Fixes max team size checks.

Fixes #2034

Author: tastybento

src/main/java/world/bentobox/bentobox/api/commands/island/team/IslandTeamInviteAcceptCommand.java

@@ -157,7 +157,7 @@ private void acceptTeamInvite(User user, Invite invite) {
             user.sendMessage(INVALID_INVITE);
             return;
         }
-        if (teamIsland.getMemberSet(RanksManager.MEMBER_RANK, true).size() > getIslands().getMaxMembers(teamIsland, RanksManager.MEMBER_RANK)) {
+        if (teamIsland.getMemberSet(RanksManager.MEMBER_RANK, true).size() >= getIslands().getMaxMembers(teamIsland, RanksManager.MEMBER_RANK)) {
             user.sendMessage("commands.island.team.invite.errors.island-is-full");
             return;
         }

src/main/java/world/bentobox/bentobox/api/commands/island/team/IslandTeamInviteCommand.java

@@ -51,9 +51,9 @@ public boolean canExecute(User user, String label, List<String> args) {
                 Invite invite = itc.getInvite(playerUUID);
                 String name = getPlayers().getName(playerUUID);
                 switch (invite.getType()) {
-                    case COOP -> user.sendMessage("commands.island.team.invite.name-has-invited-you.coop", TextVariables.NAME, name);
-                    case TRUST -> user.sendMessage("commands.island.team.invite.name-has-invited-you.trust", TextVariables.NAME, name);
-                    default -> user.sendMessage("commands.island.team.invite.name-has-invited-you", TextVariables.NAME, name);
+                case COOP -> user.sendMessage("commands.island.team.invite.name-has-invited-you.coop", TextVariables.NAME, name);
+                case TRUST -> user.sendMessage("commands.island.team.invite.name-has-invited-you.trust", TextVariables.NAME, name);
+                default -> user.sendMessage("commands.island.team.invite.name-has-invited-you", TextVariables.NAME, name);
                 }
                 return true;
             }
@@ -69,7 +69,7 @@ public boolean canExecute(User user, String label, List<String> args) {
             return false;
         }
         // Check for space on team
-        if (island.getMemberSet().size() > getIslands().getMaxMembers(island, RanksManager.MEMBER_RANK)) {
+        if (island.getMemberSet().size() >= getIslands().getMaxMembers(island, RanksManager.MEMBER_RANK)) {
             user.sendMessage("commands.island.team.invite.errors.island-is-full");
             return false;
         }

src/main/java/world/bentobox/bentobox/managers/IslandsManager.java

@@ -490,6 +490,8 @@ public Set<UUID> getMembers(@NonNull World world, @NonNull UUID playerUUID) {
      * Gets the maximum number of island members allowed on this island.
      * Will update the value based on world settings or island owner permissions (if online).
      * If the island is unowned, then this value will be 0.
+     * The number given for MEMBER_RANK is meant to include this rank and higher, e.g. {@link RanksManager#SUB_OWNER_RANK}
+     * and {@link RanksManager#OWNER_RANK}
      * @param island - island
      * @param rank {@link RanksManager#MEMBER_RANK}, {@link RanksManager#COOP_RANK}, or {@link RanksManager#TRUSTED_RANK}
      * @return max number of members. If negative, then this means unlimited.