Sonar suggestions - fixes to potential null pointer dereferences

Change-Id: I4e350a9d72a9322971d5d4f831f1bdf167986b87
diff --git a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
index 47c369c..41d54c2 100644
--- a/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
+++ b/apps/pce/app/src/main/java/org/onosproject/pce/pceservice/PceManager.java
@@ -610,10 +610,7 @@
             return false;
         }
 
-        DisjointPath path = null;
-        if (!paths.isEmpty()) {
-            path = paths.iterator().next();
-        }
+        DisjointPath path = paths.iterator().next();
 
         Builder annotationBuilder = DefaultAnnotations.builder();
         double bw = 0;