Jail

import java.io.*;
import java.util.logging.Logger;


public class Jail extends Plugin
{
      String name = "jail";
      String version = "1.0";
      String author = " Spenk";
      static Logger log = Logger.getLogger("Minecraft");
        JailSet js = new JailSet();
        JailDel jd = new JailDel();
        JailWand jw = new JailWand();
        JailListener jl = new JailListener();
        JailProps props = new JailProps();


public void initialize(){
log.info(this.name +" version "+ this.version + " by " +this.author+(" is initialized!"));
etc.getLoader().addListener(PluginLoader.Hook.COMMAND, js, this, PluginListener.Priority.MEDIUM);
etc.getLoader().addListener(PluginLoader.Hook.COMMAND, jd, this, PluginListener.Priority.MEDIUM);
etc.getLoader().addListener(PluginLoader.Hook.COMMAND, jw, this, PluginListener.Priority.MEDIUM);
etc.getLoader().addListener(PluginLoader.Hook.COMMAND, jl, this, PluginListener.Priority.MEDIUM);
etc.getLoader().addListener(PluginLoader.Hook.BLOCK_RIGHTCLICKED, jw, this, PluginListener.Priority.MEDIUM);
File f = new File("plugins/config");
f.mkdir();
File f1 = new File("plugins/config/Jail");
f1.mkdir();
File f2 = new File("plugins/config/Jail/Jailes");
f2.mkdir();
props.load();
if (!new File("plugins/config/Jail/Jails.properties").exists()) {
    new PropertiesFile("plugins/config/Jail/Jails.properties");
}
Writer writer = null;
File filename;
try {
filename = new File("config/groups.txt");
writer = new BufferedWriter(new FileWriter(filename, true));
if (!isInList(props.group)){
    writer.write("\n"+props.group);
}else{
    return;
}
} catch (FileNotFoundException e) {
    log.info("[ERROR] Groups File not found.");
    return;
} catch (IOException e) {
        log.info("[ERROR] File IOException Found o.O");
        return;
} finally {
    try {
        if (writer != null) {
            writer.close();
        }
    } catch (IOException e) {
        log.info("[ERROR] File IOException Found o.O");
        return;
    }
}
}
public void enable(){
    log.info(this.name + " version " + this.version + " by " + this.author + " is enabled!");
}

public void disable(){
    log.info(this.name + " version " + this.version + " is disabled!");
}

public boolean isInList(String playername) {
    try {
      BufferedReader in = new BufferedReader(new FileReader("config/groups.txt"));
      String line = in.readLine();
      while (line != null) {
        if (line.equalsIgnoreCase(props.group)) {
          in.close();
          return true;
        }
        line = in.readLine();
      }
      in.close();
    } catch (IOException localIOException) {
    }
    return false; }
}