Github user selvaganesang commented on a diff in the pull request:
https://github.com/apache/trafodion/pull/1417#discussion_r164278889
--- Diff: core/sql/executor/HdfsClient_JNI.cpp ---
@@ -0,0 +1,452 @@
+//**********************************************************************
+// @@@ START COPYRIGHT @@@
+//
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements. See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership. The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License. You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied. See the License for the
+// specific language governing permissions and limitations
+// under the License.
+//
+// @@@ END COPYRIGHT @@@
+// **********************************************************************
+
+#include "QRLogger.h"
+#include "Globals.h"
+#include "jni.h"
+#include "HdfsClient_JNI.h"
+
+//
===========================================================================
+// ===== Class HdfsScan
+//
===========================================================================
+
+JavaMethodInit* HdfsScan::JavaMethods_ = NULL;
+jclass HdfsScan::javaClass_ = 0;
+bool HdfsScan::javaMethodsInitialized_ = false;
+pthread_mutex_t HdfsScan::javaMethodsInitMutex_ =
PTHREAD_MUTEX_INITIALIZER;
+
+static const char* const hdfsScanErrorEnumStr[] =
+{
--- End diff --
This will be populated when HdfsScan JNI methods are introduced
---