diff --git a/rasp/jvm/JVMAgent/src/main/java/com/security/smithloader/SmithAgent.java b/rasp/jvm/JVMAgent/src/main/java/com/security/smithloader/SmithAgent.java
index 2e750d8dc..4f7b3d0d2 100644
--- a/rasp/jvm/JVMAgent/src/main/java/com/security/smithloader/SmithAgent.java
+++ b/rasp/jvm/JVMAgent/src/main/java/com/security/smithloader/SmithAgent.java
@@ -56,7 +56,15 @@ public static void PreProxy(Object MethodNameObj,int classID, int methodID, Obje
         if(SmithProberProxyObj != null) {
             String MethodName = (String)MethodNameObj;
             Class<?>[]  argType = new Class[]{int.class,int.class,Object[].class};
-            Reflection.invokeMethod(SmithProberProxyObj,MethodName,argType,classID,methodID,args);
+            try {
+                Reflection.invokeMethod(SmithProberProxyObj,MethodName,argType,classID,methodID,args);
+            } catch (Throwable e) {
+                if (checkRecursive != null && checkRecursive.get() == true) {
+                    checkRecursive.set(false);
+                }
+                throw e;
+            }
+            
         }
         if (checkRecursive != null && checkRecursive.get() == true) {
             checkRecursive.set(false);
@@ -254,6 +262,7 @@ private static class MyCallable implements Callable<String> {
         public String call() throws Exception {
              xLoaderLock.lock();
                 try {
+                    System.setProperty("smith.rasp", "");
                     if(SmithProberObj != null) {
                         String agent = System.getProperty("rasp.probe");
 
@@ -268,7 +277,7 @@ public String call() throws Exception {
                         SmithProberClazz = null;
                     }
     
-                    System.setProperty("smith.rasp", "");
+                    
                     if (!checkMemoryAvailable()) {
                         System.setProperty("smith.status",  "memory not enough");
                         SmithAgentLogger.logger.warning("checkMemory failed");
diff --git a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterDeserializer.java b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterDeserializer.java
index 12c68350d..e2117d927 100644
--- a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterDeserializer.java
+++ b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterDeserializer.java
@@ -31,18 +31,23 @@ private StackTraceElement[] convertStackTrace(String[] stackTrace) {
         if (stackTrace == null)
             return new StackTraceElement[0];
 
-        StackTraceElement[] result = new StackTraceElement[stackTrace.length];
-        for (int i = 0; i < stackTrace.length; i++) {
-            String[] parts = stackTrace[i].split(",");
-            if (parts.length != 4) {
-                continue;
+        try {
+            StackTraceElement[] result = new StackTraceElement[stackTrace.length];
+            for (int i = 0; i < stackTrace.length; i++) {
+                String[] parts = stackTrace[i].split(",");
+                if (parts.length != 4) {
+                    continue;
+                }
+                String className = parts[0].trim();
+                String methodName = parts[1].trim();
+                String fileName = parts[2].trim();
+                int lineNumber = Integer.parseInt(parts[3].trim());
+                result[i] = new StackTraceElement(className, methodName, fileName, lineNumber);
             }
-            String className = parts[0].trim();
-            String methodName = parts[1].trim();
-            String fileName = parts[2].trim();
-            int lineNumber = Integer.parseInt(parts[3].trim());
-            result[i] = new StackTraceElement(className, methodName, fileName, lineNumber);
+            return result;
+        } catch (Exception e) {
         }
-        return result;
+        
+        return new StackTraceElement[0];
     }
 }
\ No newline at end of file
diff --git a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterSerializer.java b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterSerializer.java
index 3555aaa91..6cc7546ff 100644
--- a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterSerializer.java
+++ b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/ClassFilterSerializer.java
@@ -32,14 +32,17 @@ public JsonElement serialize(ClassFilter src, Type typeOfSrc, JsonSerializationC
     private String[] convertStackTrace(StackTraceElement[] stackTrace) {
         if (stackTrace.length <= 2)
             return new String[0];
+        try {
+            StackTraceElement[] elements = Arrays.copyOfRange(stackTrace, 2, stackTrace.length);
+            String[] result = new String[elements.length];
 
-        StackTraceElement[] elements = Arrays.copyOfRange(stackTrace, 2, stackTrace.length);
-        String[] result = new String[elements.length];
+            for (int i = 0; i < elements.length; i++) {
+                result[i] = elements[i].toString();
+            }
 
-        for (int i = 0; i < elements.length; i++) {
-            result[i] = elements[i].toString();
+            return result;
+        } catch (Exception e) {
         }
-
-        return result;
+        return new String[0];
     }
 }
\ No newline at end of file
diff --git a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceDeserializer.java b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceDeserializer.java
index 7a01accf7..d753adc80 100644
--- a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceDeserializer.java
+++ b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceDeserializer.java
@@ -23,21 +23,26 @@ public Trace deserialize(JsonElement json, Type typeOfT, com.google.gson.JsonDes
     }
 
     private StackTraceElement[] convertStackTrace(String[] stackTrace) {
+        StackTraceElement[] ret = new StackTraceElement[0];
         if (stackTrace == null)
-            return new StackTraceElement[0];
+            return ret;
 
-        StackTraceElement[] result = new StackTraceElement[stackTrace.length];
-        for (int i = 0; i < stackTrace.length; i++) {
-            String[] parts = stackTrace[i].split(",");
-            if (parts.length != 4) {
-                continue;
+        try {
+            StackTraceElement[] result = new StackTraceElement[stackTrace.length];
+            for (int i = 0; i < stackTrace.length; i++) {
+                String[] parts = stackTrace[i].split(",");
+                if (parts.length != 4) {
+                    continue;
+                }
+                String className = parts[0].trim();
+                String methodName = parts[1].trim();
+                String fileName = parts[2].trim();
+                int lineNumber = Integer.parseInt(parts[3].trim());
+                result[i] = new StackTraceElement(className, methodName, fileName, lineNumber);
             }
-            String className = parts[0].trim();
-            String methodName = parts[1].trim();
-            String fileName = parts[2].trim();
-            int lineNumber = Integer.parseInt(parts[3].trim());
-            result[i] = new StackTraceElement(className, methodName, fileName, lineNumber);
+            return result;
+        } catch (Exception e) {
         }
-        return result;
+        return ret;
     }
 }
\ No newline at end of file
diff --git a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceSerializer.java b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceSerializer.java
index d033551cd..4204fd0ee 100644
--- a/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceSerializer.java
+++ b/rasp/jvm/JVMProbe/src/main/java/com/security/smith/client/message/TraceSerializer.java
@@ -25,30 +25,47 @@ public JsonElement serialize(Trace src, Type typeOfSrc, JsonSerializationContext
     }
 
     private String convertRet(Object value) {
-        return String.valueOf(value);
+        String ret = "";
+        if (value == null)
+            return ret;
+        try {
+            ret = String.valueOf(value);
+        } catch (Exception e) {
+        }
+        return ret;
     }
 
     private String[] convertArgs(Object[] value) {
+        String[] ret = new String[0];
         if (value == null)
-            return new String[0];
+            return ret;
         String[] result = new String[value.length];
-        for (int i = 0; i < value.length; i++) {
-            result[i] = String.valueOf(value[i]);
+        try {
+            for (int i = 0; i < value.length; i++) {
+                result[i] = String.valueOf(value[i]);
+            }
+        } catch (Exception e) {
         }
+        
         return result;
     }
 
    private String[] convertStackTrace(StackTraceElement[] stackTrace) {
+        String[] ret = new String[0];
         if (stackTrace == null || stackTrace.length <= 2)
-            return new String[0];
+            return ret;
 
-        StackTraceElement[] elements = Arrays.copyOfRange(stackTrace, 2, stackTrace.length);
-        String[] result = new String[elements.length];
+        try {
+            StackTraceElement[] elements = Arrays.copyOfRange(stackTrace, 2, stackTrace.length);
+            String[] result = new String[elements.length];
 
-        for (int i = 0; i < elements.length; i++) {
-            result[i] = elements[i].toString();
-        } 
+            for (int i = 0; i < elements.length; i++) {
+                result[i] = elements[i].toString();
+            } 
 
-        return result;
+            return result;
+        } catch (Exception e) {
+        }
+        return ret;
     }
 }
\ No newline at end of file