Removed unused variables, imports, empty statements (#1361)

Also some unnecessary whitespace.

airsonic-main/src/main/java/org/airsonic/player/ajax/PlayQueueService.java

@@ -28,8 +28,6 @@ import org.airsonic.player.service.*;
 import org.airsonic.player.service.PlaylistService;
 import org.airsonic.player.util.StringUtil;
 import org.directwebremoting.WebContextFactory;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
 import org.springframework.web.servlet.support.RequestContextUtils;
@@ -82,8 +80,6 @@ public class PlayQueueService {
     @Autowired
     private InternetRadioService internetRadioService;
 
-    private static final Logger LOG = LoggerFactory.getLogger(PlayQueueService.class);
-
     /**
      * Returns the play queue for the player of the current user.
      *
@@ -382,7 +378,6 @@ public class PlayQueueService {
         HttpServletRequest request = WebContextFactory.get().getHttpServletRequest();
         HttpServletResponse response = WebContextFactory.get().getHttpServletResponse();
         String username = securityService.getCurrentUsername(request);
-        UserSettings userSettings = settingsService.getUserSettings(securityService.getCurrentUsername(request));
 
         MusicFolder selectedMusicFolder = settingsService.getSelectedMusicFolder(username);
         List<MusicFolder> musicFolders = settingsService.getMusicFoldersForUser(username,
@@ -664,8 +659,6 @@ public class PlayQueueService {
 
     private PlayQueueInfo convert(HttpServletRequest request, Player player, boolean serverSidePlaylist, int offset) {
 
-        String url = NetworkService.getBaseUrl(request);
-        Locale locale = RequestContextUtils.getLocale(request);
         PlayQueue playQueue = player.getPlayQueue();
 
         List<PlayQueueInfo.Entry> entries;

airsonic-main/src/main/java/org/airsonic/player/controller/ImportPlaylistController.java

@@ -76,7 +76,6 @@ public class ImportPlaylistController {
                         }
                         String playlistName = FilenameUtils.getBaseName(item.getName());
                         String fileName = FilenameUtils.getName(item.getName());
-                        String format = StringUtils.lowerCase(FilenameUtils.getExtension(item.getName()));
                         String username = securityService.getCurrentUsername(request);
                         Playlist playlist = playlistService.importPlaylist(username, playlistName, fileName,
                                 item.getInputStream(), null);

airsonic-main/src/main/java/org/airsonic/player/controller/InternetRadioSettingsController.java

@@ -64,7 +64,6 @@ public class InternetRadioSettingsController {
     public String doPost(HttpServletRequest request, RedirectAttributes redirectAttributes) {
 
         String error = handleParameters(request);
-        Map<String, Object> map = new HashMap<>();
         if (error == null) {
             redirectAttributes.addFlashAttribute("settings_toast", true);
             redirectAttributes.addFlashAttribute("settings_reload", true);

airsonic-main/src/main/java/org/airsonic/player/io/ShoutCastOutputStream.java

@@ -23,8 +23,6 @@ import org.airsonic.player.domain.MediaFile;
 import org.airsonic.player.domain.PlayQueue;
 import org.airsonic.player.service.SettingsService;
 import org.apache.commons.lang.StringUtils;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 
 import java.io.IOException;
 import java.io.OutputStream;
@@ -40,8 +38,6 @@ import java.nio.charset.StandardCharsets;
  */
 public class ShoutCastOutputStream extends OutputStream {
 
-    private static final Logger LOG = LoggerFactory.getLogger(ShoutCastOutputStream.class);
-
     /**
      * Number of bytes between each SHOUTcast metadata block.
      */

airsonic-main/src/main/java/org/airsonic/player/service/SettingsService.java

@@ -168,7 +168,6 @@ public class SettingsService {
     private static final int DEFAULT_PODCAST_EPISODE_DOWNLOAD_COUNT = 1;
     private static final long DEFAULT_DOWNLOAD_BITRATE_LIMIT = 0;
     private static final long DEFAULT_UPLOAD_BITRATE_LIMIT = 0;
-    private static final boolean DEFAULT_ENABLE_SEEK = true;
     private static final String DEFAULT_DOWNSAMPLING_COMMAND = "ffmpeg -i %s -map 0:0 -b:a %bk -v 0 -f mp3 -";
     private static final String DEFAULT_HLS_COMMAND = "ffmpeg -ss %o -t %d -i %s -async 1 -b:v %bk -s %wx%h -ar 44100 -ac 2 -v 0 -f mpegts -c:v libx264 -preset superfast -c:a libmp3lame -threads 0 -";
     private static final String DEFAULT_JUKEBOX_COMMAND = "ffmpeg -ss %o -i %s -map 0:0 -v 0 -ar 44100 -ac 2 -f s16be -";

airsonic-main/src/main/java/org/airsonic/player/service/search/DocumentFactory.java

@@ -85,8 +85,6 @@ public class DocumentFactory {
 
     }
 
-    ;
-
     private BiConsumer<@NonNull Document, @NonNull Integer> fieldId = (doc, value) -> {
         doc.add(new StoredField(FieldNames.ID, Integer.toString(value), TYPE_ID));
     };
@@ -129,19 +127,19 @@ public class DocumentFactory {
 
     public final Term createPrimarykey(Integer id) {
         return new Term(FieldNames.ID, Integer.toString(id));
-    };
+    }
 
     public final Term createPrimarykey(Album album) {
         return createPrimarykey(album.getId());
-    };
+    }
 
     public final Term createPrimarykey(Artist artist) {
         return createPrimarykey(artist.getId());
-    };
+    }
 
     public final Term createPrimarykey(MediaFile mediaFile) {
         return createPrimarykey(mediaFile.getId());
-    };
+    }
 
     /**
      * Create a document.

airsonic-main/src/main/java/org/airsonic/player/service/search/QueryFactory.java

@@ -141,8 +141,7 @@ public class QueryFactory {
         }
 
         return mainQuery.build();
-
-    };
+    }
 
     /*
      * XXX 3.x -> 8.x :
@@ -178,7 +177,6 @@ public class QueryFactory {
         mainQuery.add(folderQuery, Occur.MUST);
 
         return mainQuery.build();
-
     }
 
     /**
@@ -213,7 +211,6 @@ public class QueryFactory {
         query.add(toFolderQuery.apply(false, criteria.getMusicFolders()), Occur.MUST);
 
         return query.build();
-
     }
 
     /**
@@ -255,7 +252,6 @@ public class QueryFactory {
         }
 
         return mainQuery.build();
-
     }
 
     /**
@@ -283,5 +279,4 @@ public class QueryFactory {
                 .add(toFolderQuery.apply(true, musicFolders), Occur.SHOULD)
                 .build();
     }
-
 }