From 7554b6fc667954b37cc52feb3ccc23b663defdd2 Mon Sep 17 00:00:00 2001
From: AMedvedev <AMedvedev@gridgain.com>
Date: Thu, 24 May 2018 23:50:54 +0300
Subject: [PATCH] IGNITE-8612 Debugging NPE: add assert

---
 .../internal/processors/cache/GridCacheTtlManager.java      | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCacheTtlManager.java b/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCacheTtlManager.java
index d36485ab70a7f..5f5b98c068e4b 100644
--- a/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCacheTtlManager.java
+++ b/modules/core/src/main/java/org/apache/ignite/internal/processors/cache/GridCacheTtlManager.java
@@ -200,7 +200,11 @@ public boolean expire(int amount) {
                 }
             }
 
-            boolean more = cctx.offheap().expire(dhtCtx, expireC, amount);
+            final IgniteCacheOffheapManager offheapMgr = cctx.offheap();
+
+            assert (offheapMgr != null); // https://issues.apache.org/jira/browse/IGNITE-8612
+
+            boolean more = offheapMgr.expire(dhtCtx, expireC, amount);
 
             if (more)
                 return true;