vista can not show all java field and methods

[finviman]

Describe the bug
vista is beautiful and powerful with coc, but it cannot show all java fields and methods with ctags.
Environment:

• OS: macOS
• Neovim version: 0.4.2
• This plugin version: 013f2d0
• I'm using universal-ctags:
  Universal Ctags 0.0.0(3671ad7), Copyright (C) 2015 Universal Ctags Team
  Universal Ctags is derived from Exuberant Ctags.
  Exuberant Ctags 5.8, Copyright (C) 1996-2009 Darren Hiebert
  Compiled: May 6 2020, 19:15:11
  URL: https://ctags.io/
  Optional compiled features: +wildcards, +regex, +iconv, +option-directory, +xpath, +json, +interactive, +case-insensitive-filenames, +packcc

Vista info

Current FileType: java
Avaliable Executives: ['coc', 'ctags']
    Global Variables:
    let g:vista = {'winnr': function('8'), 'tree': {}, 'source': {'fname': 'MyWxMpService.java', 'bufnr': 1, 'get_winid': function('12'), 'winid': 1000, 'winnr': 1, 'extensi
on': function('17'), 'line': function('15'), 'get_winnr': function('11'), 'filetype': function('13'), 'lines': function('14'), 'line_trimmed': function('16'), 'scope_seperat
or': function('18'), 'fpath': '/Users/liyang/Downloads/MyWxMpService.java'}, 'without_scope': [{'name': 'com.xiaowo.service', 'vlnum': 7, 'line': 1, '_type': 'tag', 'kind':
'package'}, {'name': 'MyWxMpService', 'vlnum': 3, 'line': 19, '_type': 'tag', 'kind': 'class'}], 'get_tagline_under_cursor': function('10'), 'provider': 'ctags', 'with_scope
': [{'scopeKind': 'class', 'vlnum': 4, 'name': 'WEIXIN_ACCESS_TOKEN', 'scope': 'MyWxMpService', 'line': 31, '_type': 'tag', 'kind': 'field', 'access': 'public'}], 'functions
': [{'lnum': 31, 'text': 'WEIXIN_ACCESS_TOKEN'}], 'raw': [{'name': 'com.xiaowo.service', 'vlnum': 7, 'line': 1, '_type': 'tag', 'kind': 'package'}, {'name': 'MyWxMpService',
 'vlnum': 3, 'line': 19, '_type': 'tag', 'kind': 'class'}, {'scopeKind': 'class', 'vlnum': 4, 'name': 'WEIXIN_ACCESS_TOKEN', 'scope': 'MyWxMpService', 'line': 31, '_type': '
tag', 'kind': 'field', 'access': 'public'}], 'kinds': ['package', 'class', 'field'], 'ctags_cmd': 'ctags --format=2 --excmd=pattern --fields=nksSaf --file-scope=yes --sort=n
o --append=no --extras=  --language-force=java --java-kinds=pacefgim --output-format=json --fields=-PF -f- /var/folders/gw/gtzhj2qs4sq3z36ghw20k35w0000gn/T/b44cfae1c0ef33464
af85f4c77c611168ad46fe10e0d838ea5f258fa5b78b119.java', 'bufnr': 3, 'raw_by_kind': {'field': [{'scopeKind': 'class', 'vlnum': 4, 'name': 'WEIXIN_ACCESS_TOKEN', 'scope': 'MyWx
MpService', 'line': 31, '_type': 'tag', 'kind': 'field', 'access': 'public'}], 'package': [{'name': 'com.xiaowo.service', 'vlnum': 7, 'line': 1, '_type': 'tag', 'kind': 'pac
kage'}], 'class': [{'name': 'MyWxMpService', 'vlnum': 3, 'line': 19, '_type': 'tag', 'kind': 'class'}]}, 'pos': [{'lnum': 1, 'leftcol': 0, 'col': 0, 'topfill': 0, 'topline':
 1, 'coladd': 0, 'skipcol': 0, 'curswant': 0}, 2, '1resize 45|vert 1resize 142|2resize 45|vert 2resize 30|'], 'floating_visible': v:false, 'vlnum_cache': [{'name': 'MyWxMpSe
rvice', 'vlnum': 3, 'line': 19, '_type': 'tag', 'kind': 'class'}, {'scopeKind': 'class', 'vlnum': 4, 'name': 'WEIXIN_ACCESS_TOKEN', 'scope': 'MyWxMpService', 'line': 31, '_t
ype': 'tag', 'kind': 'field', 'access': 'public'}, '', ''], 'winid': 1002}
    let g:vista#executive#ctags#support_json_format = 1
    let g:vista#executives = ['ale', 'coc', 'ctags', 'lcn', 'nvim_lsp', 'vim_lsc', 'vim_lsp']
    let g:vista#extensions = ['markdown', 'rst']
    let g:vista#finders = ['fzf', 'skim']
    let g:vista#renderer#ctags = 'default'
    let g:vista#renderer#default#vlnum_offset = 3
    let g:vista#renderer#enable_icon = 1
    let g:vista#renderer#icons = {'subroutine': '羚', 'method': '', 'func': '', 'variables': '', 'namespace': '', 'field': '', 'interface': '', 'type': '', 'packages'
: '', 'property': '襁', 'implementation': '', 'default': '', 'augroup': 'פּ', 'macro': '', 'enumerator': '', 'const': '', 'macros': '', 'map': 'פּ', 'fields': '', 'fun
ctions': '', 'enum': '', 'function': '', 'target': '', 'typedef': '', 'variable': '', 'modules': '', 'constant': '', 'struct': '', 'types': '', 'module': '', 'typ
eParameter': '', 'package': '', 'class': '', 'member': '', 'var': '', 'union': '鬒'}
    let g:vista_blink = [2, 100]
    let g:vista_close_on_jump = 0
    let g:vista_cursor_delay = 400
    let g:vista_default_executive = 'ctags'
    let g:vista_disable_statusline = 1
    let g:vista_echo_cursor = 1
    let g:vista_executive_for = {}
    let g:vista_find_absolute_nearest_method_or_function = 0
    let g:vista_find_nearest_method_or_function_delay = 300
    let g:vista_fold_toggle_icons = ['▼', '▶']
    let g:vista_icon_indent = ['└ ', '│ ']
    let g:vista_ignore_kinds = []
    let g:vista_no_mappings = 0
    let g:vista_sidebar_position = 'vertical botright'
    let g:vista_sidebar_width = 30
    let g:vista_stay_on_open = 1
    let g:vista_top_level_blink = [2, 100]
    let g:vista_update_on_text_changed = 0

Steps to reproduce given the above info

/**
 */
@Slf4j
@Service
@PropertySource(value={"classpath:conf/weixin.properties"})
@Getter
public class MyWxMpService extends WxMpServiceImpl{


    @Value("${AppID}")
    private String appId;
    @Value("${AppSecret}")
    private String appSecret;
    @Value("${token}")
    private String token;
    @Value("${encodingAESKey}")
    private String encodingAesKey;

    public static final String WEIXIN_ACCESS_TOKEN = "WEIXIN_ACCESS_TOKEN";

    @PostConstruct
    private void init(){
        final WxMpInMemoryConfigStorage config = new WxMpInMemoryConfigStorage();
        config.setAppId(appId);
        config.setSecret(appSecret);
        config.setToken(token);
        config.setAesKey(encodingAesKey);
        super.setWxMpConfigStorage(config);
    }

}

source file for reproduce the ctags issue:

minimal vimrc (neccessary when this issue is about some Vim LSP client):

set nocompatible
set runtimepath^=/path/to/vista.vim
syntax on
filetype plugin indent on

Expected behavior
A clear and concise description of what you expected to happen.

Actual behavior
A clear and concise description of what actually happens.

Screenshot or gif (if possible)
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[liuchengxu]

#320 might be related, since the ctags renderer has a fundamental flaw, I'll close this one for now.