From 3af55a53b5008ce502c3055256ea42dd30d3dd8b Mon Sep 17 00:00:00 2001
From: wusheng <wu.sheng@foxmail.com>
Date: Tue, 4 Jul 2017 23:28:00 +0800
Subject: [PATCH] Avoid a classNotFound exception when collect CPU metrics.

---
 .../org/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java   | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
index 781016ad7..8b61f596c 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/jvm/cpu/CPUProvider.java
@@ -15,8 +15,9 @@ public enum CPUProvider {
     CPUProvider() {
         int processorNum = ProcessorUtil.getNumberOfProcessors();
         try {
-            CPUProvider.class.getClassLoader().loadClass("com.sun.management.OperatingSystemMXBean");
-            this.cpuMetricAccessor = new SunCpuAccessor(processorNum);
+            this.cpuMetricAccessor =
+                (CPUMetricAccessor)CPUProvider.class.getClassLoader().loadClass("org.skywalking.apm.agent.core.jvm.cpu.SunCpuAccessor")
+                    .getConstructor(int.class).newInstance(processorNum);
         } catch (Exception e) {
             this.cpuMetricAccessor = new NoSupportedCPUAccessor(processorNum);
             ILog logger = LogManager.getLogger(CPUProvider.class);