Javadoc: Add missing comments

Author: garydgregory

commons-vfs2-hdfs/src/main/java/org/apache/commons/vfs2/provider/hdfs/HdfsFileContentInfoFactory.java

@@ -34,6 +34,13 @@ public class HdfsFileContentInfoFactory implements FileContentInfoFactory {
     private static final String CONTENT = "text/plain";
     private static final String ENCODING = StandardCharsets.UTF_8.name();
 
+    /**
+     * Constructs a new instance.
+     */
+    public HdfsFileContentInfoFactory() {
+        // empty
+    }
+
     /**
      * Creates a FileContentInfo for the given FileContent.
      *

commons-vfs2-hdfs/src/main/java/org/apache/commons/vfs2/provider/hdfs/HdfsFileSystemConfigBuilder.java

@@ -44,6 +44,8 @@ public final class HdfsFileSystemConfigBuilder extends FileSystemConfigBuilder {
     private static final String KEY_CONFIG_CONF = "configConf";
 
     /**
+     * Gets the singleton instance.
+     *
      * @return HdfsFileSystemConfigBuilder instance
      */
     public static HdfsFileSystemConfigBuilder getInstance() {