Fixed an exception

mzmine · Dec 14, 2016 · 3b67e40 · 3b67e40
1 parent b4ed287
commit 3b67e40
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/main/java/io/github/mzmine/util/FileNameUtil.java b/src/main/java/io/github/mzmine/util/FileNameUtil.java
@@ -54,7 +54,11 @@ public class FileNameUtil {
 
     public static @Nonnull String findCommonSuffix(
             @Nonnull List<File> fileNames) {
-        if (fileNames.size() < 2) {
+
+    	if (fileNames.isEmpty()) 
+    		return "";
+
+        if (fileNames.size() == 1) {
             // Return file extension
             String ext = Files
                     .getFileExtension(fileNames.get(0).getAbsolutePath());