From 20167a209b2012d5b7f0ca1605f1363aab4130c4 Mon Sep 17 00:00:00 2001
From: Alex Dukhno <5074607+alex-dukhno@users.noreply.github.com>
Date: Wed, 23 Dec 2020 14:11:14 +0200
Subject: [PATCH] catch exception when method cant be make accessible (#17984)

---
 .../com/hazelcast/util/OperatingSystemMXBeanSupport.java  | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/hazelcast/src/main/java/com/hazelcast/util/OperatingSystemMXBeanSupport.java b/hazelcast/src/main/java/com/hazelcast/util/OperatingSystemMXBeanSupport.java
index 8d0c15e98aaa..09f9b572e637 100644
--- a/hazelcast/src/main/java/com/hazelcast/util/OperatingSystemMXBeanSupport.java
+++ b/hazelcast/src/main/java/com/hazelcast/util/OperatingSystemMXBeanSupport.java
@@ -68,8 +68,12 @@ public static long readLongAttribute(String attributeName, long defaultValue) {
             OperatingSystemMXBean systemMXBean = OPERATING_SYSTEM_MX_BEAN;
             Method method = systemMXBean.getClass().getMethod(methodName);
 
-            // the method is public in Java 9
-            method.setAccessible(true);
+            try {
+                // the method is public in Java 9
+                method.setAccessible(true);
+            } catch (Exception e) {
+                return defaultValue;
+            }
 
             Object value = method.invoke(systemMXBean);
             if (value == null) {