diff --git a/core/src/main/java/hudson/model/ViewJob.java b/core/src/main/java/hudson/model/ViewJob.java
index 492d6eddd0e4..765843d58189 100644
--- a/core/src/main/java/hudson/model/ViewJob.java
+++ b/core/src/main/java/hudson/model/ViewJob.java
@@ -60,9 +60,9 @@ public abstract class ViewJob<JobT extends ViewJob<JobT,RunT>, RunT extends Run<
     /**
      * All {@link Run}s. Copy-on-write semantics.
      */
-    protected transient /*almost final*/ RunMap<RunT> runs = new RunMap<>();
+    protected transient volatile /*almost final*/ RunMap<RunT> runs = new RunMap<>(null, null);
 
-    private transient boolean notLoaded = true;
+    private transient volatile boolean notLoaded = true;
 
     /**
      * If the reloading of runs are in progress (in another thread,
diff --git a/core/src/main/java/jenkins/model/lazy/AbstractLazyLoadRunMap.java b/core/src/main/java/jenkins/model/lazy/AbstractLazyLoadRunMap.java
index 6ede80cf599e..3b8d2718c478 100644
--- a/core/src/main/java/jenkins/model/lazy/AbstractLazyLoadRunMap.java
+++ b/core/src/main/java/jenkins/model/lazy/AbstractLazyLoadRunMap.java
@@ -91,7 +91,7 @@ public abstract class AbstractLazyLoadRunMap<R> extends AbstractMap<Integer,R> i
     /**
      * Used in {@link #all()} to quickly determine if we've already loaded everything.
      */
-    private boolean fullyLoaded;
+    private volatile boolean fullyLoaded;
 
     /**
      * Currently visible index.