From b96411c40bddd046b347f112ef5167f26e04f0c5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20N=C3=BCcke?= <florian@nuecke.de>
Date: Wed, 23 Dec 2015 21:27:17 +0100
Subject: [PATCH] Don't create node / remove node in SimpleComponents when
 getComponentName returns null or an empty string. Merry Christmas, Vic.

---
 .../common/asm/template/StaticSimpleEnvironment.java | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/li/cil/oc/common/asm/template/StaticSimpleEnvironment.java b/src/main/java/li/cil/oc/common/asm/template/StaticSimpleEnvironment.java
index 0a5bb420a..8b43a5719 100644
--- a/src/main/java/li/cil/oc/common/asm/template/StaticSimpleEnvironment.java
+++ b/src/main/java/li/cil/oc/common/asm/template/StaticSimpleEnvironment.java
@@ -1,5 +1,6 @@
 package li.cil.oc.common.asm.template;
 
+import com.google.common.base.Strings;
 import li.cil.oc.api.Network;
 import li.cil.oc.api.network.Environment;
 import li.cil.oc.api.network.Node;
@@ -29,8 +30,15 @@ public final class StaticSimpleEnvironment {
         if (SideTracker.isClient()) {
             return null;
         }
-        if (!nodes.containsKey(self)) {
-            final String name = self.getComponentName();
+        final String name = self.getComponentName();
+        // If the name is null (or empty) this indicates we don't have a valid
+        // component right now, so if we have a node we kill it.
+        if (Strings.isNullOrEmpty(name)) {
+            final Node node = nodes.remove(self);
+            if (node != null) {
+                node.remove();
+            }
+        } else if (!nodes.containsKey(self)) {
             nodes.put(self, Network.
                     newNode(self, Visibility.Network).
                     withComponent(name).