output: #fixed code
                                  public Plugin loadPlugin(File file) throws InvalidPluginException, InvalidDescriptionException, UnknownDependencyException {
          return loadPlugin(file, false);
      }
input: #vulnerable code 
                                  public Plugin loadPlugin(File file) throws InvalidPluginException, InvalidDescriptionException, UnknownDependencyException {
          JavaPlugin result = null;
          PluginDescriptionFile description = null;
  
          if (!file.exists()) {
              throw new InvalidPluginException(new FileNotFoundException(String.format("%s does not exist", file.getPath())));
          }
          try {
              JarFile jar = new JarFile(file);
              JarEntry entry = jar.getJarEntry("plugin.yml");
  
              if (entry == null) {
                  throw new InvalidPluginException(new FileNotFoundException("Jar does not contain plugin.yml"));
              }
  
              InputStream stream = jar.getInputStream(entry);
              description = new PluginDescriptionFile(stream);
  
              stream.close();
              jar.close();
          } catch (IOException ex) {
              throw new InvalidPluginException(ex);
          } catch (YAMLException ex) {
              throw new InvalidPluginException(ex);
          }
  
          File dataFolder = new File(file.getParentFile(), description.getName());
          File oldDataFolder = getDataFolder(file);
  
          // Found old data folder
          if (dataFolder.equals(oldDataFolder)) {
              // They are equal -- nothing needs to be done!
          } else if (dataFolder.isDirectory() && oldDataFolder.isDirectory()) {
              server.getLogger().log( Level.INFO, String.format(
                  "While loading %s (%s) found old-data folder: %s next to the new one: %s",
                  description.getName(),
                  file,
                  oldDataFolder,
                  dataFolder
              ));
          } else if (oldDataFolder.isDirectory() && !dataFolder.exists()) {
              if (!oldDataFolder.renameTo(dataFolder)) {
                  throw new InvalidPluginException(new Exception("Unable to rename old data folder: '" + oldDataFolder + "' to: '" + dataFolder + "'"));
              }
              server.getLogger().log( Level.INFO, String.format(
                  "While loading %s (%s) renamed data folder: '%s' to '%s'",
                  description.getName(),
                  file,
                  oldDataFolder,
                  dataFolder
              ));
          }
  
          if (dataFolder.exists() && !dataFolder.isDirectory()) {
              throw new InvalidPluginException(new Exception(String.format(
                  "Projected datafolder: '%s' for %s (%s) exists and is not a directory",
                  dataFolder,
                  description.getName(),
                  file
              )));
          }
  
          ArrayList<String> depend;
          try {
              depend = (ArrayList)description.getDepend();
              if(depend == null) {
                  depend = new ArrayList<String>();
              }
          } catch (ClassCastException ex) {
               throw new InvalidPluginException(ex);
          }
  
          for(String pluginName : depend) {
              if(loaders == null) {
                  throw new UnknownDependencyException(pluginName);
              }
              PluginClassLoader current = loaders.get(pluginName);
              if(current == null) {
                  throw new UnknownDependencyException(pluginName);
              }
          }
  
          PluginClassLoader loader = null;
          try {
              URL[] urls = new URL[1];
              urls[0] = file.toURI().toURL();
              loader = new PluginClassLoader(this, urls, getClass().getClassLoader());
              Class<?> jarClass = Class.forName(description.getMain(), true, loader);
              Class<? extends JavaPlugin> plugin = jarClass.asSubclass(JavaPlugin.class);
  
              Constructor<? extends JavaPlugin> constructor = plugin.getConstructor();
              result = constructor.newInstance();
  
              result.initialize(this, server, description, dataFolder, file, loader);
          } catch (Throwable ex) {
              throw new InvalidPluginException(ex);
          }
  
          loaders.put(description.getName(), (PluginClassLoader)loader);
  
          return (Plugin)result;
      } 
                              #location 13 
                              #vulnerability type RESOURCE_LEAK