Fix serviceAccountCreds test and computeEngineCreds test.

Xudong Ma · Xudong Ma · commit d1e15ab859dc · 2015-08-04T18:11:59.000-07:00
See grpc#702 for details.
diff --git a/interop-testing/src/main/java/io/grpc/testing/integration/AbstractTransportTest.java b/interop-testing/src/main/java/io/grpc/testing/integration/AbstractTransportTest.java
@@ -714,7 +714,8 @@ public void serviceAccountCreds(String jsonKey, InputStream credentialsStream, S
         ServiceAccountCredentials.class.cast(GoogleCredentials.fromStream(credentialsStream));
     credentials = credentials.createScoped(Arrays.<String>asList(authScope));
     TestServiceGrpc.TestServiceBlockingStub stub = blockingStub
-        .withInterceptors(new ClientAuthInterceptor(credentials, testServiceExecutor));
+        .withInterceptors(new ClientAuthInterceptor(credentials,
+            Executors.newSingleThreadExecutor()));
     final SimpleRequest request = SimpleRequest.newBuilder()
         .setFillUsername(true)
         .setFillOauthScope(true)
@@ -746,7 +747,8 @@ public void serviceAccountCreds(String jsonKey, InputStream credentialsStream, S
   public void computeEngineCreds(String serviceAccount, String oauthScope) throws Exception {
     ComputeEngineCredentials credentials = new ComputeEngineCredentials();
     TestServiceGrpc.TestServiceBlockingStub stub = blockingStub
-        .withInterceptors(new ClientAuthInterceptor(credentials, testServiceExecutor));
+        .withInterceptors(new ClientAuthInterceptor(credentials,
+            Executors.newSingleThreadExecutor()));
     final SimpleRequest request = SimpleRequest.newBuilder()
         .setFillUsername(true)
         .setFillOauthScope(true)
