diff --git a/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java b/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
index 225a88c0f..f235f9439 100644
--- a/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
+++ b/core/src/main/java/com/taobao/arthas/core/util/StringUtils.java
@@ -12,7 +12,11 @@ import java.util.Set;
 import java.util.StringTokenizer;
 import java.util.TreeSet;
 
+import com.alibaba.arthas.deps.org.slf4j.Logger;
+import com.alibaba.arthas.deps.org.slf4j.LoggerFactory;
+
 public abstract class StringUtils {
+    private static final Logger logger = LoggerFactory.getLogger(StringUtils.class);
     private static final String AB = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
 
     /**
@@ -41,7 +45,10 @@ public abstract class StringUtils {
         try {
             return obj.toString();
         } catch (Throwable t) {
-            return "ERROR DATA!!! Method toString() throw exception. obj class: " + obj.getClass() + ", exception message: " + t.getMessage();
+            logger.error("objectToString error, obj class: {}", obj.getClass(), t);
+            return "ERROR DATA!!! Method toString() throw exception. obj class: " + obj.getClass()
+                    + ", exception class: " + t.getClass()
+                    + ", exception message: " + t.getMessage();
         }
     }
 
diff --git a/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java b/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
index 67dd70984..2c1429ca9 100644
--- a/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
+++ b/core/src/main/java/com/taobao/arthas/core/view/ObjectView.java
@@ -1,5 +1,7 @@
 package com.taobao.arthas.core.view;
 
+import com.alibaba.arthas.deps.org.slf4j.Logger;
+import com.alibaba.arthas.deps.org.slf4j.LoggerFactory;
 import com.alibaba.fastjson.JSON;
 import com.alibaba.fastjson.serializer.SerializerFeature;
 import com.taobao.arthas.core.GlobalOptions;
@@ -18,7 +20,7 @@ import static java.lang.String.format;
  * Created by vlinux on 15/5/20.
  */
 public class ObjectView implements View {
-
+    private static final Logger logger = LoggerFactory.getLogger(ObjectView.class);
     private final static int MAX_OBJECT_LENGTH = 10 * 1024 * 1024; // 10M
 
     private final Object object;
@@ -50,7 +52,9 @@ public class ObjectView implements View {
                     .append(", try to specify -M size_limit in your command, check the help command for more.");
             return buf.toString();
         } catch (Throwable t) {
-            return "ERROR DATA!!! exception message: " + t.getMessage();
+            logger.error("ObjectView draw error, object class: {}", object.getClass(), t);
+            return "ERROR DATA!!! object class: " + object.getClass() + ", exception class: " + t.getClass()
+                    + ", exception message: " + t.getMessage();
         }
     }
 
@@ -583,7 +587,7 @@ public class ObjectView implements View {
                 } else {
                     appendStringBuilder(buf, format("@%s[", className));
                     List<Field> fields = new ArrayList<Field>();
-                    Class objClass = obj.getClass();
+                    Class<?> objClass = obj.getClass();
                     if (GlobalOptions.printParentFields) {
                         // 当父类为null的时候说明到达了最上层的父类(Object类).
                         while (objClass != null) {