From 9401d47e797ac3ca85ec3fd20037521338b65331 Mon Sep 17 00:00:00 2001
From: Stu Hood <stuhood@twitter.com>
Date: Sun, 20 Sep 2015 08:42:10 -0700
Subject: [PATCH] Remove copyright from IOSpecification, and use a simpler
 Resource lookup.

---
 util/io/src/main/scala/sbt/IO.scala              | 7 +++----
 util/io/src/test/scala/sbt/IOSpecification.scala | 3 ---
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/util/io/src/main/scala/sbt/IO.scala b/util/io/src/main/scala/sbt/IO.scala
index 407cde6ce..50c6c6c65 100644
--- a/util/io/src/main/scala/sbt/IO.scala
+++ b/util/io/src/main/scala/sbt/IO.scala
@@ -44,10 +44,9 @@ object IO {
     if (codeSource ne null) {
       codeSource.getLocation
     } else {
-      // NB: this assumes that System-class-loaded classes are located in jars, and thus relies on
-      // uses forward-slash-separated paths and `urlAsFile`'s truncation to the containing jar file
-      val clsfile = s"${cl.getName.replace('.', '/')}.class"
-      Option(ClassLoader.getSystemClassLoader.getResource(clsfile))
+      // NB: This assumes that classes without code sources are System classes, and thus located in
+      // jars. It assumes that `urlAsFile` will truncate to the containing jar file.
+      Option(cl.getResource(cl.getSimpleName + ".class"))
         .flatMap {
           urlAsFile
         }.getOrElse {
diff --git a/util/io/src/test/scala/sbt/IOSpecification.scala b/util/io/src/test/scala/sbt/IOSpecification.scala
index ccffdc5c2..882f147c5 100644
--- a/util/io/src/test/scala/sbt/IOSpecification.scala
+++ b/util/io/src/test/scala/sbt/IOSpecification.scala
@@ -1,6 +1,3 @@
-/* sbt -- Simple Build Tool
- * Copyright 2008 Mark Harrah */
-
 package sbt
 
 import util.Try