diff -r 9046db64ca39 -r cddef3bde924 src/hotspot/os/aix/perfMemory_aix.cpp
--- a/src/hotspot/os/aix/perfMemory_aix.cpp	Wed Sep 11 14:16:27 2019 +0200
+++ b/src/hotspot/os/aix/perfMemory_aix.cpp	Wed Sep 11 14:16:30 2019 +0200
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2001, 2019, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2012, 2018 SAP SE. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
@@ -685,7 +685,7 @@
           if (statbuf.st_ctime > oldest_ctime) {
             char* user = strchr(dentry->d_name, '_') + 1;
 
-            if (oldest_user != NULL) FREE_C_HEAP_ARRAY(char, oldest_user);
+            FREE_C_HEAP_ARRAY(char, oldest_user);
             oldest_user = NEW_C_HEAP_ARRAY(char, strlen(user)+1, mtInternal);
 
             strcpy(oldest_user, user);