diff --git a/riskified-sample/src/main/resources/riskified_sdk.properties b/riskified-sample/src/main/resources/riskified_sdk.properties
new file mode 100644
index 0000000..3df05e5
--- /dev/null
+++ b/riskified-sample/src/main/resources/riskified_sdk.properties
@@ -0,0 +1,22 @@
+# Your shop domain as registered to Riskified
+shopUrl=
+
+# Your authentication token string
+authKey=
+
+# SANDBOX / PRODUCTION
+environment=
+
+# NONE / IGNORE_MISSING / ALL
+validation=
+
+# only applicable for PSD2 merchants, please consult with your technical contact at Riskified
+#false / true 
+enable_old_advise_response=
+
+# Proxy configuration
+#proxyUrl=<proxy_url>
+#proxyPort=<proxy_port>
+#proxyUsername=<proxy_username>
+#proxyPassword=<proxy_password>
+
diff --git a/riskified-sdk/src/main/java/com/riskified/models/Address.java b/riskified-sdk/src/main/java/com/riskified/models/Address.java
index ed7e0ad..d365078 100644
--- a/riskified-sdk/src/main/java/com/riskified/models/Address.java
+++ b/riskified-sdk/src/main/java/com/riskified/models/Address.java
@@ -29,6 +29,9 @@ public Address(String firstName, String lastName, String address1, String city,
         this.address1 = address1;
     }
 
+    public Address() {
+    }
+
     public void validate(Validation validationType) throws FieldBadFormatException {
         if (validationType == Validation.ALL) {
             Validate.notNullOrEmpty(this, this.firstName, "First Name");
diff --git a/riskified-sdk/src/main/java/com/riskified/models/CancelOrder.java b/riskified-sdk/src/main/java/com/riskified/models/CancelOrder.java
index 59ea16b..98438fb 100644
--- a/riskified-sdk/src/main/java/com/riskified/models/CancelOrder.java
+++ b/riskified-sdk/src/main/java/com/riskified/models/CancelOrder.java
@@ -22,6 +22,9 @@ public void validate(Validation validationType)
         }
     }
 
+    public CancelOrder() {
+    }
+
     public String getId() {
         return id;
     }
diff --git a/riskified-sdk/src/main/java/com/riskified/models/FulfillmentOrder.java b/riskified-sdk/src/main/java/com/riskified/models/FulfillmentOrder.java
index 81c354e..e7ecce8 100644
--- a/riskified-sdk/src/main/java/com/riskified/models/FulfillmentOrder.java
+++ b/riskified-sdk/src/main/java/com/riskified/models/FulfillmentOrder.java
@@ -9,6 +9,8 @@ public class FulfillmentOrder implements IValidated {
     private String id;
     private List<FulfillmentDetails> fulfillments;
 
+    public FulfillmentOrder() {
+    }
 
     public FulfillmentOrder(String id, List<FulfillmentDetails> fulfillments) {
         this.id = id;
diff --git a/riskified-sdk/src/main/java/com/riskified/models/LineItem.java b/riskified-sdk/src/main/java/com/riskified/models/LineItem.java
index 7f55312..346483e 100644
--- a/riskified-sdk/src/main/java/com/riskified/models/LineItem.java
+++ b/riskified-sdk/src/main/java/com/riskified/models/LineItem.java
@@ -37,6 +37,9 @@ public class LineItem implements IValidated {
     private String color;
     private RegistryType registryType;
     private Policy policy;
+    
+    public LineItem() {
+    }
 
 
     public LineItem(double price, int quantity, String title) {
diff --git a/riskified-sdk/src/main/resources/riskified_sdk.properties b/riskified-sdk/src/main/resources/riskified_sdk.properties
index 4e66a66..71b39ad 100644
--- a/riskified-sdk/src/main/resources/riskified_sdk.properties
+++ b/riskified-sdk/src/main/resources/riskified_sdk.properties
@@ -1,21 +1,22 @@
 # Your shop domain as registered to Riskified
-shopUrl=
+shopUrl=roomstogo.com
 
 # Your authentication token string
-authKey=
+authKey=xxxx
 
 # SANDBOX / PRODUCTION
-environment=
+environment=SANDBOX
 
 # NONE / IGNORE_MISSING / ALL
-validation=
+validation=ALL
 
 # only applicable for PSD2 merchants, please consult with your technical contact at Riskified
 #false / true 
-enable_old_advise_response=
+enable_old_advise_response=true
 
 # Proxy configuration
 #proxyUrl=<proxy_url>
 #proxyPort=<proxy_port>
 #proxyUsername=<proxy_username>
-#proxyPassword=<proxy_password>
\ No newline at end of file
+#proxyPassword=<proxy_password>
+