Use aai-common 1.15.4 in traversal1.15.4

- use aai-common 1.15.4 that contains dependency updates
- remove jopt-simple dependency
- do not declare jnr-ffi as explicit dependency
  since it is only used transitively

Issue-ID: AAI-4095
Change-Id: I4260df8bd8f3da337d29d6ab82d29e4b75b57aa4
Signed-off-by: Fiete Ostkamp <Fiete.Ostkamp@telekom.de>

1 files changed, 2 insertions, 3 deletions

diff --git a/aai-traversal/src/main/java/org/onap/aai/transforms/MapTraverser.java b/aai-traversal/src/main/java/org/onap/aai/transforms/MapTraverser.java
index 24d5a83..77f2cd3 100644
--- a/aai-traversal/src/main/java/org/onap/aai/transforms/MapTraverser.java
+++ b/aai-traversal/src/main/java/org/onap/aai/transforms/MapTraverser.java
@@ -24,8 +24,6 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
-import joptsimple.internal.Objects;
-
 public class MapTraverser {
 
     private Converter converter;
@@ -36,7 +34,8 @@ public class MapTraverser {
 
     public Map<String, Object> convertKeys(Map<String, Object> map) {
 
-        Objects.ensureNotNull(map);
+        if (map == null)
+            throw new NullPointerException();
 
         Map<String, Object> modifiedMap = new HashMap<>();
         convertKeys(map, modifiedMap);