Trivial protection for null value

git-svn-id: file:///humgen/gsa-scr1/gsa-engineering/svn_contents/trunk@1918 348d0f76-0448-11de-a6fe-93d51630548a
2009-10-27 21:52:52 +00:00 · 2009-10-27 21:52:52 +00:00 · 186a8dd698
parent be333da9c0
commit 186a8dd698
1 changed files with 3 additions and 0 deletions
--- a/java/src/org/broadinstitute/sting/gatk/walkers/fasta/FastaReferenceWalker.java
+++ b/java/src/org/broadinstitute/sting/gatk/walkers/fasta/FastaReferenceWalker.java
@ -33,6 +33,9 @@ public class FastaReferenceWalker extends RefWalker<Pair<GenomeLoc, String>, Gen
    }

 	public GenomeLoc reduce(Pair<GenomeLoc, String> value, GenomeLoc sum) {
+        if ( value == null )
+            return sum;
+
        // if there is no interval to the left, then this is the first one
        if ( sum == null ) {
            sum = value.first;