MAPREDUCE-7014. Fix java doc errors in jdk1.8. Contributed by Steve Loughran.


Project: http://git-wip-us.apache.org/repos/asf/hadoop/repo
Commit: http://git-wip-us.apache.org/repos/asf/hadoop/commit/3cd75845
Tree: http://git-wip-us.apache.org/repos/asf/hadoop/tree/3cd75845
Diff: http://git-wip-us.apache.org/repos/asf/hadoop/diff/3cd75845

Branch: refs/heads/HDFS-7240
Commit: 3cd75845da1aced3d88e0ce68c68e8d95f48fb79
Parents: 2bde3ae
Author: Rohith Sharma K S <rohithsharm...@apache.org>
Authored: Mon Nov 27 22:01:00 2017 +0530
Committer: Rohith Sharma K S <rohithsharm...@apache.org>
Committed: Mon Nov 27 22:01:00 2017 +0530

----------------------------------------------------------------------
 .../lib/output/PathOutputCommitterFactory.java          | 12 ++++++------
 .../src/main/java/org/apache/hadoop/fs/s3a/Invoker.java |  4 +++-
 .../java/org/apache/hadoop/fs/s3a/S3AFileSystem.java    |  2 +-
 .../main/java/org/apache/hadoop/fs/s3a/S3AUtils.java    |  4 ++++
 .../org/apache/hadoop/fs/s3a/WriteOperationHelper.java  |  1 +
 .../hadoop/fs/s3a/commit/AbstractS3ACommitter.java      |  1 +
 .../apache/hadoop/fs/s3a/commit/CommitOperations.java   |  2 +-
 .../hadoop/fs/s3a/commit/staging/StagingCommitter.java  |  1 +
 .../hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java    |  2 +-
 9 files changed, 19 insertions(+), 10 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/PathOutputCommitterFactory.java
----------------------------------------------------------------------
diff --git 
a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/PathOutputCommitterFactory.java
 
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/PathOutputCommitterFactory.java
index 0df14d1..7d214f2 100644
--- 
a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/PathOutputCommitterFactory.java
+++ 
b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/output/PathOutputCommitterFactory.java
@@ -39,12 +39,12 @@ import org.apache.hadoop.util.ReflectionUtils;
  *
  * Algorithm:
  * <ol>
- *   <ul>If an explicit committer factory is named, it is used.</ul>
- *   <ul>The output path is examined.
+ *   <li>If an explicit committer factory is named, it is used.</li>
+ *   <li>The output path is examined.
  *   If is non null and there is an explicit schema for that filesystem,
- *   its factory is instantiated.</ul>
- *   <ul>Otherwise, an instance of {@link FileOutputCommitter} is
- *   created.</ul>
+ *   its factory is instantiated.</li>
+ *   <li>Otherwise, an instance of {@link FileOutputCommitter} is
+ *   created.</li>
  * </ol>
  *
  * In {@link FileOutputFormat}, the created factory has its method
@@ -186,7 +186,7 @@ public class PathOutputCommitterFactory extends Configured {
   }
 
   /**
-   * Create the committer factory for a task attempt & destination, then
+   * Create the committer factory for a task attempt and destination, then
    * create the committer from it.
    * @param outputPath the task's output path, or or null if no output path
    * has been defined.

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Invoker.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Invoker.java 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Invoker.java
index 9900f4c..107a247 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Invoker.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/Invoker.java
@@ -55,7 +55,7 @@ import org.apache.hadoop.io.retry.RetryPolicy;
  *
  * The static {@link #quietly(String, String, VoidOperation)} and
  * {@link #quietlyEval(String, String, Operation)} calls exist to take any
- * operation and quietly catch & log at debug. The return value of
+ * operation and quietly catch and log at debug. The return value of
  * {@link #quietlyEval(String, String, Operation)} is a java 8 optional,
  * which can then be used in java8-expressions.
  */
@@ -390,9 +390,11 @@ public class Invoker {
    * Execute an operation; any exception raised is caught and
    * logged at debug.
    * The result is only non-empty if the operation succeeded
+   * @param <T> type to return
    * @param action action to execute
    * @param path path (for exception construction)
    * @param operation operation
+   * @return the result of a successful operation
    */
   public static <T> Optional<T> quietlyEval(String action,
       String path,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
index b08a134..fba8ea1 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java
@@ -1247,7 +1247,7 @@ public class S3AFileSystem extends FileSystem implements 
StreamCapabilities {
    * @param request last list objects request to continue
    * @param prevResult last paged result to continue from
    * @return the next result object
-   * @throws IOException: none, just there for retryUntranslated.
+   * @throws IOException none, just there for retryUntranslated.
    */
   @Retries.RetryRaw
   protected S3ListResult continueListObjects(S3ListRequest request,

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java
index 70926e6..23ceafa 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AUtils.java
@@ -949,8 +949,10 @@ public final class S3AUtils {
   /**
    * Map an operation to every {@link LocatedFileStatus} in a remote
    * iterator, returning a list of the results.
+   * @param <T> return type of map
    * @param iterator iterator from a list
    * @param eval closure to evaluate
+   * @return the list of mapped results.
    * @throws IOException anything in the closure, or iteration logic.
    */
   public static <T> List<T> mapLocatedFiles(
@@ -965,8 +967,10 @@ public final class S3AUtils {
   /**
    * Map an operation to every {@link LocatedFileStatus} in a remote
    * iterator, returning a list of the all results which were not empty.
+   * @param <T> return type of map
    * @param iterator iterator from a list
    * @param eval closure to evaluate
+   * @return the flattened list of mapped results.
    * @throws IOException anything in the closure, or iteration logic.
    */
   public static <T> List<T> flatmapLocatedFiles(

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/WriteOperationHelper.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/WriteOperationHelper.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/WriteOperationHelper.java
index b3dd4e2..477200e 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/WriteOperationHelper.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/WriteOperationHelper.java
@@ -179,6 +179,7 @@ public class WriteOperationHelper {
   /**
    * Start the multipart upload process.
    * Retry policy: retrying, translated.
+   * @param destKey destination of upload
    * @return the upload result containing the ID
    * @throws IOException IO problem
    */

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
index 3277916..5f1ddfa 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/AbstractS3ACommitter.java
@@ -523,6 +523,7 @@ public abstract class AbstractS3ACommitter extends 
PathOutputCommitter {
    * Abort all pending uploads to the destination directory during
    * job cleanup operations.
    * @param suppressExceptions should exceptions be suppressed
+   * @throws IOException IO problem
    */
   protected void abortPendingUploadsInCleanup(
       boolean suppressExceptions) throws IOException {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitOperations.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitOperations.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitOperations.java
index 9381ef1..1338d2e 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitOperations.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/CommitOperations.java
@@ -529,7 +529,7 @@ public class CommitOperations {
    * {@link #maybeRethrow()} could be done as a map(), but because Java doesn't
    * allow checked exceptions in a map, the following code is invalid
    * <pre>
-   *   exception.map((e) -> {throw e;}
+   *   exception.map((e) -&gt; {throw e;}
    * </pre>
    * As a result, the code to work with exceptions would be almost as 
convoluted
    * as the original.

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
index 922d1ad..2182eaa 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/commit/staging/StagingCommitter.java
@@ -413,6 +413,7 @@ public class StagingCommitter extends AbstractS3ACommitter {
    * @param relative the path of a file relative to the task attempt path
    * @param context the JobContext or TaskAttemptContext for this job
    * @return the S3 Path where the file will be uploaded
+   * @throws IOException IO problem
    */
   protected final Path getFinalPath(String relative, JobContext context)
       throws IOException {

http://git-wip-us.apache.org/repos/asf/hadoop/blob/3cd75845/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java
----------------------------------------------------------------------
diff --git 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java
 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java
index 13384cf..4dfbdc8 100644
--- 
a/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java
+++ 
b/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/s3guard/DynamoDBMetadataStore.java
@@ -745,7 +745,7 @@ public class DynamoDBMetadataStore implements MetadataStore 
{
    * the call to {@link #processBatchWriteRequest(PrimaryKey[], Item[])}
    * is only tried once.
    * @param meta Directory listing metadata.
-   * @throws IOException
+   * @throws IOException IO problem
    */
   @Override
   @Retries.OnceTranslated("retry(listFullPaths); once(batchWrite)")


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