From 0df89408e2c547395e6d0def64512cdc5658b951 Mon Sep 17 00:00:00 2001
From: peter <peter@jetbrains.com>
Date: Thu, 12 Nov 2015 13:59:01 +0100
Subject: [PATCH] spare cpu cycles during indexing by not allocating tons of
 NonCancelableIndicator and not calculating their native hashCode

---
 .../openapi/progress/impl/CoreProgressManager.java     |  2 +-
 .../openapi/progress/impl/NonCancelableIndicator.java  | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/platform/core-impl/src/com/intellij/openapi/progress/impl/CoreProgressManager.java b/platform/core-impl/src/com/intellij/openapi/progress/impl/CoreProgressManager.java
index 1d01f6cb088d..10a4adda1573 100644
--- a/platform/core-impl/src/com/intellij/openapi/progress/impl/CoreProgressManager.java
+++ b/platform/core-impl/src/com/intellij/openapi/progress/impl/CoreProgressManager.java
@@ -167,7 +167,7 @@ public class CoreProgressManager extends ProgressManager implements Disposable {
 
   @Override
   public void executeNonCancelableSection(@NotNull Runnable runnable) {
-    executeProcessUnderProgress(runnable, new NonCancelableIndicator());
+    executeProcessUnderProgress(runnable, NonCancelableIndicator.INSTANCE);
   }
 
   @Override
diff --git a/platform/core-impl/src/com/intellij/openapi/progress/impl/NonCancelableIndicator.java b/platform/core-impl/src/com/intellij/openapi/progress/impl/NonCancelableIndicator.java
index 6917ffcf878d..e5bd58dbb891 100644
--- a/platform/core-impl/src/com/intellij/openapi/progress/impl/NonCancelableIndicator.java
+++ b/platform/core-impl/src/com/intellij/openapi/progress/impl/NonCancelableIndicator.java
@@ -23,6 +23,16 @@ import com.intellij.openapi.progress.StandardProgressIndicator;
 import org.jetbrains.annotations.NotNull;
 
 class NonCancelableIndicator implements NonCancelableSection, StandardProgressIndicator {
+  static final NonCancelableIndicator INSTANCE = new NonCancelableIndicator() {
+    @Override
+    public int hashCode() {
+      return 0;
+    }
+  };
+
+  protected NonCancelableIndicator() {
+  }
+
   @Override
   public void done() {
     ProgressIndicator currentIndicator = ProgressManager.getInstance().getProgressIndicator();