Guard against no issues being fixed in a version
diff --git a/src/main/java/org/apache/sling/tooling/lc/jira/IssueFinder.java b/src/main/java/org/apache/sling/tooling/lc/jira/IssueFinder.java
index 69005b9..d7bcedd 100644
--- a/src/main/java/org/apache/sling/tooling/lc/jira/IssueFinder.java
+++ b/src/main/java/org/apache/sling/tooling/lc/jira/IssueFinder.java
@@ -44,6 +44,10 @@
     
     public List<Issue> findIssues(List<String> issueKeys) throws IOException{
         
+        if ( issueKeys.isEmpty() ) {
+            return Collections.emptyList();
+        }
+        
         HttpClient client = new DefaultHttpClient();
         
         HttpGet get;