remove useless dependency
diff --git a/pom.xml b/pom.xml
index c5bd02c..504097f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,13 +30,9 @@
         <aspectj.version>1.8.0</aspectj.version>
         <slf4j.version>1.7.7</slf4j.version>
         <logback.version>1.1.2</logback.version>
-        <jackson.version>2.4.4</jackson.version>
-        <freemarker.version>2.3.20</freemarker.version>
-        <sitemesh.version>2.4.2</sitemesh.version>
         <commons-codec.version>1.10</commons-codec.version>
         <commons-exec.version>1.3</commons-exec.version>
         <gson.version>2.6.1</gson.version>
-        <javaee-web-api.version>7.0</javaee-web-api.version>
         <mesos.version>1.1.0</mesos.version>
         <fenzo.version>0.11.1</fenzo.version>
         <jersey.version>1.19</jersey.version>
@@ -174,31 +170,6 @@
                 </exclusions>
             </dependency>
             <dependency>
-                <groupId>com.fasterxml.jackson.core</groupId>
-                <artifactId>jackson-core</artifactId>
-                <version>${jackson.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>com.fasterxml.jackson.core</groupId>
-                <artifactId>jackson-databind</artifactId>
-                <version>${jackson.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>com.fasterxml.jackson.core</groupId>
-                <artifactId>jackson-annotations</artifactId>
-                <version>${jackson.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>org.freemarker</groupId>
-                <artifactId>freemarker</artifactId>
-                <version>${freemarker.version}</version>
-            </dependency>
-            <dependency>
-                <groupId>opensymphony</groupId>
-                <artifactId>sitemesh</artifactId>
-                <version>${sitemesh.version}</version>
-            </dependency>
-            <dependency>
                 <groupId>commons-codec</groupId>
                 <artifactId>commons-codec</artifactId>
                 <version>${commons-codec.version}</version>
@@ -219,12 +190,6 @@
                 <version>${fenzo.version}</version>
             </dependency>
             <dependency>
-                <groupId>javax</groupId>
-                <artifactId>javaee-web-api</artifactId>
-                <version>${javaee-web-api.version}</version>
-                <scope>provided</scope>
-            </dependency>
-            <dependency>
                 <groupId>com.google.code.gson</groupId>
                 <artifactId>gson</artifactId>
                 <version>${gson.version}</version>