From 1b0b0222815a284703f1e1a79e77f35b1992f7c4 Mon Sep 17 00:00:00 2001
From: Paul Campbell <pcampbell@kemitix.net>
Date: Sun, 21 Aug 2016 12:36:40 +0100
Subject: [PATCH] NodeItem.findChild(): rewrite stream filter

---
 src/main/java/net/kemitix/node/NodeItem.java | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/main/java/net/kemitix/node/NodeItem.java b/src/main/java/net/kemitix/node/NodeItem.java
index 3afbe8b..9e34a83 100644
--- a/src/main/java/net/kemitix/node/NodeItem.java
+++ b/src/main/java/net/kemitix/node/NodeItem.java
@@ -255,10 +255,10 @@ public class NodeItem<T> implements Node<T> {
         if (child == null) {
             throw new NullPointerException("child");
         }
-        return children.stream()
-                       .filter(n -> !n.isEmpty())
-                       .filter(n -> n.getData().get().equals(child))
-                       .findAny();
+        return children.stream().filter(node -> {
+            final Optional<T> d = node.getData();
+            return d.isPresent() && d.get().equals(child);
+        }).findAny();
     }
 
     @Override