diff --git a/build.gradle b/build.gradle
index a3ac1a4..bf207b0 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,15 +25,14 @@ sourceCompatibility = 1.8
 
 dependencies {
     api project(":gmhelper")
-
     api 'berkeleydb:je:3.2.76'
     api 'com.fifesoft:rsyntaxtextarea:3.1.3'
     api 'commons-io:commons-io:2.11.0'
     api 'io.netty:netty-all:4.1.63.Final'
     api 'org.antlr:antlr4:4.9.2'
     api 'commons-codec:commons-codec:1.5'
-    api 'org.apache.logging.log4j:log4j-core:2.17.0'
-    api 'org.apache.logging.log4j:log4j-api:2.17.0'
+    api 'org.apache.logging.log4j:log4j-core:2.17.2'
+    api 'org.apache.logging.log4j:log4j-api:2.17.2'
     //api 'org.apache.velocity:velocity-engine-core:2.3'
     api 'org.rocksdb:rocksdbjni:6.22.1'
 
diff --git a/src/main/base/org/bdware/sc/JSEngine.java b/src/main/base/org/bdware/sc/JSEngine.java
index 22196d8..5285335 100644
--- a/src/main/base/org/bdware/sc/JSEngine.java
+++ b/src/main/base/org/bdware/sc/JSEngine.java
@@ -21,4 +21,5 @@ public abstract class JSEngine implements ScriptEngine {
      */
     public abstract ContractResult loadContract(
             Contract contract, ContractNode contractNode, boolean isInsnLim);
+
 }
diff --git a/src/main/base/org/bdware/sc/conn/ServiceServer.java b/src/main/base/org/bdware/sc/conn/ServiceServer.java
index 4d6b0c0..5b22c0e 100644
--- a/src/main/base/org/bdware/sc/conn/ServiceServer.java
+++ b/src/main/base/org/bdware/sc/conn/ServiceServer.java
@@ -55,11 +55,10 @@ public class ServiceServer extends Thread {
 
     public void run() {
         EventLoopGroup bossGroup = new NioEventLoopGroup(1);
-        EventLoopGroup workerGroup = new NioEventLoopGroup();
 
         ServerBootstrap b = new ServerBootstrap();
         b.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
-        b.group(bossGroup, workerGroup)
+        b.group(bossGroup)
                 .channel(NioServerSocketChannel.class)
                 .option(ChannelOption.SO_BACKLOG, 100)
                 .option(ChannelOption.SO_REUSEADDR, false)
diff --git a/src/main/base/org/bdware/sc/node/ContractManifest.java b/src/main/base/org/bdware/sc/node/ContractManifest.java
index c3d76fd..4138c79 100644
--- a/src/main/base/org/bdware/sc/node/ContractManifest.java
+++ b/src/main/base/org/bdware/sc/node/ContractManifest.java
@@ -1,5 +1,6 @@
 package org.bdware.sc.node;
 
+import com.google.gson.JsonElement;
 import org.bdware.sc.bean.ContractExecType;
 import org.bdware.sc.py.bean.PYPackage;
 
@@ -18,6 +19,7 @@ public class ContractManifest {
     private List<Permission> permissions;
     public boolean startAtUnpack;
     public String sourcePath;
+    public JsonElement createParam;
 
     public List<PYPackage> getPyDependences() {
         return pyDependences;