java-jdtls-mcp-server (SachieWang/java-jdtls-mcp-server) is an MCP server listed on the M8ven Trust Index. It scores 72 out of 100, grade C. It declares 15 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
72/100

java-jdtls-mcp-server

A high-performance MCP server that bridges AI agents with Java codebases, providing professional-grade Java language intelligence via Eclipse JDT.LS.

→ SachieWang/java-jdtls-mcp-server· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

Code Verified⚡ Live Monitored: not connected

Verified is a snapshot. Live keeps it current, and builds your track record.

⚡ Connect GitHub → continuous verification on every pushwhy connect →

Who stands behind it

SachieWang

Source: Glama

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

⚡ Connect GitHub for Live Monitored

Install from

Glamanot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
⚠️
Known vulnerabilities in dependencies: 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// tools this server exposes15 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

java_start

Start the Java Language Server (JDT.LS). Required before other commands. If already running, it will restart.

java_restart

Restart the Java Language Server (JDT.LS).

java_open_file

Notify the language server that a file is open (didOpen).

java_get_definition

Get definition location for a symbol.

java_get_references

Get references for a symbol.

java_get_hover

Get hover information for a symbol.

java_get_diagnostics

Get diagnostics (errors/warnings) for a file. This tool now attempts to pull diagnostics actively from the server if supported (LSP 3.17+), otherwise falls back to cached results from asynchronous publishing.

java_get_workspace_diagnostics

Pull diagnostics for the entire workspace (LSP 3.17+). Note: This may not be supported by all language server versions.

java_load_maven_project

Load a Maven Java project into the language server workspace. This causes JDTLS to index the project, resolving dependencies and symbols across the entire project without needing to open files individually.

java_search_symbols

Search for symbols (classes, methods, fields) across the entire workspace by name.

java_get_file_symbols

Get all symbols (classes, methods, fields) defined in a specific file.

java_get_status

Get the current status of the Java Language Server.

configure_jdt_ls

Dynamically update JDT.LS configuration (e.g. enable source downloading).

find_references

Find references for a symbol. This is an enhanced version of java_get_references that marks external library results.

read_java_content

Read the content of a Java file, including local files and external library source code (jdt:// or jrt:// URIs).

// known CVEs in dependencies2 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.25.1GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.25.1GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configJAVA_HOMEJDTLS_JAVA_HOME Dedicated JDK path for JDT.LS (Overrides ) No System JAVA_HOME
configJAVA_PROJECT
configJAVA_WORKSPACE_PATHRoot path of your Java project No Current Working Directory
configJDTLS_HOME"": "D:/software/jdt-language-server-latest",
configJDTLS_JAVA_HOME"": "D:/software/java/jdk-23.0.1",
configJDTLS_JAVA_RUNTIMES"": "[{\"name\":\"JavaSE-1.8\",\"path\":\"C:/Program Files/Java/jdk1.8.0_361\"},{\"name\":\"JavaSE-17\",\"path\":\"D:/software/jdk-17.0.7\"}]",
configJDTLS_MAVEN_GLOBAL_SETTINGS"": "D:/software/apache-maven-3.9.3/conf/settings.xml"
configJDTLS_MAVEN_OFFLINEEnable Maven offline mode (true/false) No false
configJDTLS_MAVEN_USER_SETTINGS"": "D:/software/apache-maven-3.9.3/conf/settings.xml",
configXDG_CACHE_HOME
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

15/15 tools missing one or more hints — java_start (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); java_restart (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); java_open_file (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +12 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.25.1 (high), @modelcontextprotocol/sdk@1.25.1 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Domain consistency

npm scope @sachiewonder doesn't match GitHub owner sachiewang

Use the same org name across GitHub, npm, and your homepage so users can verify the publisher.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 5 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/sachiewang/java-jdtls-mcp-server?variant=verified)](https://m8ven.ai/mcp/sachiewang/java-jdtls-mcp-server)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 63e454f31685ea0bb721828204d7a2dfb12a9a2f
code hash: a76adbc7bc5aa0eefc0cd545934e91271fea89f6695d99c6ce3a07ddd338d4dd
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.

https://m8ven.ai/api/mcp/tool-check
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client