From ef88a2ac322956f4ff47c1dcfed8696020e1fd66 Mon Sep 17 00:00:00 2001
From: wusheng <wu.sheng@foxmail.com>
Date: Sun, 15 Oct 2017 08:50:51 +0800
Subject: [PATCH] Fix log issue when initializtion.

---
 .../skywalking/apm/agent/core/logging/SystemOutWriter.java    | 4 ++++
 .../main/java/org/skywalking/apm/agent/SkyWalkingAgent.java   | 4 +++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/logging/SystemOutWriter.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/logging/SystemOutWriter.java
index 814ea922d1..fce01021cd 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/logging/SystemOutWriter.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/logging/SystemOutWriter.java
@@ -34,4 +34,8 @@ public enum SystemOutWriter implements IWriter {
         PrintStream out = System.out;
         out.println(message);
     }
+
+    public PrintStream getStream(){
+        return System.out;
+    }
 }
diff --git a/apm-sniffer/apm-agent/src/main/java/org/skywalking/apm/agent/SkyWalkingAgent.java b/apm-sniffer/apm-agent/src/main/java/org/skywalking/apm/agent/SkyWalkingAgent.java
index c0a9bdad79..9bfe01be32 100644
--- a/apm-sniffer/apm-agent/src/main/java/org/skywalking/apm/agent/SkyWalkingAgent.java
+++ b/apm-sniffer/apm-agent/src/main/java/org/skywalking/apm/agent/SkyWalkingAgent.java
@@ -27,6 +27,7 @@ import net.bytebuddy.utility.JavaModule;
 import org.skywalking.apm.agent.core.boot.ServiceManager;
 import org.skywalking.apm.agent.core.conf.SnifferConfigInitializer;
 import org.skywalking.apm.agent.core.logging.EasyLogResolver;
+import org.skywalking.apm.agent.core.logging.SystemOutWriter;
 import org.skywalking.apm.agent.core.plugin.AbstractClassEnhancePluginDefine;
 import org.skywalking.apm.agent.core.plugin.EnhanceContext;
 import org.skywalking.apm.agent.core.plugin.PluginBootstrap;
@@ -66,7 +67,8 @@ public class SkyWalkingAgent {
 
             ServiceManager.INSTANCE.boot();
         } catch (Exception e) {
-            logger.error(e, "skywalking agent shutdown.");
+            SystemOutWriter.INSTANCE.write("skywalking agent is shutting down.");
+            e.printStackTrace(SystemOutWriter.INSTANCE.getStream());
             return;
         }
 
-- 
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