Help mass create per ip

[Irrelevant]

hello ..i have a problem . I tried to add the code when admin create mass item only 1window per ip can receive. 
i add this: 

Spoiler

         Collection <L2PcInstance> pls = L2World.getInstance (). getAllPlayers ();
        for (L2PcInstance p: pls)
        {
               final String ip = p.getClient().getConnection().getInetAddress().getHostAddress();

                if (ips.contains(ip))
                 continue;

blablabla

but it doesnt work :/  any help ? 
code hasnt errors, just in game doesnt work :/ 

edit: i use arraylist not hash

Edited February 28, 2021 by Irrelevant

[Irrelevant]

10 minutes ago, Kara said:

 

Ah alright then, i didn't know. For sure you should upgrade to java 8 since scripting engine is still supported and java 8 has some future proof features and it's the current stable java version.

 

I don't see the reason why you stick with Java 7 in 2021. Saying you're lazy and you spend 10 minutes writing in this topic while updating java only take 5.

 

So vouch for java 8 !

 

i had already updated  to java 8 .i just borring to update again( also i believe l2jfrozen db will have lag issues after java8)

Edited March 1, 2021 by Irrelevant