#fixed code
                                private static OutputStream getOutputStream(final boolean follow, final Target target) {
        final PrintStream printStream = target == Target.SYSTEM_OUT ?
            follow ? new PrintStream(new SystemOutStream()) : System.out :
            follow ? new PrintStream(new SystemErrStream()) : System.err;
        PropertiesUtil propsUtil = PropertiesUtil.getProperties();
        if (!propsUtil.getStringProperty("os.name").startsWith("Windows") ||
            propsUtil.getBooleanProperty("log4j.skipJansi")) {
            return printStream;
        } else {
            try {
                final ClassLoader loader = Loader.getClassLoader();
                // We type the parameter as a wildcard to avoid a hard reference to Jansi.
                final Class<?> clazz = loader.loadClass("org.fusesource.jansi.WindowsAnsiOutputStream");
                final Constructor<?> constructor = clazz.getConstructor(OutputStream.class);
                return (OutputStream) constructor.newInstance(printStream);
            } catch (final ClassNotFoundException cnfe) {
                LOGGER.debug("Jansi is not installed");
            } catch (final NoSuchMethodException nsme) {
                LOGGER.warn("WindowsAnsiOutputStream is missing the proper constructor");
            } catch (final Exception ex) {
                LOGGER.warn("Unable to instantiate WindowsAnsiOutputStream");
            }
            return printStream;
        }
    }
#vulnerable code 
                                private static OutputStream getOutputStream(final boolean follow, final Target target) {
        final PrintStream printStream = target == Target.SYSTEM_OUT ?
            follow ? new PrintStream(new SystemOutStream()) : System.out :
            follow ? new PrintStream(new SystemErrStream()) : System.err;
        if (!System.getProperty("os.name").startsWith("Windows") || Boolean.getBoolean("log4j.skipJansi")) {
            return printStream;
        } else {
            try {
                final ClassLoader loader = Loader.getClassLoader();
                // We type the parameter as a wildcard to avoid a hard reference to Jansi.
                final Class<?> clazz = loader.loadClass("org.fusesource.jansi.WindowsAnsiOutputStream");
                final Constructor<?> constructor = clazz.getConstructor(OutputStream.class);
                return (OutputStream) constructor.newInstance(printStream);
            } catch (final ClassNotFoundException cnfe) {
                LOGGER.debug("Jansi is not installed");
            } catch (final NoSuchMethodException nsme) {
                LOGGER.warn("WindowsAnsiOutputStream is missing the proper constructor");
            } catch (final Exception ex) {
                LOGGER.warn("Unable to instantiate WindowsAnsiOutputStream");
            }
            return printStream;
        }
    } 
                            #location 13 
                            #vulnerability type RESOURCE_LEAK