fix conflicts

core/src/main/java/org/apache/spark/SparkFirehoseListener.java

@@ -0,0 +1,115 @@
+/*
+ * 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.
+ */
+
+package org.apache.spark;
+
+import org.apache.spark.scheduler.*;
+
+/**
+ * Class that allows users to receive all SparkListener events.
+ * Users should override the onEvent method.
+ *
+ * This is a concrete Java class in order to ensure that we don't forget to update it when adding
+ * new methods to SparkListener: forgetting to add a method will result in a compilation error (if
+ * this was a concrete Scala class, default implementations of new event handlers would be inherited
+ * from the SparkListener trait).
+ */
+public class SparkFirehoseListener implements SparkListener {
+
+    public void onEvent(SparkListenerEvent event) { }
+
+    @Override
+    public final void onStageCompleted(SparkListenerStageCompleted stageCompleted) {
+        onEvent(stageCompleted);
+    }
+
+    @Override
+    public final void onStageSubmitted(SparkListenerStageSubmitted stageSubmitted) {
+        onEvent(stageSubmitted);
+    }
+
+    @Override
+    public final void onTaskStart(SparkListenerTaskStart taskStart) {
+        onEvent(taskStart);
+    }
+
+    @Override
+    public final void onTaskGettingResult(SparkListenerTaskGettingResult taskGettingResult) {
+        onEvent(taskGettingResult);
+    }
+
+    @Override
+    public final void onTaskEnd(SparkListenerTaskEnd taskEnd) {
+        onEvent(taskEnd);
+    }
+
+    @Override
+    public final void onJobStart(SparkListenerJobStart jobStart) {
+        onEvent(jobStart);
+    }
+
+    @Override
+    public final void onJobEnd(SparkListenerJobEnd jobEnd) {
+        onEvent(jobEnd);
+    }
+
+    @Override
+    public final void onEnvironmentUpdate(SparkListenerEnvironmentUpdate environmentUpdate) {
+        onEvent(environmentUpdate);
+    }
+
+    @Override
+    public final void onBlockManagerAdded(SparkListenerBlockManagerAdded blockManagerAdded) {
+        onEvent(blockManagerAdded);
+    }
+
+    @Override
+    public final void onBlockManagerRemoved(SparkListenerBlockManagerRemoved blockManagerRemoved) {
+        onEvent(blockManagerRemoved);
+    }
+
+    @Override
+    public final void onUnpersistRDD(SparkListenerUnpersistRDD unpersistRDD) {
+        onEvent(unpersistRDD);
+    }
+
+    @Override
+    public final void onApplicationStart(SparkListenerApplicationStart applicationStart) {
+        onEvent(applicationStart);
+    }
+
+    @Override
+    public final void onApplicationEnd(SparkListenerApplicationEnd applicationEnd) {
+        onEvent(applicationEnd);
+    }
+
+    @Override
+    public final void onExecutorMetricsUpdate(
+            SparkListenerExecutorMetricsUpdate executorMetricsUpdate) {
+        onEvent(executorMetricsUpdate);
+    }
+
+    @Override
+    public final void onExecutorAdded(SparkListenerExecutorAdded executorAdded) {
+        onEvent(executorAdded);
+    }
+
+    @Override
+    public final void onExecutorRemoved(SparkListenerExecutorRemoved executorRemoved) {
+        onEvent(executorRemoved);
+    }
+}

core/src/main/scala/org/apache/spark/SparkContext.scala

@@ -804,6 +804,8 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
       vClass: Class[V],
       conf: Configuration = hadoopConfiguration): RDD[(K, V)] = {
     assertNotStopped()
+    // The call to new NewHadoopJob automatically adds security credentials to conf, 
+    // so we don't need to explicitly add them ourselves
     val job = new NewHadoopJob(conf)
     NewFileInputFormat.addInputPath(job, new Path(path))
     val updatedConf = job.getConfiguration
@@ -826,7 +828,10 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli
       kClass: Class[K],
       vClass: Class[V]): RDD[(K, V)] = {
     assertNotStopped()
-    new NewHadoopRDD(this, fClass, kClass, vClass, conf)
+    // Add necessary security credentials to the JobConf. Required to access secure HDFS.
+    val jconf = new JobConf(conf)
+    SparkHadoopUtil.get.addCredentials(jconf)
+    new NewHadoopRDD(this, fClass, kClass, vClass, jconf)
   }
 
   /** Get an RDD for a Hadoop SequenceFile with given key and value types.