Program: 84928
Project: 84928
Buggy source:
public void incHealth(int _h,Player attacker,int reason,ownable ks){
  if (_h < 0 && h < 2) {
    regens++;
    s.maxStat(Stat.LIFE_REGENS,regens);
  }
  if (_h < 0 || inv == false) {
    h-=_h;
    if (h > 2) {
      h=2;
    }
    if (_h > 0) {
      htime=new Date().getTime() + 10000;
      stime=new Date().getTime() + 5000;
    }
    if (h <= 0) {
      regens=0;
      lastk_count=0;
      lastk_top_count=0;
      hshot_streak=0;
      melee_streak=0;
      player a=plugin.p(attacker);
      if (a != this) {
        a.onKill(this,reason);
      }
 else {
        kill--;
      }
      String assist_txt="String_Node_Str";
      if (assist != null && assist != attacker) {
        assist_txt=plugin.d + "String_Node_Str" + plugin.d+ plugin.p(assist).getTeam().getColour()+ plugin.p(assist).nick+ plugin.d+ "String_Node_Str";
        plugin.p(assist).assists++;
        plugin.p(assist).s.incStat(Stat.ASSISTS);
        plugin.p(assist).addPoints(2);
      }
      s.incStat(Stat.DEATHS);
      death++;
      s.maxStat(Stat.MAX_DEATHS,death);
      streak=0;
      h=2;
      int ammo=0;
      for (      ItemStack i : p.getInventory().getContents()) {
        if (i != null) {
          if (i.getType() == Material.FEATHER || i.getType() == Material.ARROW) {
            ammo+=i.getAmount();
          }
        }
      }
      ammo=(int)(ammo / 15);
      setStreaks();
      String desc="String_Node_Str";
      String as="String_Node_Str";
switch (reason) {
case 0:
        plugin.game.sendMessage(team.BOTH,plugin.d + "String_Node_Str" + plugin.p(p).nick+ "String_Node_Str"+ assist_txt);
      plugin.p(p).s.incStat(Stat.FALL_DEATHS);
    break;
case 1:
  desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.KNIFE_DEATHS);
plugin.p(attacker).s.incStat(Stat.KNIFE_KILLS);
break;
case 2:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.BOW_DEATHS);
plugin.p(attacker).s.incStat(Stat.BOW_KILLS);
break;
case 3:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.CLAYMORE_DEATHS);
plugin.p(attacker).s.incStat(Stat.CLAYMORE_KILLS);
break;
case 4:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.DOG_DEATHS);
plugin.p(attacker).s.incStat(Stat.DOG_KILLS);
break;
case 5:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.SENTRY_DEATHS);
plugin.p(attacker).s.incStat(Stat.SENTRY_KILLS);
break;
case 6:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.CHOPPER_DEATHS);
plugin.p(attacker).s.incStat(Stat.CHOPPER_KILLS);
break;
case 7:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.BOW_DEATHS);
plugin.p(attacker).s.incStat(Stat.HEADSHOTS);
plugin.p(attacker).s.incStat(Stat.BOW_KILLS);
break;
}
if (reason > 0) {
plugin.game.sendMessage(team.BOTH,plugin.d + plugin.p(attacker).getTeam().getColour() + plugin.p(attacker).nick+ as+ plugin.d+ "String_Node_Str"+ desc+ "String_Node_Str"+ plugin.d+ t.getColour()+ nick+ assist_txt);
}
if (ks != null) {
ks.incKills();
}
clearinv();
todrop+=ammo;
dropl=p.getLocation();
plugin.game.onKill(plugin.p(attacker),this,p.getLocation());
p.teleport(plugin.prespawn);
dead=true;
}
if (_h > 0) {
assist=attacker;
}
}
 else {
h=2;
}
p.setHealth(h * 10);
}

Fixed version (ground truth):
public void incHealth(int _h,Player attacker,int reason,Object ks){
  if (_h < 0 && h < 2) {
    regens++;
    s.maxStat(Stat.LIFE_REGENS,regens);
  }
  if (_h < 0 || inv == false) {
    h-=_h;
    if (h > 2) {
      h=2;
    }
    if (_h > 0) {
      htime=new Date().getTime() + 10000;
      stime=new Date().getTime() + 5000;
    }
    if (h <= 0) {
      regens=0;
      lastk_count=0;
      lastk_top_count=0;
      hshot_streak=0;
      melee_streak=0;
      player a=plugin.p(attacker);
      if (a != this) {
        a.onKill(this,reason,ks);
      }
 else {
        kill--;
      }
      String assist_txt="String_Node_Str";
      if (assist != null && assist != attacker) {
        assist_txt=plugin.d + "String_Node_Str" + plugin.d+ plugin.p(assist).getTeam().getColour()+ plugin.p(assist).nick+ plugin.d+ "String_Node_Str";
        plugin.p(assist).assists++;
        plugin.p(assist).s.incStat(Stat.ASSISTS);
        plugin.p(assist).addPoints(2);
      }
      s.incStat(Stat.DEATHS);
      death++;
      s.maxStat(Stat.MAX_DEATHS,death);
      streak=0;
      h=2;
      int ammo=0;
      for (      ItemStack i : p.getInventory().getContents()) {
        if (i != null) {
          if (i.getType() == Material.FEATHER || i.getType() == Material.ARROW) {
            ammo+=i.getAmount();
          }
        }
      }
      ammo=(int)(ammo / 15);
      setStreaks();
      String desc="String_Node_Str";
      String as="String_Node_Str";
switch (reason) {
case 0:
        plugin.game.sendMessage(team.BOTH,plugin.d + "String_Node_Str" + plugin.p(p).nick+ "String_Node_Str"+ assist_txt);
      plugin.p(p).s.incStat(Stat.FALL_DEATHS);
    break;
case 1:
  desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.KNIFE_DEATHS);
plugin.p(attacker).s.incStat(Stat.KNIFE_KILLS);
break;
case 2:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.BOW_DEATHS);
plugin.p(attacker).s.incStat(Stat.BOW_KILLS);
break;
case 3:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.CLAYMORE_DEATHS);
plugin.p(attacker).s.incStat(Stat.CLAYMORE_KILLS);
break;
case 4:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.DOG_DEATHS);
plugin.p(attacker).s.incStat(Stat.DOG_KILLS);
break;
case 5:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.SENTRY_DEATHS);
plugin.p(attacker).s.incStat(Stat.SENTRY_KILLS);
break;
case 6:
as="String_Node_Str";
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.CHOPPER_DEATHS);
plugin.p(attacker).s.incStat(Stat.CHOPPER_KILLS);
break;
case 7:
desc="String_Node_Str";
plugin.p(p).s.incStat(Stat.BOW_DEATHS);
plugin.p(attacker).s.incStat(Stat.HEADSHOTS);
plugin.p(attacker).s.incStat(Stat.BOW_KILLS);
break;
}
if (reason > 0) {
plugin.game.sendMessage(team.BOTH,plugin.d + plugin.p(attacker).getTeam().getColour() + plugin.p(attacker).nick+ as+ plugin.d+ "String_Node_Str"+ desc+ "String_Node_Str"+ plugin.d+ t.getColour()+ nick+ assist_txt);
}
if (ks != null && ks instanceof ownable) {
((ownable)ks).incKills();
}
clearinv();
todrop+=ammo;
dropl=p.getLocation();
plugin.game.onKill(plugin.p(attacker),this,p.getLocation());
p.teleport(plugin.prespawn);
dead=true;
}
if (_h > 0) {
assist=attacker;
}
}
 else {
h=2;
}
p.setHealth(h * 10);
}