Fix for HADOOP-22: remove unused imports. By Sami Siren.

git-svn-id: https://svn.apache.org/repos/asf/lucene/hadoop/trunk@375343 13f79535-47bb-0310-9956-ffa450edef68

src/java/org/apache/hadoop/dfs/ClientProtocol.java

@@ -16,7 +16,6 @@
 package org.apache.hadoop.dfs;
 
 import java.io.*;
-import org.apache.hadoop.io.*;
 
 /**********************************************************************
  * Protocol that an DFS client uses to communicate with the NameNode.

src/java/org/apache/hadoop/dfs/DF.java

@@ -15,13 +15,11 @@
  */
 package org.apache.hadoop.dfs;
 
-import java.io.File;
 import java.io.IOException;
 import java.io.InputStreamReader;
 import java.io.BufferedReader;
 
 import java.util.StringTokenizer;
-import java.util.Iterator;
 
 /** Filesystem disk space usage statistics.  Uses the unix 'df' program.
  * Tested on Linux, FreeBSD and Cygwin. */

src/java/org/apache/hadoop/dfs/DFSShell.java

@@ -16,11 +16,8 @@
 package org.apache.hadoop.dfs;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 
-import org.apache.hadoop.io.*;
-import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.fs.*;
 

src/java/org/apache/hadoop/dfs/DataNode.java

@@ -15,7 +15,6 @@
  */
 package org.apache.hadoop.dfs;
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.*;

src/java/org/apache/hadoop/dfs/DatanodeInfo.java

@@ -16,7 +16,6 @@
 package org.apache.hadoop.dfs;
 
 import org.apache.hadoop.io.*;
-import org.apache.hadoop.conf.*;
 
 import java.io.*;
 import java.util.*;

src/java/org/apache/hadoop/dfs/DatanodeProtocol.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.dfs;
 
 import java.io.*;
-import org.apache.hadoop.io.*;
 
 /**********************************************************************
  * Protocol that an DFS datanode uses to communicate with the NameNode.

src/java/org/apache/hadoop/dfs/NameNode.java

@@ -21,8 +21,6 @@ import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.LogFormatter;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 import java.util.logging.*;
 
 /**********************************************************

src/java/org/apache/hadoop/io/MapFile.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.io;
 
 import java.io.*;
-import java.util.Arrays;
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.conf.*;
 

src/java/org/apache/hadoop/io/ObjectWritable.java

@@ -16,11 +16,7 @@
 
 package org.apache.hadoop.io;
 
-import java.lang.reflect.Proxy;
-import java.lang.reflect.Method;
 import java.lang.reflect.Array;
-import java.lang.reflect.InvocationHandler;
-import java.lang.reflect.InvocationTargetException;
 
 import java.io.*;
 import java.util.*;

src/java/org/apache/hadoop/io/SequenceFile.java

@@ -20,7 +20,6 @@ import java.io.*;
 import java.util.*;
 import java.util.zip.*;
 import java.util.logging.*;
-import java.nio.channels.*;
 import java.net.InetAddress;
 import java.rmi.server.UID;
 import java.security.MessageDigest;

src/java/org/apache/hadoop/ipc/RPC.java

@@ -25,7 +25,6 @@ import java.lang.reflect.InvocationTargetException;
 import java.net.InetSocketAddress;
 import java.util.logging.Logger;
 import java.io.*;
-import java.util.*;
 
 import org.apache.hadoop.io.*;
 import org.apache.hadoop.conf.*;

src/java/org/apache/hadoop/mapred/CombiningCollector.java

@@ -17,11 +17,9 @@
 package org.apache.hadoop.mapred;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 
 import org.apache.hadoop.io.*;
-import org.apache.hadoop.conf.*;
 
 /** Implements partial value reduction during mapping.  This can minimize the
  * size of intermediate data.  Buffers a list of values for each unique key,

src/java/org/apache/hadoop/mapred/InputFormat.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.mapred;
 
 import java.io.IOException;
-import java.io.File;
 
 import org.apache.hadoop.fs.FileSystem;
 

src/java/org/apache/hadoop/mapred/InputFormatBase.java

@@ -19,7 +19,6 @@ package org.apache.hadoop.mapred;
 import java.io.IOException;
 import java.io.File;
 
-import java.util.Arrays;
 import java.util.ArrayList;
 import java.util.logging.Logger;
 

src/java/org/apache/hadoop/mapred/InterTrackerProtocol.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.mapred;
 
 import java.io.*;
-import org.apache.hadoop.io.*;
 
 /** 
  * Protocol that a TaskTracker and the central JobTracker use to communicate.

src/java/org/apache/hadoop/mapred/JobClient.java

@@ -15,7 +15,6 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;

src/java/org/apache/hadoop/mapred/JobConf.java

@@ -19,19 +19,11 @@ package org.apache.hadoop.mapred;
 
 import java.io.IOException;
 import java.io.File;
-import java.io.InputStream;
-import java.io.FileNotFoundException;
-import java.net.URL;
 
-import java.util.Properties;
-import java.util.jar.JarFile;
-import java.util.jar.JarEntry;
 import java.util.StringTokenizer;
 import java.util.ArrayList;
-import java.util.List;
 import java.util.Collections;
 
-import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.FileUtil;
 import org.apache.hadoop.conf.Configuration;
 

src/java/org/apache/hadoop/mapred/JobInProgress.java

@@ -15,14 +15,11 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.fs.*;
-import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.LogFormatter;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 import java.util.logging.*;
 

src/java/org/apache/hadoop/mapred/JobProfile.java

@@ -19,7 +19,6 @@ import org.apache.hadoop.io.*;
 
 import java.io.*;
 import java.net.*;
-import java.util.*;
 
 /**************************************************
  * A JobProfile is a MapReduce primitive.  Tracks a job,

src/java/org/apache/hadoop/mapred/JobStatus.java

@@ -18,8 +18,6 @@ package org.apache.hadoop.mapred;
 import org.apache.hadoop.io.*;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 
 /**************************************************
  * Describes the current status of a job.  This is

src/java/org/apache/hadoop/mapred/JobSubmissionProtocol.java

@@ -18,7 +18,6 @@ package org.apache.hadoop.mapred;
 
 import java.io.*;
 import java.util.*;
-import org.apache.hadoop.io.*;
 
 /** 
  * Protocol that a JobClient and the central JobTracker use to communicate.  The

src/java/org/apache/hadoop/mapred/JobTracker.java

@@ -16,7 +16,6 @@
 package org.apache.hadoop.mapred;
 
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;

src/java/org/apache/hadoop/mapred/JobTrackerInfoServer.java

@@ -15,23 +15,12 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
-import org.apache.hadoop.ipc.*;
-import org.apache.hadoop.conf.*;
-
-import org.mortbay.util.*;
 import org.mortbay.http.*;
 import org.mortbay.http.handler.*;
 import org.mortbay.jetty.servlet.*;
-import org.mortbay.jetty.*;
 
 import java.io.*;
 import java.net.*;
-import java.util.*;
-import java.util.logging.*;
-
-import javax.servlet.*;
-import javax.servlet.http.*;
 
 /*******************************************************
  * JobTrackerInfoServer provides stats about the JobTracker

src/java/org/apache/hadoop/mapred/LocalJobRunner.java

@@ -20,7 +20,6 @@ import java.io.*;
 import java.util.*;
 import java.util.logging.*;
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.LogFormatter;

src/java/org/apache/hadoop/mapred/MapOutputLocation.java

@@ -20,7 +20,6 @@ import java.io.IOException;
 
 import java.io.*;
 import org.apache.hadoop.io.*;
-import org.apache.hadoop.conf.*;
 
 /** The location of a map output file, as passed to a reduce task via the
  * {@link InterTrackerProtocol}. */ 

src/java/org/apache/hadoop/mapred/MapRunnable.java

@@ -18,9 +18,6 @@ package org.apache.hadoop.mapred;
 
 import java.io.IOException;
 
-import org.apache.hadoop.io.Writable;
-import org.apache.hadoop.io.WritableComparable;
-
 /** Expert: Permits greater control of map processing. For example,
  * implementations might perform multi-threaded, asynchronous mappings. */
 public interface MapRunnable extends JobConfigurable {

src/java/org/apache/hadoop/mapred/MapTask.java

@@ -17,8 +17,6 @@
 package org.apache.hadoop.mapred;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 
 import org.apache.hadoop.io.*;
 import org.apache.hadoop.conf.Configuration;

src/java/org/apache/hadoop/mapred/MapTaskRunner.java

@@ -15,14 +15,9 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
-import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
-import java.util.logging.*;
 
 /** Runs a map task. */
 class MapTaskRunner extends TaskRunner {

src/java/org/apache/hadoop/mapred/OutputCollector.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.mapred;
 
 import java.io.IOException;
-import java.io.DataInput;
 
 import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.io.WritableComparable;

src/java/org/apache/hadoop/mapred/OutputFormat.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.mapred;
 
 import java.io.IOException;
-import java.io.File;
 
 import org.apache.hadoop.fs.FileSystem;
 

src/java/org/apache/hadoop/mapred/RecordReader.java

@@ -19,7 +19,6 @@ package org.apache.hadoop.mapred;
 import java.io.IOException;
 import java.io.DataInput;
 
-import org.apache.hadoop.io.WritableComparable;
 import org.apache.hadoop.io.Writable;
 
 /** Reads key/value pairs from an input file {@link FileSplit}.

src/java/org/apache/hadoop/mapred/ReduceTask.java

@@ -22,7 +22,6 @@ import org.apache.hadoop.fs.*;
 import org.apache.hadoop.util.*;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 import java.text.*;
 

src/java/org/apache/hadoop/mapred/RunningJob.java

@@ -16,10 +16,7 @@
 
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
-
 import java.io.*;
-import java.net.*;
 
 /** 
  * Includes details on a running MapReduce job.  A client can

src/java/org/apache/hadoop/mapred/SequenceFileInputFormat.java

@@ -23,10 +23,6 @@ import org.apache.hadoop.fs.FileSystem;
 
 import org.apache.hadoop.io.SequenceFile;
 import org.apache.hadoop.io.MapFile;
-import org.apache.hadoop.io.Writable;
-import org.apache.hadoop.io.WritableComparable;
-import org.apache.hadoop.io.LongWritable;
-import org.apache.hadoop.io.UTF8;
 
 /** An {@link InputFormat} for {@link SequenceFile}s. */
 public class SequenceFileInputFormat extends InputFormatBase {

src/java/org/apache/hadoop/mapred/SequenceFileOutputFormat.java

@@ -22,7 +22,6 @@ import java.util.Arrays;
 
 import org.apache.hadoop.fs.FileSystem;
 
-import org.apache.hadoop.io.MapFile;
 import org.apache.hadoop.io.SequenceFile;
 import org.apache.hadoop.io.WritableComparable;
 import org.apache.hadoop.io.Writable;

src/java/org/apache/hadoop/mapred/SequenceFileRecordReader.java

@@ -17,15 +17,11 @@
 package org.apache.hadoop.mapred;
 
 import java.io.IOException;
-import java.io.File;
 
 import org.apache.hadoop.fs.FileSystem;
 
 import org.apache.hadoop.io.SequenceFile;
 import org.apache.hadoop.io.Writable;
-import org.apache.hadoop.io.WritableComparable;
-import org.apache.hadoop.io.LongWritable;
-import org.apache.hadoop.io.UTF8;
 import org.apache.hadoop.conf.Configuration;
 
 /** An {@link RecordReader} for {@link SequenceFile}s. */

src/java/org/apache/hadoop/mapred/Task.java

@@ -21,8 +21,6 @@ import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.*;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 
 /** Base class for tasks. */
 public abstract class Task implements Writable, Configurable {

src/java/org/apache/hadoop/mapred/TaskInProgress.java

@@ -15,14 +15,11 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
 import org.apache.hadoop.fs.*;
-import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.LogFormatter;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 import java.util.logging.*;
 

src/java/org/apache/hadoop/mapred/TaskRunner.java

@@ -15,15 +15,11 @@
  */
 package org.apache.hadoop.mapred;
 
-import org.apache.hadoop.io.*;
-import org.apache.hadoop.ipc.*;
 import org.apache.hadoop.conf.*;
 import org.apache.hadoop.util.LogFormatter;
 import org.apache.hadoop.fs.*;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 import java.util.logging.*;
 
 /** Base class that runs a task in a separate process.  Tasks are run in a

src/java/org/apache/hadoop/mapred/TaskStatus.java

@@ -18,8 +18,6 @@ package org.apache.hadoop.mapred;
 import org.apache.hadoop.io.*;
 
 import java.io.*;
-import java.net.*;
-import java.util.*;
 
 /**************************************************
  * Describes the current status of a task.  This is

src/java/org/apache/hadoop/mapred/TaskTrackerStatus.java

@@ -18,7 +18,6 @@ package org.apache.hadoop.mapred;
 import org.apache.hadoop.io.*;
 
 import java.io.*;
-import java.net.*;
 import java.util.*;
 
 /**************************************************

src/java/org/apache/hadoop/mapred/TaskUmbilicalProtocol.java

@@ -18,8 +18,6 @@ package org.apache.hadoop.mapred;
 
 import java.io.IOException;
 
-import org.apache.hadoop.io.*;
-
 /** Protocol that task child process uses to contact its parent process.  The
  * parent is a daemon which which polls the central master for a new map or
  * reduce task and runs it as a child process.  All communication between child

src/java/org/apache/hadoop/mapred/TextInputFormat.java

@@ -17,13 +17,11 @@
 package org.apache.hadoop.mapred;
 
 import java.io.IOException;
-import java.io.File;
 
 import org.apache.hadoop.fs.FileSystem;
 import org.apache.hadoop.fs.FSDataInputStream;
 
 import org.apache.hadoop.io.Writable;
-import org.apache.hadoop.io.WritableComparable;
 import org.apache.hadoop.io.LongWritable;
 import org.apache.hadoop.io.UTF8;
 

src/java/org/apache/hadoop/mapred/demo/Grep.java

@@ -17,18 +17,15 @@ package org.apache.hadoop.mapred.demo;
 
 import org.apache.hadoop.mapred.JobConf;
 import org.apache.hadoop.mapred.JobClient;
-import org.apache.hadoop.mapred.RunningJob;
 import org.apache.hadoop.mapred.SequenceFileOutputFormat;
 import org.apache.hadoop.mapred.SequenceFileInputFormat;
 
 import org.apache.hadoop.mapred.lib.RegexMapper;
 import org.apache.hadoop.mapred.lib.InverseMapper;
 import org.apache.hadoop.mapred.lib.LongSumReducer;
-import org.apache.hadoop.mapred.lib.IdentityReducer;
 
 import org.apache.hadoop.io.UTF8;
 import org.apache.hadoop.io.LongWritable;
-import org.apache.hadoop.io.WritableComparator;
 
 import org.apache.hadoop.conf.Configuration;
 

src/java/org/apache/hadoop/mapred/lib/LongSumReducer.java

@@ -24,8 +24,6 @@ import org.apache.hadoop.mapred.OutputCollector;
 import org.apache.hadoop.mapred.JobConf;
 import org.apache.hadoop.mapred.Reporter;
 
-
-import org.apache.hadoop.io.Writable;
 import org.apache.hadoop.io.WritableComparable;
 import org.apache.hadoop.io.LongWritable;
 

src/test/org/apache/hadoop/fs/TestFileSystem.java

@@ -21,7 +21,6 @@ import java.util.*;
 import junit.framework.TestCase;
 import java.util.logging.*;
 
-import org.apache.hadoop.fs.*;
 import org.apache.hadoop.mapred.*;
 import org.apache.hadoop.mapred.lib.*;
 import org.apache.hadoop.io.*;

src/test/org/apache/hadoop/io/TestArrayFile.java

@@ -17,7 +17,6 @@
 package org.apache.hadoop.io;
 
 import java.io.*;
-import java.util.*;
 import junit.framework.TestCase;
 import java.util.logging.*;
 

src/test/org/apache/hadoop/io/TestSetFile.java

@@ -23,7 +23,6 @@ import java.util.logging.*;
 
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.conf.*;
-import org.apache.hadoop.util.LogFormatter;
 
 /** Support for flat files of binary key/value pairs. */
 public class TestSetFile extends TestCase {

src/test/org/apache/hadoop/io/TestUTF8.java

@@ -18,7 +18,6 @@ package org.apache.hadoop.io;
 
 import junit.framework.TestCase;
 import java.util.Random;
-import java.util.Arrays;
 
 /** Unit tests for UTF8. */
 public class TestUTF8 extends TestCase {

src/test/org/apache/hadoop/io/TestWritable.java

@@ -19,8 +19,6 @@ package org.apache.hadoop.io;
 import java.io.*;
 import java.util.Random;
 import junit.framework.TestCase;
-import org.apache.hadoop.io.*;
-import org.apache.hadoop.conf.Configuration;
 
 /** Unit tests for Writable. */
 public class TestWritable extends TestCase {

src/test/org/apache/hadoop/mapred/MapredLoadTest.java

@@ -18,11 +18,9 @@ package org.apache.hadoop.mapred;
 import org.apache.hadoop.fs.*;
 import org.apache.hadoop.io.*;
 import org.apache.hadoop.conf.*;
-import org.apache.hadoop.mapred.lib.*;
 
 import java.io.*;
 import java.util.*;
-import java.math.*;
 
 /**********************************************************
  * MapredLoadTest generates a bunch of work that exercises