diff --git a/.classpath b/.classpath
index e461bea..94bdfe3 100644
--- a/.classpath
+++ b/.classpath
@@ -2,5 +2,8 @@
 <classpath>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
 	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="lib" path="jar/jackson-annotations-2.9.7.jar"/>
+	<classpathentry kind="lib" path="jar/jackson-core-2.9.7.jar"/>
+	<classpathentry kind="lib" path="jar/jackson-databind-2.9.7.jar"/>
 	<classpathentry kind="output" path="bin"/>
 </classpath>
diff --git a/jar/jackson-annotations-2.9.7.jar b/jar/jackson-annotations-2.9.7.jar
new file mode 100644
index 0000000..46f56b2
--- /dev/null
+++ b/jar/jackson-annotations-2.9.7.jar
Binary files differ
diff --git a/jar/jackson-core-2.9.7.jar b/jar/jackson-core-2.9.7.jar
new file mode 100644
index 0000000..fa46a7f
--- /dev/null
+++ b/jar/jackson-core-2.9.7.jar
Binary files differ
diff --git a/jar/jackson-databind-2.9.7.jar b/jar/jackson-databind-2.9.7.jar
new file mode 100644
index 0000000..76d50b4
--- /dev/null
+++ b/jar/jackson-databind-2.9.7.jar
Binary files differ
diff --git a/src/org/ntlab/radishforandroidstudio/framework/network/HttpAsyncConnection.java b/src/org/ntlab/radishforandroidstudio/framework/network/HttpAsyncConnection.java
index dc6ef40..fb1507a 100644
--- a/src/org/ntlab/radishforandroidstudio/framework/network/HttpAsyncConnection.java
+++ b/src/org/ntlab/radishforandroidstudio/framework/network/HttpAsyncConnection.java
@@ -16,7 +16,6 @@
 	private String queryParams = "";
 	private String pathParams = "";
 	private String formParams = "";
-//	private String code = "";
 	private int responseCode;
 
 	private String method;
@@ -30,10 +29,6 @@
 		return responseCode;
 	}
 
-//	public void setCode(String code) {
-//		this.code = code;
-//	}
-
 	public void doPost() {
 		setMethod("POST");
 	}
@@ -64,12 +59,9 @@
 					conn = (HttpURLConnection) new URL(baseUrl + pathParams + "?" + queryParams).openConnection();
 				}
 			}
-//			int length = baseUrl.length() + pathParams.length() + 1 + queryParams.length() * 8;
 			conn.setReadTimeout(10000 /* milliseconds */);
 			conn.setConnectTimeout(15000 /* milliseconds */);
 			conn.addRequestProperty("Content-type", "application/json");
-//			conn.addRequestProperty("Content-length",Integer.toString(length));
-//			conn.addRequestProperty("Authorization", "Bearer ");
 			// POST or GET or PUT or DELETE
 			conn.setRequestMethod(method);