Program: 153663
Project: 153663
Buggy source:
public void onEnable(){
  log=Logger.getLogger("String_Node_Str");
  protectedUsers=new ArrayList<String>();
  loadData();
  if (debug)   log.info("String_Node_Str");
  if (ircEnable)   irc.prepIRC();
  if (debug)   log.info("String_Node_Str");
  loadTips();
  if (debug)   log.info("String_Node_Str");
  startTipsTimer();
  if (debug)   log.info("String_Node_Str");
  this.blogger=new managerBlockLog(this.mysql.getConnection(),this.mysql.servnum());
  if (debug)   log.info("String_Node_Str");
  new Thread(blogger).start();
  if (debug)   log.info("String_Node_Str");
  PluginManager pm=getServer().getPluginManager();
  pm.registerEvent(Event.Type.PLAYER_COMMAND,plrlisCommands,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_CHAT,plrlisChat,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_QUIT,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_ITEM,plrlisItem,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_CANBUILD,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_DAMAGED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_BREAK,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_PLACED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_IGNITE,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_RIGHTCLICKED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.SIGN_CHANGE,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.ENTITY_EXPLODE,entityListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.ENTITY_DAMAGED,entityListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_LOGIN,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_QUIT,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_JOIN,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_KICK,plrlisJoinQuit,Priority.Normal,this);
  if (debug)   log.info("String_Node_Str");
  PluginDescriptionFile pdfFile=this.getDescription();
  System.out.println(pdfFile.getName() + "String_Node_Str" + pdfFile.getVersion()+ "String_Node_Str");
}

Fixed version (ground truth):
public void onEnable(){
  log=Logger.getLogger("String_Node_Str");
  protectedUsers=new ArrayList<String>();
  loadData();
  if (debug)   log.info("String_Node_Str");
  if (ircEnable)   irc.prepIRC();
  if (debug)   log.info("String_Node_Str");
  loadTips();
  if (debug)   log.info("String_Node_Str");
  startTipsTimer();
  if (debug)   log.info("String_Node_Str");
  this.blogger=new managerBlockLog(this.mysql.getConnection(),this.mysql.servnum());
  if (debug)   log.info("String_Node_Str");
  new Thread(blogger).start();
  if (debug)   log.info("String_Node_Str");
  PluginManager pm=getServer().getPluginManager();
  pm.registerEvent(Event.Type.PLAYER_COMMAND,plrlisCommands,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_CHAT,plrlisChat,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_QUIT,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_ITEM,plrlisItem,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_CANBUILD,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_DAMAGED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_BREAK,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_PLACED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_IGNITE,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_BURN,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.BLOCK_RIGHTCLICKED,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.SIGN_CHANGE,blockListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.ENTITY_EXPLODE,entityListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.ENTITY_DAMAGED,entityListener,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_LOGIN,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_QUIT,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_JOIN,plrlisJoinQuit,Priority.Normal,this);
  pm.registerEvent(Event.Type.PLAYER_KICK,plrlisJoinQuit,Priority.Normal,this);
  if (debug)   log.info("String_Node_Str");
  PluginDescriptionFile pdfFile=this.getDescription();
  System.out.println(pdfFile.getName() + "String_Node_Str" + pdfFile.getVersion()+ "String_Node_Str");
}