From 8a7cf07de5fc1d4689d668966d132befe29d07b9 Mon Sep 17 00:00:00 2001
From: Yossi Farjoun <farjoun@gmail.com>
Date: Sat, 18 Feb 2017 14:43:34 -0500
Subject: [PATCH] - parallel map in MergableMetric fails since merge is not
 synchronized.

---
 src/main/java/picard/analysis/MergeableMetricBase.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/picard/analysis/MergeableMetricBase.java b/src/main/java/picard/analysis/MergeableMetricBase.java
index c4ebb2954..d729f90b9 100644
--- a/src/main/java/picard/analysis/MergeableMetricBase.java
+++ b/src/main/java/picard/analysis/MergeableMetricBase.java
@@ -125,7 +125,7 @@ public boolean mergeIfCan(final MergeableMetricBase other) {
      * @param many a Collection of MergeableMetricBase
      */
     public MergeableMetricBase merge(final Collection<? extends MergeableMetricBase> many) {
-        many.parallelStream().forEach(this::merge);
+        many.stream().forEach(this::merge);
         calculateDerivedFields();
         return this;
     }