refactoring part 1

Former-commit-id: d4b4c5281665e73c7dee62bd3bd062c3fda26a74

Author: gosurya-oracle

pom.xml

@@ -14,11 +14,6 @@
     </properties>
 
     <dependencies>
-        <dependency>
-            <groupId>org.apache.httpcomponents</groupId>
-            <artifactId>httpclient</artifactId>
-            <version>4.5.6</version>
-        </dependency>
         <dependency>
             <groupId>org.apache.httpcomponents</groupId>
             <artifactId>fluent-hc</artifactId>
@@ -34,10 +29,5 @@
             <artifactId>picocli</artifactId>
             <version>3.8.0</version>
         </dependency>
-        <dependency>
-            <groupId>org.hibernate.validator</groupId>
-            <artifactId>hibernate-validator</artifactId>
-            <version>6.0.13.Final</version>
-        </dependency>
     </dependencies>
 </project>

src/main/java/com/oracle/weblogicx/imagebuilder/builder/api/meta/MetaDataResolver.java

@@ -1,3 +1,5 @@
+/* Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. */
+
 package com.oracle.weblogicx.imagebuilder.builder.api.meta;
 
 import java.util.Map;

src/main/java/com/oracle/weblogicx/imagebuilder/builder/api/model/CachePolicy.java

@@ -1,7 +1,10 @@
+/* Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. */
+
 package com.oracle.weblogicx.imagebuilder.builder.api.model;
 
+@SuppressWarnings("unused")
 public enum CachePolicy {
     first,
-    only,
+    always,
     never
 }

src/main/java/com/oracle/weblogicx/imagebuilder/builder/api/model/CommandResponse.java

@@ -1,9 +1,11 @@
+/* Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. */
+
 package com.oracle.weblogicx.imagebuilder.builder.api.model;
 
 public class CommandResponse {
 
-    int status;
-    String message;
+    private int status;
+    private String message;
 
     public CommandResponse(int status, String message) {
         this.status = status;
@@ -14,15 +16,8 @@ public int getStatus() {
         return status;
     }
 
-    public void setStatus(int status) {
-        this.status = status;
-    }
-
     public String getMessage() {
         return message;
     }
 
-    public void setMessage(String message) {
-        this.message = message;
-    }
 }

src/main/java/com/oracle/weblogicx/imagebuilder/builder/api/model/InstallerType.java

@@ -1,3 +1,5 @@
+/* Copyright (c) 2018 Oracle and/or its affiliates. All rights reserved. */
+
 package com.oracle.weblogicx.imagebuilder.builder.api.model;
 
 /**