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[coc.nvim] Language Support for Java client: couldn't create connection to server. #299

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[coc.nvim] Language Support for Java client: couldn't create connection to server.#299

Description

@anta40
anta40
opened on Aug 2, 2025

I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
coc-java Current version 1.26.1 is up to date

After nvim is launched, greeted by this message:

[coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
I'm using openjdk 17.0.14 2025-01-21 LTS

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      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
       blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
      Skip to content
      [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
      Open
      Open
      [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
      Description
      @anta40
      anta40
      opened on Aug 2, 2025
      I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
      coc-java Current version 1.26.1 is up to date
      After nvim is launched, greeted by this message:
      [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

      The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
      
I'm using openjdk 17.0.14 2025-01-21 LTS
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        No labels
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          No branches or pull requests
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
          Skip to content
          [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
          Open
          Open
          [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
          Description
          @anta40
          anta40
          opened on Aug 2, 2025
          I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
          coc-java Current version 1.26.1 is up to date
          After nvim is launched, greeted by this message:
          [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

          The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
          
I'm using openjdk 17.0.14 2025-01-21 LTS
          Metadata
          Metadata
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          No one assigned
            Labels
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            No labels
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            No type
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            No projects
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              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
              Skip to content
              [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
              Open
              Open
              [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
              Description
              @anta40
              anta40
              opened on Aug 2, 2025
              I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
              coc-java Current version 1.26.1 is up to date
              After nvim is launched, greeted by this message:
              [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

              The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
              
I'm using openjdk 17.0.14 2025-01-21 LTS
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                No labels
                No labels
                Type
                No type
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                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
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                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
                  Skip to content
                  [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
                  Open
                  Open
                  [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
                  Description
                  @anta40
                  anta40
                  opened on Aug 2, 2025
                  I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
                  coc-java Current version 1.26.1 is up to date
                  After nvim is launched, greeted by this message:
                  [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

                  The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
                  
I'm using openjdk 17.0.14 2025-01-21 LTS
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    No labels
                    No labels
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
                      Skip to content
                      [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
                      Open
                      Open
                      [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
                      Description
                      @anta40
                      anta40
                      opened on Aug 2, 2025
                      I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
                      coc-java Current version 1.26.1 is up to date
                      After nvim is launched, greeted by this message:
                      [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

                      The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
                      
I'm using openjdk 17.0.14 2025-01-21 LTS
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        No labels
                        No labels
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
                          Skip to content
                          [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
                          Open
                          Open
                          [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
                          Description
                          @anta40
                          anta40
                          opened on Aug 2, 2025
                          I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
                          coc-java Current version 1.26.1 is up to date
                          After nvim is launched, greeted by this message:
                          [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

                          The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
                          
I'm using openjdk 17.0.14 2025-01-21 LTS
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            No labels
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                            No type
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                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
[coc.nvim] Language Support for Java client: couldn't create connection to server. · Issue #299 · neoclide/coc-java · GitHub
                              Skip to content
                              [coc.nvim] Language Support for Java client: couldn't create connection to server. #299
                              Open
                              Open
                              [coc.nvim] Language Support for Java client: couldn't create connection to server.#299
                              Description
                              @anta40
                              anta40
                              opened on Aug 2, 2025
                              I'm using nvim 0.11.3 on macOS 15.5. coc-java is the latest version:
                              coc-java Current version 1.26.1 is up to date
                              After nvim is launched, greeted by this message:
                              [coc.nvim] Language Support for Java client: couldn't create connection to server.
Message: Pending response rejected since connection got disposed
Code: -32097

                              The result is annoying: can't save file after updating (:wq). nvim hang. How to debug this?
                              
I'm using openjdk 17.0.14 2025-01-21 LTS
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                No labels
                                No labels
                                Type
                                No type
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions