switch err {
	case errInvalidRange:
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRange), url)
		return
	case errInvalidRangeSource:
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopyPartRangeSource), url)
		return
	default:
		apiErr := errorCodes.ToAPIErr(ErrInvalidCopyPartRangeSource)
		apiErr.Description = err.Error()
		writeErrorResponse(ctx, w, apiErr, url)

            super(config, command, subcommand);
        }

        // Expose errorCode setter for testing - access protected field directly
        public void setTestErrorCode(int code) {
            this.errorCode = code;
        }

        @Override
        protected int writeSetupWireFormat(byte[] dst, int dstIndex) {
            return setupWireFormatReturn;

			writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrUnsupportedMetadata), r.URL)
			return
		}

		if isHTTPHeaderSizeTooLarge(r.Header) {
			if ok {
				tc.FuncName = "handler.ValidRequest"
				tc.ResponseRecorder.LogErrBody = true
			}

			defer logger.AuditLog(r.Context(), w, r, mustGetClaimsFromToken(r))
			writeErrorResponse(r.Context(), w, errorCodes.ToAPIErr(ErrMetadataTooLarge), r.URL)

        case SMB_COM_NT_TRANSACT_SECONDARY -> "SMB_COM_NT_TRANSACT_SECONDARY";
        default -> "UNKNOWN";
        };
        final String str = errorCode == 0 ? "0" : SmbException.getMessageByCode(errorCode);
        return "command=" + c + ",received=" + received + ",errorCode=" + str + ",flags=0x" + Hexdump.toHexString(flags & 0xFF, 4)

    }

    @Test
    void testToString() {
        smb.command = ServerMessageBlock.SMB_COM_ECHO;
        smb.errorCode = 0;
        smb.mid = 1;
        String str = smb.toString();
        assertTrue(str.contains("command=SMB_COM_ECHO"));
        assertTrue(str.contains("errorCode=0"));
        assertTrue(str.contains("mid=1"));
    }

    @Test
    void testToStringUnknownCommand() {

import "fmt"

type s3Error struct {
	code       string
	message    string
	statusCode int
	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}

				}
			}
		}
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	// We do not allow offsetting into extracted files.
	if opts.PartNumber != 0 {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidPartNumber), r.URL)
		return
	}

	if r.Header.Get(xhttp.Range) != "" {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidRange), r.URL)
		return
	}

package json

type s3Error struct {
	code       string
	message    string
	statusCode int
	cause      error
}

func (err *s3Error) Cause() error {
	return err.cause
}

func (err *s3Error) ErrorCode() string {
	return err.code
}

func (err *s3Error) ErrorMessage() string {
	return err.message
}

func (err *s3Error) HTTPStatusCode() int {
	return err.statusCode
}

ECL0068=InvalidKeyException occurred, because {0}
ECL0069=NoSuchPaddingException occurred, because {0}
ECL0070=Field({1}) of class({0}) not found
ECL0071=SQLException(Message=[{0}], ErrorCode={1}, SQLState={2}) occurred
ECL0072=SQLException(SQL=[{0}], Message=[{1}], ErrorCode={2}, SQLState={3}) occurred
ECL0091=Illegal URL({0})

            assertTrue(result.contains("command=SMB_COM_TREE_CONNECT_ANDX"));
            assertTrue(result.contains("errorCode="));
            // Should show non-zero error code
            assertTrue(result.contains("errorCode=0x00000001") || result.contains("errorCode=1"));
        }

        @Test
        @DisplayName("Test toString with all command types")
        void testToStringAllCommands() {