Add interaction related message flags

src/main/java/net/dv8tion/jda/api/entities/Message.java

@@ -2476,6 +2476,27 @@ default MessageAction reply(@Nonnull byte[] data, @Nonnull String name, @Nonnull
     @Nonnull
     EnumSet<MessageFlag> getFlags();
 
+    /**
+     * Returns the raw message flags of this message
+     * 
+     * @throws java.lang.UnsupportedOperationException
+     *         If this is a system message
+     * @return The raw message flags
+     * @see    #getFlags()
+     */
+    long getFlagsRaw();
+
+    /**
+     * Whether this message is ephemeral.
+     * <br>The message being ephemeral means it is only visible to the bot and the interacting user
+     * <br>This is a shortcut method for checking if {@link #getFlags()} contains {@link MessageFlag#EPHEMERAL}
+     * 
+     * @throws java.lang.UnsupportedOperationException
+     *         If this is a system message
+     * @return Whether the message is ephemeral
+     */
+    boolean isEphemeral();
+
     /**
      * This specifies the {@link net.dv8tion.jda.api.entities.MessageType MessageType} of this Message.
      *
@@ -2583,7 +2604,16 @@ enum MessageFlag
         /**
          * Indicates, that this Message came from the urgent message system
          */
-        URGENT(4);
+        URGENT(4),
+        /**
+         * Indicates, that this Message is ephemeral, the Message is only visible to the bot and the interacting user
+         * @see Message#isEphemeral
+         */
+        EPHEMERAL(6),
+        /**
+         * Indicates, that this Message is an interaction response and the bot is "thinking"
+         */
+        LOADING(7);
 
         private final int value;
 

src/main/java/net/dv8tion/jda/api/events/interaction/GenericComponentInteractionCreateEvent.java

@@ -72,7 +72,7 @@ public Component getComponent()
         return interaction.getComponent();
     }
 
-    @Nullable
+    @Nonnull
     @Override
     public Message getMessage()
     {

src/main/java/net/dv8tion/jda/api/interactions/components/ButtonInteraction.java

@@ -53,7 +53,6 @@ default Button getComponent()
 
     /**
      * Update the button with a new button instance.
-     * <br>This only works for non-ephemeral messages where {@link #getMessage()} is available!
      *
      * <p>If this interaction is already acknowledged this will use {@link #getHook()}
      * and otherwise {@link #editComponents(Collection)} directly to acknowledge the interaction.
@@ -71,8 +70,6 @@ default Button getComponent()
     default RestAction<Void> editButton(@Nullable Button newButton)
     {
         Message message = getMessage();
-        if (message == null)
-            throw new IllegalStateException("Cannot update button for ephemeral messages! Discord does not provide enough information to perform the update.");
         List<ActionRow> components = new ArrayList<>(message.getActionRows());
         ComponentLayout.updateComponent(components, getComponentId(), newButton);
 

src/main/java/net/dv8tion/jda/api/interactions/components/ComponentInteraction.java

@@ -62,11 +62,10 @@ public interface ComponentInteraction extends Interaction
 
     /**
      * The {@link Message} instance.
-     * <br>This is null on interactions for ephemeral messages.
      *
-     * @return The {@link Message}, or null if this message is ephemeral
+     * @return The {@link Message}
      */
-    @Nullable
+    @Nonnull
     Message getMessage();
 
     /**

src/main/java/net/dv8tion/jda/api/interactions/components/selections/SelectionMenuInteraction.java

@@ -85,7 +85,6 @@ default List<SelectOption> getSelectedOptions()
 
     /**
      * Update the selection menu with a new selection menu instance.
-     * <br>This only works for non-ephemeral messages where {@link #getMessage()} is available!
      *
      * <p>If this interaction is already acknowledged this will use {@link #getHook()}
      * and otherwise {@link #editComponents(Collection)} directly to acknowledge the interaction.
@@ -106,8 +105,6 @@ default List<SelectOption> getSelectedOptions()
     default RestAction<Void> editSelectionMenu(@Nullable SelectionMenu newMenu)
     {
         Message message = getMessage();
-        if (message == null)
-            throw new IllegalStateException("Cannot update selection menu for ephemeral messages! Discord does not provide enough information to perform the update.");
         List<ActionRow> components = new ArrayList<>(message.getActionRows());
         ComponentLayout.updateComponent(components, getComponentId(), newMenu);
 

src/main/java/net/dv8tion/jda/internal/entities/AbstractMessage.java

@@ -597,6 +597,20 @@ public EnumSet<MessageFlag> getFlags()
         return null;
     }
 
+    @Override
+    public long getFlagsRaw()
+    {
+        unsupported();
+        return 0;
+    }
+
+    @Override
+    public boolean isEphemeral()
+    {
+        unsupported();
+        return false;
+    }
+
     @Nonnull
     @Override
     public MessageType getType()

src/main/java/net/dv8tion/jda/internal/entities/ReceivedMessage.java

@@ -148,20 +148,29 @@ public boolean isPinned()
     @Override
     public RestAction<Void> pin()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot pin this message as it is ephemeral.");
+
         return channel.pinMessageById(getId());
     }
 
     @Nonnull
     @Override
     public RestAction<Void> unpin()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot unpin this message as it is ephemeral.");
+
         return channel.unpinMessageById(getId());
     }
 
     @Nonnull
     @Override
     public RestAction<Void> addReaction(@Nonnull Emote emote)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot add reactions on this message as it is ephemeral.");
+
         Checks.notNull(emote, "Emote");
 
         boolean missingReaction = reactions.stream()
@@ -181,13 +190,18 @@ public RestAction<Void> addReaction(@Nonnull Emote emote)
     @Override
     public RestAction<Void> addReaction(@Nonnull String unicode)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot react on this message as it is ephemeral.");
+
         return channel.addReactionById(getId(), unicode);
     }
 
     @Nonnull
     @Override
     public RestAction<Void> clearReactions()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot clear reactions on this message as it is ephemeral.");
         if (!isFromGuild())
             throw new IllegalStateException("Cannot clear reactions from a message in a Group or PrivateChannel.");
         return getTextChannel().clearReactionsById(getId());
@@ -197,6 +211,8 @@ public RestAction<Void> clearReactions()
     @Override
     public RestAction<Void> clearReactions(@Nonnull String unicode)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot clear reactions on this message as it is ephemeral.");
         if (!isFromGuild())
             throw new IllegalStateException("Cannot clear reactions from a message in a Group or PrivateChannel.");
         return getTextChannel().clearReactionsById(getId(), unicode);
@@ -206,6 +222,8 @@ public RestAction<Void> clearReactions(@Nonnull String unicode)
     @Override
     public RestAction<Void> clearReactions(@Nonnull Emote emote)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot clear reactions on this message as it is ephemeral.");
         if (!isFromGuild())
             throw new IllegalStateException("Cannot clear reactions from a message in a Group or PrivateChannel.");
         return getTextChannel().clearReactionsById(getId(), emote);
@@ -215,6 +233,9 @@ public RestAction<Void> clearReactions(@Nonnull Emote emote)
     @Override
     public RestAction<Void> removeReaction(@Nonnull Emote emote)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot remove reactions on this message as it is ephemeral.");
+
         return channel.removeReactionById(getId(), emote);
     }
 
@@ -223,6 +244,10 @@ public RestAction<Void> removeReaction(@Nonnull Emote emote)
     public RestAction<Void> removeReaction(@Nonnull Emote emote, @Nonnull User user)
     {
         Checks.notNull(user, "User");  // to prevent NPEs
+
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot remove reactions on this message as it is ephemeral.");
+
         // check if the passed user is the SelfUser, then the ChannelType doesn't matter and
         // we can safely remove that
         if (user.equals(getJDA().getSelfUser()))
@@ -237,6 +262,9 @@ public RestAction<Void> removeReaction(@Nonnull Emote emote, @Nonnull User user)
     @Override
     public RestAction<Void> removeReaction(@Nonnull String unicode)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot remove reactions on this message as it is ephemeral.");
+
         return channel.removeReactionById(getId(), unicode);
     }
 
@@ -248,6 +276,8 @@ public RestAction<Void> removeReaction(@Nonnull String unicode, @Nonnull User us
         if (user.equals(getJDA().getSelfUser()))
             return channel.removeReactionById(getIdLong(), unicode);
 
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot remove reactions on this message as it is ephemeral.");
         if (!isFromGuild())
             throw new IllegalStateException("Cannot remove reactions of others from a message in a Group or PrivateChannel.");
         return getTextChannel().removeReactionById(getId(), unicode, user);
@@ -257,13 +287,19 @@ public RestAction<Void> removeReaction(@Nonnull String unicode, @Nonnull User us
     @Override
     public ReactionPaginationAction retrieveReactionUsers(@Nonnull Emote emote)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot retrieve reactions on this message as it is ephemeral.");
+
         return channel.retrieveReactionUsersById(id, emote);
     }
 
     @Nonnull
     @Override
     public ReactionPaginationAction retrieveReactionUsers(@Nonnull String unicode)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot retrieve reactions on this message as it is ephemeral.");
+
         return channel.retrieveReactionUsersById(id, unicode);
     }
 
@@ -311,6 +347,9 @@ public long getIdLong()
     @Override
     public String getJumpUrl()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot get the jump URL on this message as it is ephemeral.");
+
         return String.format("https://discord.com/channels/%s/%s/%s", isFromGuild() ? getGuild().getId() : "@me", getChannel().getId(), getId());
     }
 
@@ -856,6 +895,9 @@ private void checkUser()
     @Override
     public AuditableRestAction<Void> delete()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot delete this message as it is ephemeral.");
+
         if (!getJDA().getSelfUser().equals(getAuthor()))
         {
             if (isFromType(ChannelType.PRIVATE))
@@ -873,6 +915,9 @@ else if (!getGuild().getSelfMember()
     @Override
     public AuditableRestAction<Void> suppressEmbeds(boolean suppressed)
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot suppress embeds on this message as it is ephemeral.");
+
         if (!getJDA().getSelfUser().equals(getAuthor()))
         {
             if (isFromType(ChannelType.PRIVATE))
@@ -895,6 +940,9 @@ else if (!getGuild().getSelfMember().hasPermission(getTextChannel(), Permission.
     @Override
     public RestAction<Message> crosspost()
     {
+        if (isEphemeral())
+            throw new IllegalStateException("Cannot suppress embeds on this message as it is ephemeral.");
+
         if (getFlags().contains(MessageFlag.CROSSPOSTED))
             return new CompletedRestAction<>(getJDA(), this);
         TextChannel textChannel = getTextChannel();
@@ -918,6 +966,18 @@ public EnumSet<MessageFlag> getFlags()
         return MessageFlag.fromBitField(flags);
     }
 
+    @Override
+    public long getFlagsRaw()
+    {
+        return flags;
+    }
+
+    @Override
+    public boolean isEphemeral()
+    {
+        return (this.flags & MessageFlag.EPHEMERAL.getValue()) != 0;
+    }
+
     @Override
     public boolean equals(Object o)
     {

src/main/java/net/dv8tion/jda/internal/interactions/ComponentInteractionImpl.java

@@ -24,7 +24,6 @@
 import net.dv8tion.jda.internal.requests.restaction.interactions.UpdateInteractionActionImpl;
 
 import javax.annotation.Nonnull;
-import javax.annotation.Nullable;
 
 public abstract class ComponentInteractionImpl extends InteractionImpl implements ComponentInteraction
 {
@@ -58,7 +57,7 @@ public String getComponentId()
         return customId;
     }
 
-    @Nullable
+    @Nonnull
     @Override
     public Message getMessage()
     {