From 25840a12791323861dbdc3478d03a9663ceae342 Mon Sep 17 00:00:00 2001
From: Milan Perera <milanperera@users.noreply.github.com>
Date: Fri, 4 Aug 2017 09:33:37 +0530
Subject: [PATCH] Fixed NPE in API publisher client (#882)

---
 .../apimgt/integration/client/OAuthRequestInterceptor.java    | 4 ++++
 .../client/exception/APIMClientOAuthException.java            | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/OAuthRequestInterceptor.java b/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/OAuthRequestInterceptor.java
index d9afb2aa55..a1ab7d6c73 100755
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/OAuthRequestInterceptor.java
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/OAuthRequestInterceptor.java
@@ -101,6 +101,10 @@ public class OAuthRequestInterceptor implements RequestInterceptor {
                                                                       REQUIRED_SCOPE);
                 tenantBasedAccessTokenInfo.setExpiresIn(
                         System.currentTimeMillis() + (tenantBasedAccessTokenInfo.getExpiresIn() * 1000));
+                if (tenantBasedAccessTokenInfo.getScopes() == null) {
+                    throw new APIMClientOAuthException("Failed to retrieve scopes from access token");
+                }
+
                 if (tenantBasedAccessTokenInfo.getScopes().contains(APIM_SUBSCRIBE_SCOPE)) {
                     tenantUserTokenMap.put(username, tenantBasedAccessTokenInfo);
                 }
diff --git a/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/exception/APIMClientOAuthException.java b/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/exception/APIMClientOAuthException.java
index 48f92d5abd..359b4b621e 100644
--- a/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/exception/APIMClientOAuthException.java
+++ b/components/apimgt-extensions/org.wso2.carbon.apimgt.integration.client/src/main/java/org/wso2/carbon/apimgt/integration/client/exception/APIMClientOAuthException.java
@@ -35,7 +35,7 @@ public class APIMClientOAuthException extends RuntimeException {
         this.responseStatus = status;
     }
 
-    APIMClientOAuthException(String message) {
+    public APIMClientOAuthException(String message) {
         super(message);
     }