diff --git a/build.gradle b/build.gradle
index b838c23..e0f799c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -27,7 +27,7 @@ sourceSets {
 dependencies {
     implementation project(":common")
     implementation project(":mockjava")
-
+    implementation 'org.apache.commons:commons-lang3:3.0'
     implementation 'com.atlassian.commonmark:commonmark:0.17.0'
     implementation 'com.idealista:format-preserving-encryption:1.0.0'
     implementation 'com.squareup.okhttp3:okhttp:4.9.1'
@@ -35,9 +35,9 @@ dependencies {
     implementation 'org.apache.commons:commons-math3:3.6.1'
     implementation 'org.codehaus.groovy:groovy-all:3.0.8'
     implementation 'org.jsoup:jsoup:1.14.2'
-
+    implementation 'org.apache.httpcomponents:httpclient:4.5.13'
     implementation fileTree(dir: 'lib', include: '*.jar')
-
+    implementation 'io.grpc:grpc-all:1.41.0'
     testImplementation 'junit:junit:4.13.2'
 }
 
diff --git a/src/main/java/org/bdware/sc/ContractProcess.java b/src/main/java/org/bdware/sc/ContractProcess.java
index 3546893..38eda38 100644
--- a/src/main/java/org/bdware/sc/ContractProcess.java
+++ b/src/main/java/org/bdware/sc/ContractProcess.java
@@ -5,7 +5,6 @@ import com.google.gson.JsonPrimitive;
 import com.google.gson.JsonSyntaxException;
 import com.google.gson.reflect.TypeToken;
 import com.google.gson.stream.MalformedJsonException;
-import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.Level;
 import org.apache.logging.log4j.core.config.Configurator;
 import org.bdware.analysis.BasicBlock;
@@ -472,7 +471,7 @@ public class ContractProcess {
                 List<FunctionNode> functionNodes = cn.getFunctions();
                 LOGGER.debug(
                         "functionNodes jointInfo: "
-                                + StringUtils.join(
+                                + JsonUtil.toPrettyJson(
                                 functionNodes.stream()
                                         .map(
                                                 x -> {
@@ -481,8 +480,7 @@ public class ContractProcess {
                                                             ? "null"
                                                             : joinInfo;
                                                 })
-                                        .toArray(),
-                                " "));
+                                        .toArray()));
                 injectHandlers();
 
                 this.contract.setYjsType(cn.getYjsType());