Program: 41930
Project: 41930
Buggy source:
private HashMap<PlotId,Plot> getPlots(IWorld world){
  HashMap<PlotId,Plot> ret=new HashMap<>();
  Connection connection=getConnection();
  try (PreparedStatement statementPlot=connection.prepareStatement("String_Node_Str");PreparedStatement statementAllowed=connection.prepareStatement("String_Node_Str");PreparedStatement statementDenied=connection.prepareStatement("String_Node_Str");PreparedStatement statementLikes=connection.prepareStatement("String_Node_Str");PreparedStatement statementMetadata=connection.prepareStatement("String_Node_Str")){
    statementPlot.setString(1,world.getName().toLowerCase());
    try (ResultSet setPlots=statementPlot.executeQuery()){
      while (setPlots.next()) {
        long internalID=setPlots.getLong("String_Node_Str");
        PlotId id=new PlotId(setPlots.getInt("String_Node_Str"),setPlots.getInt("String_Node_Str"));
        String owner=setPlots.getString("String_Node_Str");
        UUID ownerId=UUID.fromString(setPlots.getString("String_Node_Str"));
        String biome=setPlots.getString("String_Node_Str");
        Date expiredDate=setPlots.getDate("String_Node_Str");
        boolean finished=setPlots.getBoolean("String_Node_Str");
        String finishedDate=setPlots.getString("String_Node_Str");
        String createdDate=setPlots.getString("String_Node_Str");
        double price=setPlots.getDouble("String_Node_Str");
        boolean forSale=setPlots.getBoolean("String_Node_Str");
        boolean protect=setPlots.getBoolean("String_Node_Str");
        String plotName=setPlots.getString("String_Node_Str");
        int plotLikes=setPlots.getInt("String_Node_Str");
        com.worldcretornica.plotme_core.api.Vector topLoc=new com.worldcretornica.plotme_core.api.Vector(setPlots.getInt("String_Node_Str"),255,setPlots.getInt("String_Node_Str"));
        com.worldcretornica.plotme_core.api.Vector bottomLoc=new com.worldcretornica.plotme_core.api.Vector(setPlots.getInt("String_Node_Str"),0,setPlots.getInt("String_Node_Str"));
        HashMap<String,Map<String,String>> metadata=new HashMap<>();
        HashMap<String,Plot.AccessLevel> allowed=new HashMap<>();
        HashSet<String> denied=new HashSet<>();
        HashSet<UUID> likers=new HashSet<>();
        statementAllowed.setLong(1,internalID);
        try (ResultSet setAllowed=statementAllowed.executeQuery()){
          while (setAllowed.next()) {
            allowed.put(setAllowed.getString("String_Node_Str"),Plot.AccessLevel.getAccessLevel(setAllowed.getInt("String_Node_Str")));
          }
        }
         statementDenied.setLong(1,internalID);
        try (ResultSet setDenied=statementDenied.executeQuery()){
          while (setDenied.next()) {
            denied.add(setDenied.getString("String_Node_Str"));
          }
        }
         statementLikes.setLong(1,internalID);
        try (ResultSet setLikes=statementLikes.executeQuery()){
          while (setLikes.next()) {
            likers.add(UUID.fromString(setLikes.getString("String_Node_Str")));
          }
        }
         statementMetadata.setLong(1,internalID);
        try (ResultSet setMetadata=statementMetadata.executeQuery()){
          while (setMetadata.next()) {
            String pluginname=setMetadata.getString("String_Node_Str");
            String propertyname=setMetadata.getString("String_Node_Str");
            String propertyvalue=setMetadata.getString("String_Node_Str");
            if (!metadata.containsKey(pluginname)) {
              metadata.put(pluginname,new HashMap<String,String>());
            }
            metadata.get(pluginname).put(propertyname,propertyvalue);
          }
        }
         Plot plot=new Plot(internalID,owner,ownerId,world,biome,expiredDate,allowed,denied,likers,id,price,forSale,finished,finishedDate,protect,metadata,plotLikes,plotName,topLoc,bottomLoc,createdDate);
        ret.put(plot.getId(),plot);
      }
    }
   }
 catch (  SQLException ex) {
    plugin.getLogger().severe("String_Node_Str");
    plugin.getLogger().severe(ex.getMessage());
    plugin.getLogger().severe("String_Node_Str" + ex.getMessage());
    plugin.getLogger().severe("String_Node_Str" + ex.getErrorCode());
    plugin.getLogger().severe("String_Node_Str" + ex.getSQLState());
  }
  return ret;
}

Fixed version (ground truth):
private HashMap<PlotId,Plot> getPlots(IWorld world){
  HashMap<PlotId,Plot> ret=new HashMap<>();
  Connection connection=getConnection();
  try (PreparedStatement statementPlot=connection.prepareStatement("String_Node_Str");PreparedStatement statementAllowed=connection.prepareStatement("String_Node_Str");PreparedStatement statementDenied=connection.prepareStatement("String_Node_Str");PreparedStatement statementLikes=connection.prepareStatement("String_Node_Str");PreparedStatement statementMetadata=connection.prepareStatement("String_Node_Str")){
    statementPlot.setString(1,world.getName().toLowerCase());
    try (ResultSet setPlots=statementPlot.executeQuery()){
      while (setPlots.next()) {
        long internalID=setPlots.getLong("String_Node_Str");
        PlotId id=new PlotId(setPlots.getInt("String_Node_Str"),setPlots.getInt("String_Node_Str"));
        String owner=setPlots.getString("String_Node_Str");
        UUID ownerId=UUID.fromString(setPlots.getString("String_Node_Str"));
        String biome=setPlots.getString("String_Node_Str");
        Date expiredDate=setPlots.getDate("String_Node_Str");
        boolean finished=setPlots.getBoolean("String_Node_Str");
        String finishedDate=setPlots.getString("String_Node_Str");
        String createdDate=setPlots.getString("String_Node_Str");
        double price=setPlots.getDouble("String_Node_Str");
        boolean forSale=setPlots.getBoolean("String_Node_Str");
        boolean protect=setPlots.getBoolean("String_Node_Str");
        String plotName=setPlots.getString("String_Node_Str");
        int plotLikes=setPlots.getInt("String_Node_Str");
        com.worldcretornica.plotme_core.api.Vector topLoc=PlotMeCoreManager.getInstance().getPlotTopLoc(world,id);
        com.worldcretornica.plotme_core.api.Vector bottomLoc=PlotMeCoreManager.getInstance().getPlotBottomLoc(world,id);
        HashMap<String,Map<String,String>> metadata=new HashMap<>();
        HashMap<String,Plot.AccessLevel> allowed=new HashMap<>();
        HashSet<String> denied=new HashSet<>();
        HashSet<UUID> likers=new HashSet<>();
        statementAllowed.setLong(1,internalID);
        try (ResultSet setAllowed=statementAllowed.executeQuery()){
          while (setAllowed.next()) {
            allowed.put(setAllowed.getString("String_Node_Str"),Plot.AccessLevel.getAccessLevel(setAllowed.getInt("String_Node_Str")));
          }
        }
         statementDenied.setLong(1,internalID);
        try (ResultSet setDenied=statementDenied.executeQuery()){
          while (setDenied.next()) {
            denied.add(setDenied.getString("String_Node_Str"));
          }
        }
         statementLikes.setLong(1,internalID);
        try (ResultSet setLikes=statementLikes.executeQuery()){
          while (setLikes.next()) {
            likers.add(UUID.fromString(setLikes.getString("String_Node_Str")));
          }
        }
         statementMetadata.setLong(1,internalID);
        try (ResultSet setMetadata=statementMetadata.executeQuery()){
          while (setMetadata.next()) {
            String pluginname=setMetadata.getString("String_Node_Str");
            String propertyname=setMetadata.getString("String_Node_Str");
            String propertyvalue=setMetadata.getString("String_Node_Str");
            if (!metadata.containsKey(pluginname)) {
              metadata.put(pluginname,new HashMap<String,String>());
            }
            metadata.get(pluginname).put(propertyname,propertyvalue);
          }
        }
         Plot plot=new Plot(internalID,owner,ownerId,world,biome,expiredDate,allowed,denied,likers,id,price,forSale,finished,finishedDate,protect,metadata,plotLikes,plotName,topLoc,bottomLoc,createdDate);
        ret.put(plot.getId(),plot);
      }
    }
   }
 catch (  SQLException ex) {
    plugin.getLogger().severe("String_Node_Str");
    plugin.getLogger().severe(ex.getMessage());
    plugin.getLogger().severe("String_Node_Str" + ex.getMessage());
    plugin.getLogger().severe("String_Node_Str" + ex.getErrorCode());
    plugin.getLogger().severe("String_Node_Str" + ex.getSQLState());
  }
  return ret;
}