add AtomicNullableLazyValue.createValue(Factory)

platform/util/src/com/intellij/openapi/util/AtomicNullableLazyValue.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2000-2014 JetBrains s.r.o.
+ * Copyright 2000-2017 JetBrains s.r.o.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,6 +16,9 @@
 
 package com.intellij.openapi.util;
 
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
 /**
  * @author peter
  */
@@ -46,4 +49,16 @@ public abstract class AtomicNullableLazyValue<T> extends NullableLazyValue<T> {
     }
     return value;
   }
+
+  @SuppressWarnings("MethodOverridesStaticMethodOfSuperclass")
+  @NotNull
+  public static <T> AtomicNullableLazyValue<T> createValue(@NotNull final Factory<T> value) {
+    return new AtomicNullableLazyValue<T>() {
+      @Nullable
+      @Override
+      protected T compute() {
+        return value.create();
+      }
+    };
+  }
 }