseIntentionAction {
     return NAME;
   }
 
+  @Override
+  public boolean startInWriteAction() {
+    return false;
+  }
+
   @Override
   public void invoke(@NotNull Project project, Editor editor, @NotNull PsiElement element) throws IncorrectOperationException {
     final XmlAttribute xmlns = getXmlnsDeclaration(element);