using serviceAccount (serviceprincipalAppId) for cache

indexer-service-azure/src/main/java/org/opendes/indexer/azure/util/ServiceAccountJwtClientImpl.java

@@ -59,7 +59,7 @@ public class ServiceAccountJwtClientImpl implements IServiceAccountJwtClient {
             this.dpsHeaders.put(DpsHeaders.USER_EMAIL, tenant.getServiceAccount());
 
             if (!IdToken.refreshToken(cachedToken)) {
-                ACCESS_TOKEN = cachedToken.getTokenValue();
+                return cachedToken.getTokenValue();
             }
 
             ExecutorService service = Executors.newFixedThreadPool(1);

indexer-service-gcp/pom.xml

@@ -72,12 +72,6 @@
             <artifactId>appengine-gcs-client</artifactId>
             <version>0.8</version>
         </dependency>
-        <dependency>
-            <groupId>com.microsoft.azure</groupId>
-            <artifactId>azure-spring-boot</artifactId>
-            <version>2.1.7</version>
-            <scope>compile</scope>
-        </dependency>
     </dependencies>
 
     <build>