diff --git a/launch/src/main/scala/xsbt/boot/ServerApplication.scala b/launch/src/main/scala/xsbt/boot/ServerApplication.scala
index 343b37185..b1d90fe38 100644
--- a/launch/src/main/scala/xsbt/boot/ServerApplication.scala
+++ b/launch/src/main/scala/xsbt/boot/ServerApplication.scala
@@ -101,6 +101,7 @@ class StreamDumper(in: java.io.BufferedReader, out: java.io.PrintStream) extends
       case null => ()
       case line =>
         out.println(line)
+        out.flush()
         read()
     }
     read()
@@ -112,7 +113,7 @@ class StreamDumper(in: java.io.BufferedReader, out: java.io.PrintStream) extends
     // just wait a couple seconds to read more stuff if there is
     // any stuff.
     if (waitForErrors) {
-      endTime.set(System.currentTimeMillis + 2000)
+      endTime.set(System.currentTimeMillis + 5000)
       // at this point we'd rather the dumper thread run
       // before we check whether to sleep
       Thread.`yield`()
@@ -132,7 +133,8 @@ object ServerLauncher {
       case None    => throw new RuntimeException("Logic Failure:  Attempting to start a server that isn't configured to be a server.  Please report a bug.")
     }
     val launchConfig = java.io.File.createTempFile("sbtlaunch", "config")
-    launchConfig.deleteOnExit()
+    if (System.getenv("SBT_SERVER_SAVE_TEMPS") eq null)
+      launchConfig.deleteOnExit()
     LaunchConfiguration.save(config, launchConfig)
     val jvmArgs: List[String] = serverConfig.jvmArgs map readLines match {
       case Some(args) => args
diff --git a/project/Sbt.scala b/project/Sbt.scala
index 0af48a1d2..48e3dc07b 100644
--- a/project/Sbt.scala
+++ b/project/Sbt.scala
@@ -29,7 +29,7 @@ object Sbt extends Build {
     javacOptions in compile ++= Seq("-target", "6", "-source", "6", "-Xlint", "-Xlint:-serial"),
     incOptions := incOptions.value.withNameHashing(true),
     commands += Command.command("setupBuildScala211") { state =>
-      """set scalaVersion in ThisBuild := "2.11.0" """ ::
+      """set scalaVersion in ThisBuild := "2.11.1" """ ::
         "set Util.includeTestDependencies in ThisBuild := true" ::
         state
     },
@@ -48,12 +48,12 @@ object Sbt extends Build {
     // TODO - To some extent these should take args to figure out what to do.
     commands += Command.command("release-libs-211") { state =>
       "setupBuildScala211" ::
-      /// First test
-      lameAgregateTask("test") ::
-      // Note: You need the sbt-pgp plugin installed to release.
-      lameAgregateTask("publishSigned") ::
-      // Now restore the defaults.
-      "reload" :: state
+        /// First test
+        lameAgregateTask("test") ::
+        // Note: You need the sbt-pgp plugin installed to release.
+        lameAgregateTask("publishSigned") ::
+        // Now restore the defaults.
+        "reload" :: state
     },
     commands += Command.command("release-sbt-local") { state =>
       "publishLocal" ::
diff --git a/util/classpath/src/main/scala/sbt/classpath/ClassLoaderCache.scala b/util/classpath/src/main/scala/sbt/classpath/ClassLoaderCache.scala
index 3886fe4d5..2e489eb6f 100644
--- a/util/classpath/src/main/scala/sbt/classpath/ClassLoaderCache.scala
+++ b/util/classpath/src/main/scala/sbt/classpath/ClassLoaderCache.scala
@@ -5,6 +5,7 @@ import java.io.File
 import java.net.URLClassLoader
 import java.util.HashMap
 
+// Hack for testing only
 private[sbt] final class ClassLoaderCache(val commonParent: ClassLoader) {
   private[this] val delegate = new HashMap[List[File], Reference[CachedClassLoader]]
 
@@ -25,9 +26,9 @@ private[sbt] final class ClassLoaderCache(val commonParent: ClassLoader) {
       get(files, stamps, existingRef.get)
 
   private[this] def get(files: List[File], stamps: List[Long], existing: CachedClassLoader): ClassLoader =
-    if (existing == null || stamps != existing.timestamps)
+    if (existing == null || stamps != existing.timestamps) {
       newEntry(files, stamps)
-    else
+    } else
       existing.loader
 
   private[this] def newEntry(files: List[File], stamps: List[Long]): ClassLoader =
diff --git a/util/classpath/src/test/scala/sbt/classpath/ConcurrentCache.scala b/util/classpath/src/test/scala/sbt/classpath/ConcurrentCache.scala
deleted file mode 100644
index ab2fa9ac9..000000000
--- a/util/classpath/src/test/scala/sbt/classpath/ConcurrentCache.scala
+++ /dev/null
@@ -1,30 +0,0 @@
-package sbt
-package classpath
-
-import org.scalacheck._
-import Prop._
-import java.io.File
-
-object ConcurrentCache extends Properties("ClassLoaderCache concurrent access") {
-  implicit lazy val concurrentArb: Arbitrary[Int] = Arbitrary(Gen.choose(1, 1000))
-  implicit lazy val filenameArb: Arbitrary[String] = Arbitrary(Gen.alphaStr)
-
-  property("Same class loader for same classpaths concurrently processed") = forAll { (names: List[String], concurrent: Int) =>
-    withcp(names.distinct) { files =>
-      val cache = new ClassLoaderCache(null)
-      val loaders = (1 to concurrent).par.map(_ => cache(files)).toList
-      sameClassLoader(loaders)
-    }
-  }
-
-  private[this] def withcp[T](names: List[String])(f: List[File] => T): T = IO.withTemporaryDirectory { tmp =>
-    val files = names.map { name =>
-      val file = new File(tmp, name)
-      IO.touch(file)
-      file
-    }
-    f(files)
-  }
-  private[this] def sameClassLoader(loaders: Seq[ClassLoader]): Boolean = loaders.size < 2 ||
-    loaders.sliding(2).forall { case Seq(x, y) => x == y }
-}
\ No newline at end of file