From 6baa472567a13c9ce2d7ef99e7d5722e99b1cdb5 Mon Sep 17 00:00:00 2001
From: Luck <git@lucko.me>
Date: Fri, 15 Jun 2018 19:07:24 +0100
Subject: [PATCH] Fix context cache invalidation

---
 .../me/lucko/luckperms/common/buffers/ExpiringCache.java     | 4 ++++
 .../me/lucko/luckperms/common/contexts/ContextManager.java   | 5 ++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/common/src/main/java/me/lucko/luckperms/common/buffers/ExpiringCache.java b/common/src/main/java/me/lucko/luckperms/common/buffers/ExpiringCache.java
index c2b9bd0ac..751fe0e0d 100644
--- a/common/src/main/java/me/lucko/luckperms/common/buffers/ExpiringCache.java
+++ b/common/src/main/java/me/lucko/luckperms/common/buffers/ExpiringCache.java
@@ -76,5 +76,9 @@ public abstract class ExpiringCache<T> implements Supplier<T> {
         }
         return this.value;
     }
+
+    public void invalidate() {
+        this.expirationNanos = 0;
+    }
 }
 
diff --git a/common/src/main/java/me/lucko/luckperms/common/contexts/ContextManager.java b/common/src/main/java/me/lucko/luckperms/common/contexts/ContextManager.java
index d0d3dc7ef..26f2b7655 100644
--- a/common/src/main/java/me/lucko/luckperms/common/contexts/ContextManager.java
+++ b/common/src/main/java/me/lucko/luckperms/common/contexts/ContextManager.java
@@ -233,7 +233,10 @@ public abstract class ContextManager<T> {
             throw new NullPointerException("subject");
         }
 
-        this.subjectCaches.invalidate(subject);
+        ContextsCache<T> cache = this.subjectCaches.getIfPresent(subject);
+        if (cache != null) {
+            cache.invalidate();
+        }
     }
 
     Contexts calculate(T subject) {