From 4f2933d3646af1bb7218b5592991a94b19447fb6 Mon Sep 17 00:00:00 2001
From: Jason Zaugg <jzaugg@gmail.com>
Date: Tue, 20 Feb 2018 18:50:22 +1000
Subject: [PATCH] Cache the hashCode of Configuration

I noticed this was showing up in profiles when SBT's task engine
was using Keys, etc (that contain Configurations) in HashMap's.

Let's cache it instead. I don't think there is a need to use a lazy
val for this, we can compute it eagerly.
---
 core/src/main/scala/sbt/librarymanagement/Configuration.scala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/src/main/scala/sbt/librarymanagement/Configuration.scala b/core/src/main/scala/sbt/librarymanagement/Configuration.scala
index 9f642efd6..2306efdda 100644
--- a/core/src/main/scala/sbt/librarymanagement/Configuration.scala
+++ b/core/src/main/scala/sbt/librarymanagement/Configuration.scala
@@ -31,7 +31,7 @@ final class Configuration private[sbt] (
         (this.transitive == x.transitive)
     case _ => false
   }
-  override def hashCode: Int = {
+  override val hashCode: Int = {
     37 * (37 * (37 * (37 * (37 * (37 * (17 + id.##) + name.##) + description.##) + isPublic.##) + extendsConfigs.##) + transitive.##)
   }
   override def toString: String = {