#fixed code
                                public static String toString(
            final HttpEntity entity, final String defaultCharset) throws IOException, ParseException {
        if (entity == null) {
            throw new IllegalArgumentException("HTTP entity may not be null");
        }
        InputStream instream = entity.getContent();
        if (instream == null) {
            return null;
        }
        try {
            if (entity.getContentLength() > Integer.MAX_VALUE) {
                throw new IllegalArgumentException("HTTP entity too large to be buffered in memory");
            }
            int i = (int)entity.getContentLength();
            if (i < 0) {
                i = 4096;
            }
            ContentType contentType = ContentType.getOrDefault(entity);
            String charset = contentType.getCharset();
            if (charset == null) {
                charset = defaultCharset;
            }
            if (charset == null) {
                charset = HTTP.DEFAULT_CONTENT_CHARSET;
            }
            Reader reader = new InputStreamReader(instream, charset);
            CharArrayBuffer buffer = new CharArrayBuffer(i);
            char[] tmp = new char[1024];
            int l;
            while((l = reader.read(tmp)) != -1) {
                buffer.append(tmp, 0, l);
            }
            return buffer.toString();
        } finally {
            instream.close();
        }
    }
#vulnerable code 
                                public static String toString(
            final HttpEntity entity, final String defaultCharset) throws IOException, ParseException {
        if (entity == null) {
            throw new IllegalArgumentException("HTTP entity may not be null");
        }
        InputStream instream = entity.getContent();
        if (instream == null) {
            return null;
        }
        try {
            if (entity.getContentLength() > Integer.MAX_VALUE) {
                throw new IllegalArgumentException("HTTP entity too large to be buffered in memory");
            }
            int i = (int)entity.getContentLength();
            if (i < 0) {
                i = 4096;
            }
            String charset = getContentCharSet(entity);
            if (charset == null) {
                charset = defaultCharset;
            }
            if (charset == null) {
                charset = HTTP.DEFAULT_CONTENT_CHARSET;
            }
            Reader reader = new InputStreamReader(instream, charset);
            CharArrayBuffer buffer = new CharArrayBuffer(i);
            char[] tmp = new char[1024];
            int l;
            while((l = reader.read(tmp)) != -1) {
                buffer.append(tmp, 0, l);
            }
            return buffer.toString();
        } finally {
            instream.close();
        }
    } 
                            #location 32 
                            #vulnerability type RESOURCE_LEAK