Applied spotless + added documentation to the class and constructor

Also fixed an empty @return in the Javadoc

Author: Tais993

application/src/main/java/org/togetherjava/tjbot/commands/moderation/WhoIsCommand.java

@@ -12,8 +12,6 @@
 import net.dv8tion.jda.api.interactions.components.ButtonStyle;
 import net.dv8tion.jda.api.requests.restaction.interactions.ReplyAction;
 import org.jetbrains.annotations.NotNull;
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
 import org.togetherjava.tjbot.commands.SlashCommandAdapter;
 import org.togetherjava.tjbot.commands.SlashCommandVisibility;
 
@@ -26,14 +24,20 @@
 import java.util.Objects;
 import java.util.stream.Collectors;
 
+/**
+ * You ever wanted to stalk someone on Discord? Well no need to worry anymore! I got you covered,
+ * this command allows you to look up user (or member) info.
+ */
+@SuppressWarnings("ClassWithoutLogger")
 public final class WhoIsCommand extends SlashCommandAdapter {
-    private static final Logger logger = LoggerFactory.getLogger(WhoIsCommand.class);
-
     private static final String USER_OPTION = "user";
     private static final String SHOW_SERVER_SPECIFIC_INFO = "show_server_specific_info";
     private static final DateTimeFormatter DATE_TIME_FORMAT =
             DateTimeFormatter.ofPattern("E, MMMM d, u, HH:mm:ss");
 
+    /**
+     * Creates an instance of who is command
+     */
     public WhoIsCommand() {
         super("whois", "Provides info about the given user", SlashCommandVisibility.GUILD);
 
@@ -138,17 +142,24 @@ public void onSlashCommand(@NotNull final SlashCommandEvent event) {
      * @param user the {@link User} getting whois'd
      * @param profile the {@link net.dv8tion.jda.api.entities.User.Profile} of the whois'd user
      * @param effectiveColor the {@link Color} that the embed will become
-     * @return
+     * @return the generated {@link EmbedBuilder}
      */
     private static @NotNull EmbedBuilder generateEmbedBuilder(
             @NotNull final SlashCommandEvent event, @NotNull final User user,
             final @NotNull User.Profile profile, final Color effectiveColor) {
-        return new EmbedBuilder().setThumbnail(user.getEffectiveAvatarUrl())
+
+
+        EmbedBuilder embedBuilder = new EmbedBuilder().setThumbnail(user.getEffectiveAvatarUrl())
             .setColor(effectiveColor)
-            .setImage(profile.getBannerUrl() + "?size=4096")
             .setFooter("Requested by " + event.getUser().getAsTag(),
                     event.getMember().getEffectiveAvatarUrl())
             .setTimestamp(Instant.now());
+
+        if (null != profile.getBannerId()) {
+            embedBuilder.setImage(profile.getBannerUrl() + "?size=4096");
+        }
+
+        return embedBuilder;
     }
 
     /**