output: #fixed code
                                  public static void configureLog(Properties properties) {
          for (String property : properties.stringPropertyNames()) {
              if (property.startsWith(LOGGER_PREFIX)) {
                  String classPrefix = getClassPrefix(property);
                  AgentLogger.Level level = getLevel(property, properties.getProperty(property));
  
                  if (level != null) {
                      if (classPrefix == null)
                          AgentLogger.setLevel(level);
                      else
                          AgentLogger.setLevel(classPrefix, level);
                  }
              } else if (property.equals(LOGFILE)) {
                  String logfile = properties.getProperty(LOGFILE);
                  boolean append = parseBoolean(properties.getProperty(LOGFILE_APPEND, "false"));
                  try {
                  PrintStream ps = new PrintStream(new FileOutputStream(new File(logfile), append));
                  	AgentLogger.getHandler().setPrintStream(ps);
                  } catch (FileNotFoundException e) {
                      LOGGER.error("Invalid configuration property {} value '{}'. Unable to create/open the file.",
                              e, LOGFILE, logfile);
                  }
              }
          }
      }
input: #vulnerable code 
                                  public static void configureLog(Properties properties) {
          for (String property : properties.stringPropertyNames()) {
              if (property.startsWith(LOGGER_PREFIX)) {
                  String classPrefix = getClassPrefix(property);
                  AgentLogger.Level level = getLevel(property, properties.getProperty(property));
  
                  if (level != null) {
                      if (classPrefix == null)
                          AgentLogger.setLevel(level);
                      else
                          AgentLogger.setLevel(classPrefix, level);
                  }
              } else if (property.equals(LOGFILE)) {
                  String logfile = properties.getProperty(LOGFILE);
                  try {
                      AgentLogger.getHandler().setPrintStream(new PrintStream(new File(logfile)));
                  } catch (FileNotFoundException e) {
                      LOGGER.error("Invalid configuration property {} value '{}'. Unable to create/open the file.",
                              e, LOGFILE, logfile);
                  }
              }
          }
      } 
                              #location 16 
                              #vulnerability type RESOURCE_LEAK