diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ProxyTicketValidator.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ProxyTicketValidator.java
index 289c402..7bdf0d7 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ProxyTicketValidator.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/Cas20ProxyTicketValidator.java
@@ -50,6 +50,7 @@ public class Cas20ProxyTicketValidator extends Cas20ServiceTicketValidator {
         return "proxyValidate";
     }
 
+    @Override
     protected void customParseResponse(final String response, final Assertion assertion)
             throws TicketValidationException {
         final List<String> proxies = parseProxiesFromResponse(response);
diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyReceivingTicketValidationFilter.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyReceivingTicketValidationFilter.java
index 76c9d7e..4fdb0e1 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyReceivingTicketValidationFilter.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyReceivingTicketValidationFilter.java
@@ -32,4 +32,6 @@ public class Cas30JsonProxyReceivingTicketValidationFilter extends Cas30ProxyRec
         this.defaultServiceTicketValidatorClass = Cas30JsonServiceTicketValidator.class;
         this.defaultProxyTicketValidatorClass = Cas30JsonProxyTicketValidator.class;
     }
+
+
 }
diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyTicketValidator.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyTicketValidator.java
index 43dcc89..48ff1f3 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyTicketValidator.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonProxyTicketValidator.java
@@ -1,15 +1,18 @@
 package org.jasig.cas.client.validation.json;
 
 import org.jasig.cas.client.validation.Assertion;
+import org.jasig.cas.client.validation.Cas30ProxyTicketValidator;
 import org.jasig.cas.client.validation.TicketValidationException;
 
+import java.util.List;
+
 /**
  * This is {@link Cas30JsonProxyTicketValidator} that attempts to parse the CAS validation response
  * as JSON. Very similar to {@link Cas30JsonServiceTicketValidator}, it also honors proxies as the name suggests.
  *
  * @author Misagh Moayyed
  */
-public class Cas30JsonProxyTicketValidator extends Cas30JsonServiceTicketValidator {
+public class Cas30JsonProxyTicketValidator extends Cas30ProxyTicketValidator {
     public Cas30JsonProxyTicketValidator(final String casServerUrlPrefix) {
         super(casServerUrlPrefix);
         getCustomParameters().put("format", "JSON");
@@ -17,6 +20,23 @@ public class Cas30JsonProxyTicketValidator extends Cas30JsonServiceTicketValidat
 
     @Override
     protected Assertion parseResponseFromServer(final String response) throws TicketValidationException {
-        return super.parseResponseFromServer(response);
+        try {
+            final TicketValidationJsonResponse json = new JsonValidationResponseParser().parse(response);
+            return json.getAssertion(getProxyGrantingTicketStorage(), getProxyRetriever());
+        } catch (final Exception e) {
+            logger.warn("Unable parse the JSON response");
+            return super.parseResponseFromServer(response);
+        }
+    }
+
+    @Override
+    protected List<String> parseProxiesFromResponse(final String response) {
+        try {
+            final TicketValidationJsonResponse json = new JsonValidationResponseParser().parse(response);
+            return json.getAuthenticationSuccess().getProxies();
+        } catch (final Exception e) {
+            logger.warn("Unable to locate proxies from the JSON response");
+            return super.parseProxiesFromResponse(response);
+        }
     }
 }
diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonServiceTicketValidator.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonServiceTicketValidator.java
index 4476296..f53a0be 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonServiceTicketValidator.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/Cas30JsonServiceTicketValidator.java
@@ -1,13 +1,10 @@
 package org.jasig.cas.client.validation.json;
 
-import org.jasig.cas.client.authentication.AttributePrincipal;
-import org.jasig.cas.client.authentication.AttributePrincipalImpl;
-import org.jasig.cas.client.util.CommonUtils;
 import org.jasig.cas.client.validation.Assertion;
-import org.jasig.cas.client.validation.AssertionImpl;
 import org.jasig.cas.client.validation.Cas30ServiceTicketValidator;
 import org.jasig.cas.client.validation.TicketValidationException;
 
+import java.util.Collections;
 import java.util.Map;
 
 /**
@@ -27,25 +24,17 @@ public class Cas30JsonServiceTicketValidator extends Cas30ServiceTicketValidator
 
     @Override
     protected Assertion parseResponseFromServer(final String response) throws TicketValidationException {
-        final TicketValidationJsonResponse json = new JsonValidationResponseParser().parse(response);
-        final String proxyGrantingTicketIou = json.getAuthenticationSuccess().getProxyGrantingTicket();
-        final String proxyGrantingTicket;
-        if (CommonUtils.isBlank(proxyGrantingTicketIou) || getProxyGrantingTicketStorage() == null) {
-            proxyGrantingTicket = null;
-        } else {
-            proxyGrantingTicket = getProxyGrantingTicketStorage().retrieve(proxyGrantingTicketIou);
+        try {
+            final TicketValidationJsonResponse json = new JsonValidationResponseParser().parse(response);
+            return json.getAssertion(getProxyGrantingTicketStorage(), getProxyRetriever());
+        } catch (final Exception e) {
+            logger.warn("Unable parse the JSON response");
+            return super.parseResponseFromServer(response);
         }
+    }
 
-        final Assertion assertion;
-        final Map<String, Object> attributes = json.getAuthenticationSuccess().getAttributes();
-        final String principal = json.getAuthenticationSuccess().getUser();
-        if (CommonUtils.isNotBlank(proxyGrantingTicket)) {
-            final AttributePrincipal attributePrincipal = new AttributePrincipalImpl(principal, attributes,
-                    proxyGrantingTicket, getProxyRetriever());
-            assertion = new AssertionImpl(attributePrincipal);
-        } else {
-            assertion = new AssertionImpl(new AttributePrincipalImpl(principal, attributes));
-        }
-        return assertion;
+    @Override
+    protected Map<String, Object> extractCustomAttributes(final String xml) {
+        return Collections.emptyMap();
     }
 }
diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/JsonValidationResponseParser.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/JsonValidationResponseParser.java
index 2cf1f05..8d37d15 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/JsonValidationResponseParser.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/JsonValidationResponseParser.java
@@ -4,9 +4,6 @@ import com.fasterxml.jackson.databind.ObjectMapper;
 import org.jasig.cas.client.util.CommonUtils;
 import org.jasig.cas.client.validation.TicketValidationException;
 
-import java.util.List;
-import java.util.Map;
-
 /**
  * This is {@link JsonValidationResponseParser}.
  *
diff --git a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/TicketValidationJsonResponse.java b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/TicketValidationJsonResponse.java
index 75e83af..e806470 100644
--- a/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/TicketValidationJsonResponse.java
+++ b/cas-client-core/src/main/java/org/jasig/cas/client/validation/json/TicketValidationJsonResponse.java
@@ -1,5 +1,13 @@
 package org.jasig.cas.client.validation.json;
 
+import org.jasig.cas.client.authentication.AttributePrincipal;
+import org.jasig.cas.client.authentication.AttributePrincipalImpl;
+import org.jasig.cas.client.proxy.ProxyGrantingTicketStorage;
+import org.jasig.cas.client.proxy.ProxyRetriever;
+import org.jasig.cas.client.util.CommonUtils;
+import org.jasig.cas.client.validation.Assertion;
+import org.jasig.cas.client.validation.AssertionImpl;
+
 import java.util.List;
 import java.util.Map;
 
@@ -28,6 +36,30 @@ final class TicketValidationJsonResponse {
         this.authenticationSuccess = authenticationSuccess;
     }
 
+    Assertion getAssertion(final ProxyGrantingTicketStorage proxyGrantingTicketStorage,
+                           final ProxyRetriever proxyRetriever) {
+        final String proxyGrantingTicketIou = getAuthenticationSuccess().getProxyGrantingTicket();
+        final String proxyGrantingTicket;
+        if (CommonUtils.isBlank(proxyGrantingTicketIou) || proxyGrantingTicketStorage == null) {
+            proxyGrantingTicket = null;
+        } else {
+            proxyGrantingTicket = proxyGrantingTicketStorage.retrieve(proxyGrantingTicketIou);
+        }
+
+        final Assertion assertion;
+        final Map<String, Object> attributes = getAuthenticationSuccess().getAttributes();
+        final String principal = getAuthenticationSuccess().getUser();
+        if (CommonUtils.isNotBlank(proxyGrantingTicket)) {
+            final AttributePrincipal attributePrincipal = new AttributePrincipalImpl(principal, attributes,
+                    proxyGrantingTicket, proxyRetriever);
+            assertion = new AssertionImpl(attributePrincipal);
+        } else {
+            assertion = new AssertionImpl(new AttributePrincipalImpl(principal, attributes));
+        }
+        return assertion;
+    }
+
+
     static class CasServiceResponseAuthenticationSuccess {
         private String user;
         private String proxyGrantingTicket;