HDDS-690. Javadoc build fails in hadoop-ozone.

Contributed by Takanobu Asanuma.

hadoop-ozone/client/src/main/java/org/apache/hadoop/ozone/client/BucketArgs.java

@@ -74,7 +74,7 @@ public final class BucketArgs {
 
   /**
    * Returns the ACL's associated with this bucket.
-   * @return List<OzoneAcl>
+   * @return {@literal List<OzoneAcl>}
    */
   public List<OzoneAcl> getAcls() {
     return acls;

hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmBucketArgs.java

@@ -100,7 +100,7 @@ public final class OmBucketArgs implements Auditable {
 
   /**
    * Returns the ACL's that are to be added.
-   * @return List<OzoneAclInfo>
+   * @return {@literal List<OzoneAclInfo>}
    */
   public List<OzoneAcl> getAddAcls() {
     return addAcls;
@@ -108,7 +108,7 @@ public final class OmBucketArgs implements Auditable {
 
   /**
    * Returns the ACL's that are to be removed.
-   * @return List<OzoneAclInfo>
+   * @return {@literal List<OzoneAclInfo>}
    */
   public List<OzoneAcl> getRemoveAcls() {
     return removeAcls;

hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmBucketInfo.java

@@ -101,7 +101,7 @@ public final class OmBucketInfo implements Auditable {
 
   /**
    * Returns the ACL's associated with this bucket.
-   * @return List<OzoneAcl>
+   * @return {@literal List<OzoneAcl>}
    */
   public List<OzoneAcl> getAcls() {
     return acls;

hadoop-ozone/common/src/main/java/org/apache/hadoop/ozone/om/helpers/OmKeyInfo.java

@@ -119,7 +119,6 @@ public final class OmKeyInfo {
    * This will be called when the key is being committed to OzoneManager.
    *
    * @param locationInfoList list of locationInfo
-   * @throws IOException
    */
   public void updateLocationInfoList(List<OmKeyLocationInfo> locationInfoList) {
     long latestVersion = getLatestVersionLocations().getVersion();

hadoop-ozone/objectstore-service/src/main/java/org/apache/hadoop/ozone/web/handlers/VolumeHandler.java

@@ -60,7 +60,8 @@ public class VolumeHandler implements Volume {
    * Creates a volume.
    *
    * @param volume Volume Name, this has to be unique at Ozone cluster level
-   * @param quota Quota for this Storage Volume - <int>(<BYTES|MB|GB|TB>)
+   * @param quota Quota for this Storage Volume
+   *             - {@literal <int>(<BYTES|MB|GB|TB>)}
    * @param req Request Object
    * @param uriInfo URI info
    * @param headers Http Headers
@@ -114,7 +115,8 @@ public class VolumeHandler implements Volume {
    * with neither of these actions, update just returns 200 OK.
    *
    * @param volume Volume Name, this has to be unique at Ozone Level
-   * @param quota Quota for this volume - <int>(<BYTES|MB|GB|TB>)|remove
+   * @param quota Quota for this volume
+   *             - {@literal <int>(<BYTES|MB|GB|TB>)}|remove
    * @param req - Request Object
    * @param uriInfo - URI info
    * @param headers Http Headers

hadoop-ozone/objectstore-service/src/main/java/org/apache/hadoop/ozone/web/interfaces/Accounting.java

@@ -25,7 +25,7 @@ package org.apache.hadoop.ozone.web.interfaces;
  * TODO : Technically we need to report bucket creation and deletion too
  * since the bucket names and metadata consume storage.
  * <p>
- * TODO : We should separate out reporting metadata & data --
+ * TODO : We should separate out reporting metadata &amp; data --
  * <p>
  * In some cases end users will only want to account for the data they are
  * storing since metadata is mostly a cost of business.

hadoop-ozone/objectstore-service/src/main/java/org/apache/hadoop/ozone/web/interfaces/Volume.java

@@ -54,11 +54,12 @@ public interface Volume {
    *
    * Params :
    * Quota - Specifies the Maximum usable size by the user
-   * the valid parameters for quota are <int>(<BYTES| MB|GB|TB>) | remove.
-   * For example 10GB or "remove".
+   * the valid parameters for quota are {@literal <int>(<BYTES| MB|GB|TB>)}
+   * | remove. For example 10GB or "remove".
    *
    * @param volume Volume Name, this has to be unique at Ozone Level
-   * @param quota Quota for this Storage Volume - <int>(<MB|GB|TB>) | remove
+   * @param quota Quota for this Storage Volume - {@literal <int>(<MB|GB|TB>)}
+   *             | remove
    * @param req - Request Object - Request Object
    * @param uriInfo - Http UriInfo
    * @param headers Http Headers HttpHeaders
@@ -91,11 +92,12 @@ public interface Volume {
    * Params :
    * Owner - Specifies the name of the owner
    * Quota - Specifies the Maximum usable size by the user
-   * the valid parameters for quota are <int>(<MB|GB|TB>) | remove.
+   * the valid parameters for quota are {@literal <int>(<MB|GB|TB>)} | remove.
    * For example 10GB or "remove".
    *
    * @param volume Volume Name, this has to be unique at Ozone Level
-   * @param quota Quota for this Storage Volume - <int>(<MB|GB|TB>) | remove
+   * @param quota Quota for this Storage Volume - {@literal <int>(<MB|GB|TB>)}
+   *             | remove
    * @param req - Request Object - Request Object
    * @param headers Http Headers HttpHeaders
    *

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/KeyManager.java

@@ -72,7 +72,7 @@ public interface KeyManager {
    *
    * @param args the args of the key provided by client.
    * @return a OpenKeySession instance client uses to talk to container.
-   * @throws Exception
+   * @throws IOException
    */
   OpenKeySession openKey(OmKeyArgs args) throws IOException;
 

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OzoneManagerLock.java

@@ -33,6 +33,7 @@ import static org.apache.hadoop.ozone.OzoneConsts.OM_USER_PREFIX;
  * We also maintain lock hierarchy, based on the weight.
  *
  * <table>
+ *   <caption></caption>
  *   <tr>
  *     <td><b> WEIGHT </b></td> <td><b> LOCK </b></td>
  *   </tr>
@@ -53,9 +54,9 @@ import static org.apache.hadoop.ozone.OzoneConsts.OM_USER_PREFIX;
  * <p>
  * For example:
  * <br>
- * -> acquireVolumeLock (will work)<br>
- *   +-> acquireBucketLock (will work)<br>
- *     +--> acquireUserLock (will throw Exception)<br>
+ * {@literal ->} acquireVolumeLock (will work)<br>
+ *   {@literal +->} acquireBucketLock (will work)<br>
+ *     {@literal +-->} acquireUserLock (will throw Exception)<br>
  * </p>
  * <br>
  * To acquire a user lock you should not hold any Volume/Bucket lock. Similarly

hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ServiceListJSONServlet.java

@@ -41,7 +41,7 @@ import java.io.PrintWriter;
  *
  * The return format is of JSON and in the form
  * <p>
- *  <code><pre>
+ *  <pre><code>
  *  {
  *    "services" : [
  *      {
@@ -54,7 +54,7 @@ import java.io.PrintWriter;
  *      }
  *    ]
  *  }
- *  </pre></code>
+ *  </code></pre>
  *  <p>
  *
  */

hadoop-ozone/tools/src/main/java/org/apache/hadoop/ozone/genconf/GenerateOzoneRequiredConfigurations.java

@@ -40,7 +40,7 @@ import java.util.List;
  * This tool generates an ozone-site.xml with minimally required configs.
  * This tool can be invoked as follows:<br>
  * <ul>
- * <li>ozone genconf <Path to output file></li>
+ * <li>ozone genconf {@literal <Path to output file>}</li>
  * <li>ozone genconf --help</li>
  * <li>ozone genconf -h</li>
  * </ul>