From f297526c09e0587e5a99e63dbe49e4f63a059728 Mon Sep 17 00:00:00 2001
From: Peter van 't Hof <p.j.van_t_hof@lumc.nl>
Date: Tue, 17 May 2016 12:04:47 +0200
Subject: [PATCH] Fixed input error

---
 .../src/main/scala/nl/lumc/sasc/biopet/core/BiopetPipe.scala    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/biopet-core/src/main/scala/nl/lumc/sasc/biopet/core/BiopetPipe.scala b/biopet-core/src/main/scala/nl/lumc/sasc/biopet/core/BiopetPipe.scala
index 936096971..056c13242 100644
--- a/biopet-core/src/main/scala/nl/lumc/sasc/biopet/core/BiopetPipe.scala
+++ b/biopet-core/src/main/scala/nl/lumc/sasc/biopet/core/BiopetPipe.scala
@@ -27,7 +27,7 @@ import org.broadinstitute.gatk.utils.commandline.{ Input, Output }
  */
 class BiopetPipe(val commands: List[BiopetCommandLineFunction]) extends BiopetCommandLineFunction {
 
-  @Input
+  @Input(required = false)
   lazy val input: List[File] = try {
     commands.flatMap(_.inputs)
   } catch {
-- 
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