java - What is @SuppressWarnings("deprecation") and how do I fix it? -

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i following youtube tutorial , came across error.

at line, @suppresswarnings("deprecation") comes up.

player targerplayer = bukkit.getserver().getplayer(args[0]);

here simple healing plugin.

package me.roofer.youtube;  import java.util.logging.logger;  import org.bukkit.bukkit; import org.bukkit.chatcolor; import org.bukkit.command.command; import org.bukkit.command.commandsender; import org.bukkit.entity.player; import org.bukkit.plugin.plugindescriptionfile; import org.bukkit.plugin.java.javaplugin;  public class youtube extends javaplugin {     public static logger logger = logger.getlogger("minecraft");        public static youtube plugin;      @override     public void ondisable() {         plugindescriptionfile pdffile = this.getdescription();         youtube.logger.info(pdffile.getname() + " has been disabled!");     }     @override     public void onenable() {         plugindescriptionfile pdffile = this.getdescription();         youtube.logger.info(pdffile.getname() + " version" + pdffile.getversion() + " has been enabled!");      public boolean oncommand(commandsender sender, command cmd, string commandlabel, string[] args){         @suppresswarnings("unused")         player player = (player) sender;         if(commandlabel.equalsignorecase("heal") || commandlabel.equalsignorecase("h")) {             // heal >> 0 args | heal roofer777 >> 1 arg             if (args.length == 0){                 player.sethealth(20);                 player.sendmessage(chatcolor.red + "healed!");             }else if(args.length == 1){                 @suppresswarnings({"unused", "deprecation"})                 player targerplayer = bukkit.getserver().getplayer(args[0]);                 targetplayer.sethealth(20);             }         }         return false;     } }

that not error. should read on the definition of deprecation.

a program element annotated @deprecated 1 programmers discouraged using, typically because dangerous, or because better alternative exists. compilers warn when deprecated program element used or overridden in non-deprecated code.

the reason why specific method deprecated because bukkit moving on new uuid system, using names not best way player object.


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