[HUDI-482] Fix missing @Override annotation on methods (#1156)

* [HUDI-482] Fix missing @Override annotation on methods

hudi-common/src/main/java/org/apache/hudi/common/table/log/HoodieLogFileReader.java

@@ -108,6 +108,7 @@ class HoodieLogFileReader implements HoodieLogFormat.Reader {
    */
   private void addShutDownHook() {
     Runtime.getRuntime().addShutdownHook(new Thread() {
+      @Override
       public void run() {
         try {
           close();

hudi-common/src/main/java/org/apache/hudi/common/table/log/HoodieLogFormatWriter.java

@@ -107,6 +107,7 @@ public class HoodieLogFormatWriter implements HoodieLogFormat.Writer {
     return fs;
   }
 
+  @Override
   public HoodieLogFile getLogFile() {
     return logFile;
   }
@@ -212,6 +213,7 @@ public class HoodieLogFormatWriter implements HoodieLogFormat.Writer {
     output.hsync();
   }
 
+  @Override
   public long getCurrentSize() throws IOException {
     if (output == null) {
       throw new IllegalStateException("Cannot get current size as the underlying stream has been closed already");

hudi-common/src/main/java/org/apache/hudi/common/table/timeline/HoodieActiveTimeline.java

@@ -145,6 +145,7 @@ public class HoodieActiveTimeline extends HoodieDefaultTimeline {
    * timeline * With Async compaction a requested/inflight compaction-instant is a valid baseInstant for a file-slice as
    * there could be delta-commits with that baseInstant.
    */
+  @Override
   public HoodieTimeline getCommitsAndCompactionTimeline() {
     return getTimelineOfActions(Sets.newHashSet(COMMIT_ACTION, DELTA_COMMIT_ACTION, COMPACTION_ACTION));
   }

hudi-common/src/main/java/org/apache/hudi/common/table/view/AbstractTableFileSystemView.java

@@ -182,6 +182,7 @@ public abstract class AbstractTableFileSystemView implements SyncableFileSystemV
   /**
    * Clears the partition Map and reset view states.
    */
+  @Override
   public final void reset() {
     try {
       writeLock.lock();
@@ -380,6 +381,7 @@ public abstract class AbstractTableFileSystemView implements SyncableFileSystemV
   /**
    * Get Latest data file for a partition and file-Id.
    */
+  @Override
   public final Option<HoodieDataFile> getLatestDataFile(String partitionStr, String fileId) {
     try {
       readLock.lock();
@@ -434,6 +436,7 @@ public abstract class AbstractTableFileSystemView implements SyncableFileSystemV
   /**
    * Get Latest File Slice for a given fileId in a given partition.
    */
+  @Override
   public final Option<FileSlice> getLatestFileSlice(String partitionStr, String fileId) {
     try {
       readLock.lock();

hudi-common/src/main/java/org/apache/hudi/common/table/view/HoodieTableFileSystemView.java

@@ -205,6 +205,7 @@ public class HoodieTableFileSystemView extends IncrementalTimelineSyncFileSystem
     });
   }
 
+  @Override
   public void close() {
     closed = true;
     super.reset();
@@ -212,6 +213,7 @@ public class HoodieTableFileSystemView extends IncrementalTimelineSyncFileSystem
     fgIdToPendingCompaction = null;
   }
 
+  @Override
   public boolean isClosed() {
     return closed;
   }

hudi-common/src/main/java/org/apache/hudi/common/table/view/SpillableMapBasedFileSystemView.java

@@ -76,6 +76,7 @@ public class SpillableMapBasedFileSystemView extends HoodieTableFileSystemView {
     }
   }
 
+  @Override
   protected Map<HoodieFileGroupId, Pair<String, CompactionOperation>> createFileIdToPendingCompactionMap(
       Map<HoodieFileGroupId, Pair<String, CompactionOperation>> fgIdToPendingCompaction) {
     try {
@@ -91,6 +92,7 @@ public class SpillableMapBasedFileSystemView extends HoodieTableFileSystemView {
     }
   }
 
+  @Override
   public Stream<HoodieFileGroup> getAllFileGroups() {
     return ((ExternalSpillableMap) partitionToFileGroupsMap).valueStream()
         .flatMap(fg -> ((List<HoodieFileGroup>) fg).stream());

hudi-common/src/main/java/org/apache/hudi/common/util/ObjectSizeCalculator.java

@@ -124,6 +124,7 @@ public class ObjectSizeCalculator {
 
   private final LoadingCache<Class<?>, ClassSizeInfo> classSizeInfos =
       CacheBuilder.newBuilder().build(new CacheLoader<Class<?>, ClassSizeInfo>() {
+        @Override
         public ClassSizeInfo load(Class<?> clazz) {
           return new ClassSizeInfo(clazz);
         }

hudi-common/src/main/java/org/apache/hudi/common/util/collection/DiskBasedMap.java

@@ -125,6 +125,7 @@ public final class DiskBasedMap<T extends Serializable, R extends Serializable>
    */
   private void addShutDownHook() {
     Runtime.getRuntime().addShutdownHook(new Thread() {
+      @Override
       public void run() {
         try {
           if (writeOnlyFileHandle != null) {

hudi-common/src/main/java/org/apache/hudi/common/util/collection/LazyFileIterable.java

@@ -115,6 +115,7 @@ public class LazyFileIterable<T, R> implements Iterable<R> {
 
     private void addShutdownHook() {
       Runtime.getRuntime().addShutdownHook(new Thread() {
+        @Override
         public void run() {
           close();
         }