From d025cfbd4af49af92e2a741d31e90655b707b3de Mon Sep 17 00:00:00 2001
From: Jesse Glick <jglick@cloudbees.com>
Date: Mon, 4 Aug 2014 15:39:49 -0400
Subject: [PATCH] Null safety.

---
 .../main/java/hudson/diagnosis/NullIdDescriptorMonitor.java    | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/src/main/java/hudson/diagnosis/NullIdDescriptorMonitor.java b/core/src/main/java/hudson/diagnosis/NullIdDescriptorMonitor.java
index 8892fb1f2a..3182ddc954 100644
--- a/core/src/main/java/hudson/diagnosis/NullIdDescriptorMonitor.java
+++ b/core/src/main/java/hudson/diagnosis/NullIdDescriptorMonitor.java
@@ -62,6 +62,9 @@ public class NullIdDescriptorMonitor extends AdministrativeMonitor {
 
     private void verify() {
         Jenkins h = Jenkins.getInstance();
+        if (h == null) {
+            return;
+        }
         for (Descriptor d : h.getExtensionList(Descriptor.class)) {
             PluginWrapper p = h.getPluginManager().whichPlugin(d.getClass());
             String id;
-- 
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