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alibaba/arthas

Alibaba Java Diagnostic Tool Arthas/Alibaba Java诊断利器Arthas · Java · 857 source files

Analyzed at 21cf2e9ba5 on 2026-08-14. 126 documented errors.

Code / MessageTypeSeverityTags
Unsupported dataSource format
exception error flame-graph, web-component, data-validation, case-sensitivity
Timeout waiting for response to request
exception error concurrency, timeout, mcp, task-queue, async
groovy command is not supported yet!
exception info groovy, unsupported, monitor, stub
can not find
exception critical bootstrap, classpath, instrumentation, spy-jar
Object size exceeds size limit
exception warning arthas, object-view, memory, configuration, size-limit
By default, strict mode is true, not allowed to set object…
exception warning ognl, strict-mode, safety, configuration
文件不存在或不在允许目录白名单内
validation error viewfile, path-validation, arthas-mcp, filesystem, whitelist
Arthas server did not start after attach
exception critical attach, mount-namespace, network, container, diagnostic
Resource with URI ' ' not found
exception error mcp, resource, dynamic-registration, stateful-server, java
ERROR: arthas vmtool JVMTI AddCapabilities failed!%u
console critical arthas, vmtool, jvmti, native, jni, agent, capabilities
Task-aware tools registered but no TaskStore configured…
exception critical mcp, task, builder, configuration, java
missing newInstance method
validation error reflection, cglib, api-contract
-32603
Task did not complete within timeout
error_code error mcp, task, timeout, async, java
-32602
Task not found (may have expired after TTL)
error_code error mcp, task, ttl, in-memory-store, invalid-params, java
Unsupported platform
exception error arthas, async-profiler, platform, native, unsupported
consumer not found
http error arthas, http-api, session, consumer
Can not find tools.jar under java home
validation error boot, jdk, java-home, environment, java8
Required parameter ' ' is missing
validation error mcp, tool, validation, toolparam, java
Required parameter ' ' cannot be empty
validation error validation, mcp, tool-param, api-contract
Could not find an available tcp port in the range
exception error network, tcp, port-allocation, configuration
Can not find libasyncProfiler so, please check the arthas…
exception error arthas, profiler, native-library, environment, async-profiler
AllServerStart must be initialized before!
exception error arthas, grpc-web-proxy, lifecycle, singleton, initialization
文件不在允许目录白名单内
validation error arthas, mcp, viewfile, security, whitelist, path-traversal
Conversion from JSON to
exception error json, serialization, fastjson, jackson
Bad zip entry
exception error security, zip-slip, filesystem, io, common
Duplicate tool name
validation error mcp, tool, builder, duplicate, configuration, java
Tool with name ' ' already exists
validation error mcp, tool, dynamic-registration, duplicate, stateless-server, java
Configuration should be an object
exception error flame-graph, web-component, type-validation
Prompt with name ' ' already exists
exception error mcp, prompt, dynamic-registration, duplicate, stateful-server, java
cursor 解析失败
validation error arthas, mcp, viewfile, cursor, input-validation, parse-error
ERROR: arthas vmtool Unable to create jvmtiEnv, GetEnv…
console critical arthas, vmtool, jvmti, native, jni, agent
' ' is not a valid size. Should be numeric value followed…
validation warning jfr, user-input, parsing, configuration
Unsupported action: . Supported actions: record(t)…
validation error tt, defensive-guard, validation, arthas-mcp
Failed to prepare MCP upload directory
exception critical upload, filesystem, initialization, io, arthas-mcp
Can not find tools.jar under java home
validation error boot, jdk, tools-jar, java8, environment
SessionId is required for this operation
exception error session, api-contract, command-execution
current node is root.
exception error arthas, tree-view, logic-error, rendering
火焰图获取失败
exception error network, jfr, flame-graph, fetch, backend
zero length message
validation warning client, telnet, validation, commons-net
元数据获取失败
exception error network, jfr, fetch, backend
Arthas server port binding failed! Please check…
exception critical arthas, agent-attach, port-binding, startup
model class is null
exception error arthas, grpc-web-proxy, reflection, view-registry, null
Failed to create temporary session
exception error session, resource-limits, command-execution
Failed to create MCP upload directory
exception critical upload, filesystem, initialization, temp-dir, io, arthas-mcp
Line range syntax is not supported in the first version
validation warning line-command, user-input, parsing, unsupported-syntax
Directory ' ' could not be created
exception error arthas, file-io, filesystem, permissions
Resource with URI ' ' already exists
validation error mcp, resource, dynamic-registration, duplicate, stateless-server, java
Failed to initialize Arthas MCP server
exception critical arthas, mcp, server, startup, runtime-exception
Cannot write to standard output when
exception error arthas, grpc-web-proxy, lifecycle, concurrency, process-state
create view instance failure, viewClass
exception error arthas, grpc-web-proxy, reflection, view-registry, instantiation
batch file do not exist
validation error client, telnet, filesystem, config
The amount of async command that saving result to file…
validation error async, redirect, jobs, resource-limit
expecting exactly 1 method in
validation error reflection, cglib, api-contract
Failed to start Arthas MCP server
exception critical arthas, mcp, server, startup, runtime-exception
Invalid line number
validation error arthas, line-command, input-validation, cli
Couldn't find rpcmethod
validation error arthas, grpc-web-proxy, reflection, method-resolution, proto
Source is not an array
exception error arthas, reflection, type-check, utility
sizeLimit must be greater than 0.
validation error arthas, tt-command, input-validation, limit
File ' ' exists but is a directory
exception error arthas, file-io, filesystem, configuration
is not an interface
validation error reflection, cglib, api-contract, type-check
Error! command not permitted, try to use 'auth' command to…
validation error authentication, authorization, security, session
The --line option is required unless --list-lines is used.
validation warning line-command, user-input, validation, configuration
Cannot run proces in
exception error process-state, run, lifecycle
do not exist, arthas home
validation error boot, installation, filesystem, config
Cannot convert to char
validation error json, type-coercion, char, reflection
'sessionId' is required
http error http-api, session, request-validation
can not getResources arthas-bin.zip from classloader
exception critical arthas, agent-attach, classpath, packaging
Arthas failed to bind telnet or http port! Telnet port
exception critical network, port-binding, startup, telnet, http
Line number must be greater than 0
validation error arthas, line-command, input-validation, cli
illegal arthas home
validation error boot, installation, filesystem, config
is invalid
validation warning classloader, user-input, parsing, validation
Prompt with name ' ' not found
exception error mcp, prompt, dynamic-registration, stateful-server, java
不是普通文件
validation error viewfile, path-validation, filesystem, arthas-mcp
Failed to create directory within
exception critical arthas, filesystem, tmpdir, permissions, container
Can not find java/java.exe executable file under java home
validation error boot, jdk, java-home, environment, executable
Cannot interrupt process in
exception error process-state, interrupt, lifecycle
Cannot terminate terminated process
exception warning process-state, terminate, lifecycle
cursor 缺少 path
validation error arthas, mcp, viewfile, cursor, input-validation
create api session failed
http error http-api, session, init-session
Current OS do not support AsyncProfiler, Only support…
exception error arthas, profiler, unsupported-os, windows, environment
must not be blank.
validation warning classloader, user-input, parsing, configuration
Argument(s) is/are expected, type 'help tt' to read usage
validation error arthas, tt-command, required-argument, cli
limit can not be 0
validation error vmtool, validation, jvm, argument
backtraceNum must be -1 or greater
validation error vmtool, validation, jvm, argument
cursor 缺少 offset
validation error arthas, mcp, viewfile, cursor, input-validation
: Is a directory
exception error shell, redirect, filesystem, arthas
Should specify the format of dataSource: 'line' or 'tree'
exception error flame-graph, web-component, data-validation
Tool with name ' ' not found
exception warning mcp, arthas-mcp-server, registration, not-found
must be greater than 0.
validation warning classloader, user-input, parsing, validation
unknown action
http error http-api, action, enum-validation
vmtool 需要指定类名 (className)
validation error vmtool, required-param, validation, arthas-mcp
incorrect pathinfo
validation error arthas, grpc-web-proxy, request-routing, url-path, validation
Time fragment index is expected, please type -i to specify
validation error arthas, tt-command, required-argument, input-validation
Cannot resume process in
exception error process-state, resume, lifecycle
'consumerId' is required
http error http-api, consumer, request-validation
' ' is not a valid timespan. Shoule be numeric value…
validation warning jfr, user-input, parsing, configuration
Too many line numbers, maximum is 256.
validation error arthas, line-command, limit, input-validation
Unsupported action: . Supported actions
validation error profiler, invalid-param, enum, async-profiler, arthas-mcp
Session not found
exception error session, ttl, api-contract
cursor offset 不允许为负数
validation error arthas, mcp, viewfile, cursor, input-validation