Program: 189638
Project: 189638
Buggy source:
public void onEnable(){
  instance=this;
  new CreeperConfig(this);
  Logger.getLogger("String_Node_Str").info("String_Node_Str");
  File file=new File(getDataFolder() + "String_Node_Str");
  file.delete();
  logInfo("String_Node_Str",3);
  blockManager=new BlockManager(this);
  new CreeperMessenger(getDataFolder(),this);
  logInfo("String_Node_Str",3);
  commandExecutor=new CreeperCommandManager(this);
  perms=new CreeperPermissionManager(this);
  CommandMap commandMap=null;
  try {
    Field field=SimplePluginManager.class.getDeclaredField("String_Node_Str");
    field.setAccessible(true);
    commandMap=(CommandMap)(field.get(getServer().getPluginManager()));
  }
 catch (  NoSuchFieldException e) {
    e.printStackTrace();
  }
catch (  IllegalAccessException e) {
    e.printStackTrace();
  }
  String[] aliases={"String_Node_Str",CreeperConfig.alias};
  CreeperCommand com=new CreeperCommand(aliases,"String_Node_Str","String_Node_Str",commandExecutor);
  if (commandMap != null)   commandMap.register("String_Node_Str",com);
  handler=new CreeperHandler();
  new CreeperEconomy(this);
  File warningLogFile=new File(getDataFolder() + "String_Node_Str");
  if (!warningLogFile.exists())   try {
    warningLogFile.createNewFile();
  }
 catch (  IOException e) {
    CreeperLog.warning(e.getMessage());
  }
  new CreeperLog(warningLogFile);
  logInfo("String_Node_Str",3);
  int tmp_period=20;
  if (CreeperConfig.blockPerBlock)   tmp_period=CreeperConfig.blockPerBlockInterval;
  if (getServer().getScheduler().scheduleSyncRepeatingTask(this,new Runnable(){
    public void run(){
      ExplodedBlockManager.checkReplace(CreeperConfig.blockPerBlock);
    }
  }
,200,tmp_period) == -1)   CreeperLog.warning("String_Node_Str");
  if (getServer().getScheduler().scheduleSyncRepeatingTask(this,new Runnable(){
    public void run(){
      BurntBlockManager.replaceBurnt();
    }
  }
,200,20) == -1)   CreeperLog.warning("String_Node_Str");
  if (getServer().getScheduler().scheduleAsyncRepeatingTask(this,new Runnable(){
    public void run(){
      cleanMaps();
    }
  }
,200,2000) == -1)   CreeperLog.warning("String_Node_Str");
  logInfo("String_Node_Str",3);
  PluginManager pm=getServer().getPluginManager();
  Plugin lwcPlugin=pm.getPlugin("String_Node_Str");
  if (lwcPlugin != null) {
    lwc=((LWCPlugin)lwcPlugin).getLWC();
    logInfo("String_Node_Str",1);
  }
  Plugin lockettePlugin=pm.getPlugin("String_Node_Str");
  if (lockettePlugin != null) {
    CreeperConfig.lockette=true;
    logInfo("String_Node_Str",1);
  }
  Plugin mobArena=pm.getPlugin("String_Node_Str");
  if (mobArena != null) {
    maHandler=new MobArenaHandler();
    logInfo("String_Node_Str",1);
  }
  Plugin cTrap=pm.getPlugin("String_Node_Str");
  if (cTrap != null) {
    new CreeperTrapHandler(this,(CreeperTrap)cTrap);
    logInfo("String_Node_Str",1);
  }
 else   new CreeperTrapHandler(this);
  factionHandler=new FactionHandler(pm);
  if (factionHandler.isFactionsEnabled()) {
    logInfo("String_Node_Str",1);
  }
  logInfo("String_Node_Str",3);
  pm.registerEvents(listener,this);
  pm.registerEvents(blockListener,this);
  if (!(CreeperConfig.lightweightMode))   pm.registerEvents(fancyListener,this);
  populateWarnList();
  logInfo("String_Node_Str" + getDescription().getVersion() + "String_Node_Str",0);
}

Fixed version (ground truth):
public void onEnable(){
  instance=this;
  File warningLogFile=new File(getDataFolder() + "String_Node_Str");
  if (!warningLogFile.exists())   try {
    warningLogFile.createNewFile();
  }
 catch (  IOException e) {
    Logger.getLogger("String_Node_Str").warning(e.getMessage());
  }
  new CreeperLog(warningLogFile);
  new CreeperConfig(this);
  File file=new File(getDataFolder() + "String_Node_Str");
  file.delete();
  logInfo("String_Node_Str",3);
  blockManager=new BlockManager(this);
  new CreeperMessenger(getDataFolder(),this);
  logInfo("String_Node_Str",3);
  commandExecutor=new CreeperCommandManager(this);
  perms=new CreeperPermissionManager(this);
  CommandMap commandMap=null;
  try {
    Field field=SimplePluginManager.class.getDeclaredField("String_Node_Str");
    field.setAccessible(true);
    commandMap=(CommandMap)(field.get(getServer().getPluginManager()));
  }
 catch (  NoSuchFieldException e) {
    e.printStackTrace();
  }
catch (  IllegalAccessException e) {
    e.printStackTrace();
  }
  String[] aliases={"String_Node_Str",CreeperConfig.alias};
  CreeperCommand com=new CreeperCommand(aliases,"String_Node_Str","String_Node_Str",commandExecutor);
  if (commandMap != null)   commandMap.register("String_Node_Str",com);
  handler=new CreeperHandler();
  new CreeperEconomy(this);
  logInfo("String_Node_Str",3);
  int tmp_period=20;
  if (CreeperConfig.blockPerBlock)   tmp_period=CreeperConfig.blockPerBlockInterval;
  if (getServer().getScheduler().scheduleSyncRepeatingTask(this,new Runnable(){
    public void run(){
      ExplodedBlockManager.checkReplace(CreeperConfig.blockPerBlock);
    }
  }
,200,tmp_period) == -1)   CreeperLog.warning("String_Node_Str");
  if (getServer().getScheduler().scheduleSyncRepeatingTask(this,new Runnable(){
    public void run(){
      BurntBlockManager.replaceBurnt();
    }
  }
,200,20) == -1)   CreeperLog.warning("String_Node_Str");
  if (getServer().getScheduler().scheduleAsyncRepeatingTask(this,new Runnable(){
    public void run(){
      cleanMaps();
    }
  }
,200,2000) == -1)   CreeperLog.warning("String_Node_Str");
  logInfo("String_Node_Str",3);
  PluginManager pm=getServer().getPluginManager();
  Plugin lwcPlugin=pm.getPlugin("String_Node_Str");
  if (lwcPlugin != null) {
    lwc=((LWCPlugin)lwcPlugin).getLWC();
    logInfo("String_Node_Str",1);
  }
  Plugin lockettePlugin=pm.getPlugin("String_Node_Str");
  if (lockettePlugin != null) {
    CreeperConfig.lockette=true;
    logInfo("String_Node_Str",1);
  }
  Plugin mobArena=pm.getPlugin("String_Node_Str");
  if (mobArena != null) {
    maHandler=new MobArenaHandler();
    logInfo("String_Node_Str",1);
  }
  Plugin cTrap=pm.getPlugin("String_Node_Str");
  if (cTrap != null) {
    new CreeperTrapHandler(this,(CreeperTrap)cTrap);
    logInfo("String_Node_Str",1);
  }
 else   new CreeperTrapHandler(this);
  factionHandler=new FactionHandler(pm);
  if (factionHandler.isFactionsEnabled()) {
    logInfo("String_Node_Str",1);
  }
  logInfo("String_Node_Str",3);
  pm.registerEvents(listener,this);
  pm.registerEvents(blockListener,this);
  if (!(CreeperConfig.lightweightMode))   pm.registerEvents(fancyListener,this);
  populateWarnList();
  logInfo("String_Node_Str" + getDescription().getVersion() + "String_Node_Str",0);
}