Package io.a2a.spec

Class MethodNotFoundError

java.lang.Object

java.lang.Throwable

java.lang.Exception

java.lang.RuntimeException

io.a2a.spec.A2AError

io.a2a.spec.MethodNotFoundError

All Implemented Interfaces:

Event, Serializable

public class MethodNotFoundError
extends A2AError

JSON-RPC error indicating that the requested method does not exist or is not available.

This error is returned when a client attempts to invoke a JSON-RPC method that is not implemented by the agent. In the A2A Protocol context, this typically means calling an unsupported protocol method.

Corresponds to JSON-RPC 2.0 error code -32601.

Usage example:

 // Standard error for unknown method
 throw new MethodNotFoundError();
 

See Also:

• JSON-RPC 2.0 Error Codes
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
MethodNotFoundError()	Constructs error with default message.
MethodNotFoundError(@Nullable Integer code, @Nullable String message, @Nullable Object data)	Constructs error with all parameters.

Method Summary

Methods inherited from class io.a2a.spec.A2AError

getCode, getData

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, getStackTrace, getSuppressed, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

MethodNotFoundError

public MethodNotFoundError(@Nullable Integer code,
 @Nullable String message,
 @Nullable Object data)

Constructs error with all parameters.

Parameters:

code - the error code (defaults to -32601 if null)

message - the error message (defaults to "Method not found" if null)

data - additional error data (optional)

MethodNotFoundError

public MethodNotFoundError()

Constructs error with default message.