/**
  * The names of the policies enabled for the back-end server.
  *
  * <p><b>NOTE:</b> This method appends the values to the existing list (if any). Use {@link
  * #setPolicyNames(java.util.Collection)} or {@link #withPolicyNames(java.util.Collection)} if you
  * want to override the existing values.
  *
  * <p>Returns a reference to this object so that method calls can be chained together.
  *
  * @param policyNames The names of the policies enabled for the back-end server.
  * @return A reference to this updated object so that method calls can be chained together.
  */
 public BackendServerDescription withPolicyNames(String... policyNames) {
   if (getPolicyNames() == null)
     setPolicyNames(new java.util.ArrayList<String>(policyNames.length));
   for (String value : policyNames) {
     getPolicyNames().add(value);
   }
   return this;
 }
 /**
  * The names of the policies enabled for the back-end server.
  *
  * <p><b>NOTE:</b> This method appends the values to the existing list (if any). Use {@link
  * #setPolicyNames(java.util.Collection)} or {@link #withPolicyNames(java.util.Collection)} if you
  * want to override the existing values.
  *
  * @param policyNames The names of the policies enabled for the back-end server.
  * @return Returns a reference to this object so that method calls can be chained together.
  */
 public BackendServerDescription withPolicyNames(String... policyNames) {
   if (this.policyNames == null) {
     setPolicyNames(new com.amazonaws.internal.SdkInternalList<String>(policyNames.length));
   }
   for (String ele : policyNames) {
     this.policyNames.add(ele);
   }
   return this;
 }
 /**
  * The names of the policies enabled for the back-end server.
  *
  * @param policyNames The names of the policies enabled for the back-end server.
  * @return Returns a reference to this object so that method calls can be chained together.
  */
 public BackendServerDescription withPolicyNames(java.util.Collection<String> policyNames) {
   setPolicyNames(policyNames);
   return this;
 }