Java index out of bounds error -


i writing code in java plugin minecraft server, logical principles general in nature.

public void doreviewmember(commandsender playersent) {     if (!reviewsmember.isempty()) {         review dothis = null;          arraylist<review> players = new arraylist<review>();         arraylist<review> playersvip = new arraylist<review>();         arraylist<review> playersvipplus = new arraylist<review>();          (int c1 = 0; c1 < reviewsmember.size(); c1++) {             if  (bukkit.getplayer(reviewsmember.get(c1).getname()).haspermission("reviewplugin.vipplus"))                 playersvipplus.add(reviewsmember.get(c1));             else if (bukkit.getplayer(reviewsmember.get(c1).getname()).haspermission("reviewplugin.vip"))                 playersvip.add(reviewsmember.get(c1));             else players.add(reviewsmember.get(c1));         }          if (playersvipplus.size() > 0)             dothis = playersvipplus.get(0);         else if (playersvip.size() > 0)             dothis = playersvip.get(0);         else dothis = players.get(0);          bukkit.getplayer(playersent.getname()).sendmessage("§4[§6reviewplugin§4] §ethis review §b" + dothis.getname());         bukkit.getplayer(playersent.getname()).teleport(dothis.getlocation());         reviewsmember.remove(dothis);         if (reviewsmember.size() > 1)             bukkit.getplayer(playersent.getname()).sendmessage("§4[§6reviewplugin§4] §ethere " + reviewsmember.size() + " member reviews left do.");         else if (reviewsmember.size() == 1)             bukkit.getplayer(playersent.getname()).sendmessage("§4[§6reviewplugin§4] §ethere " + reviewsmember.size() + " member review left do.");         else             bukkit.getplayer(playersent.getname()).sendmessage("§4[§6reviewplugin§4] §ethere no more member reviews @ time!");     }     else {         bukkit.getplayer(playersent.getname()).sendmessage("§4[§6reviewplugin§4] §ethere no more member reviews @ time!");     } }

the index out of bounds error occurring in loop, have no idea going wrong. tested w/o error on windows 8 machine when implemented linux failed every time index out of bounds error.

the above code cannot fail unless background thread modifies array in middle of loop. reason problem.


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