T3-1026 Avoid NPE if relative path is used
diff --git a/src/main/java/org/purl/wf4ever/robundle/Bundles.java b/src/main/java/org/purl/wf4ever/robundle/Bundles.java
index 9eee172..7f2362a 100644
--- a/src/main/java/org/purl/wf4ever/robundle/Bundles.java
+++ b/src/main/java/org/purl/wf4ever/robundle/Bundles.java
@@ -186,6 +186,8 @@
                 // Do the fallback by temporary files below
             }
         }
+        
+        destination = destination.toAbsolutePath();
 
         String tmpName = destination.getFileName().toString();
         Path tmpDestination = Files.createTempFile(destination.getParent(),