modules/api/src/main/java/org/apache/ignite/lang/IgniteCheckedException.java [144:220]:
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        super(message, cause);

        this.traceId = traceId;
        this.groupName = errorGroupByCode(code).name();
        this.code = code;
    }

    /**
     * Returns a group name of the error.
     *
     * @see #groupCode()
     * @see #code()
     * @return Group name.
     */
    public String groupName() {
        return groupName;
    }

    /**
     * Returns a full error code that includes the error's group and code, which uniquely identifies the problem within the group.
     * This is a combination of two most-significant bytes for the error group and
     * two least-significant bytes for the error code.
     *
     * @return Full error code.
     */
    @Override
    public int code() {
        return code;
    }

    /**
     * Returns a human-readable string that represents a full error code.
     * The string format is 'IGN-XXX-nnn', where 'XXX' is the group name and 'nnn' is the unique error code within the group.
     *
     * @return Full error code in a human-readable format.
     */
    public String codeAsString() {
        return ERR_PREFIX + groupName() + '-' + errorCode();
    }

    /**
     * Returns an error group.
     *
     * @see #code()
     * @return Error group.
     */
    @Override
    public short groupCode() {
        return extractGroupCode(code);
    }

    /**
     * Returns an error code that uniquely identifies a problem within a group.
     *
     * @see #code()
     * @see #groupCode()
     * @return Error code.
     */
    @Override
    public short errorCode() {
        return extractErrorCode(code);
    }

    /**
     * Returns a unique identifier of the exception.
     *
     * @return Unique identifier of the exception.
     */
    @Override
    public UUID traceId() {
        return traceId;
    }

    /** {@inheritDoc} */
    @Override
    public String toString() {
        return getClass().getName() + ": " + errorMessage(traceId, groupName, code, getLocalizedMessage());
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modules/api/src/main/java/org/apache/ignite/lang/IgniteException.java [185:260]:
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        super(message, cause);

        this.traceId = traceId;
        this.groupName = errorGroupByCode(code).name();
        this.code = code;
    }

    /**
     * Returns a group name of the error.
     *
     * @see #groupCode()
     * @see #code()
     * @return Group name.
     */
    public String groupName() {
        return groupName;
    }

    /**
     * Returns a full error code that includes the error's group and code, which uniquely identifies the problem within the group. This is a
     * combination of two most-significant bytes for the error group and two least-significant bytes for the error code.
     *
     * @return Full error code.
     */
    @Override
    public int code() {
        return code;
    }

    /**
     * Returns a human-readable string that represents a full error code. The string format is 'IGN-XXX-nnn', where 'XXX' is the group name
     * and 'nnn' is the unique error code within the group.
     *
     * @return Full error code in a human-readable format.
     */
    public String codeAsString() {
        return ERR_PREFIX + groupName() + '-' + errorCode();
    }

    /**
     * Returns an error group.
     *
     * @see #code()
     * @return Error group.
     */
    @Override
    public short groupCode() {
        return extractGroupCode(code);
    }

    /**
     * Returns an error code that uniquely identifies the problem within a group.
     *
     * @see #code()
     * @see #groupCode()
     * @return Error code.
     */
    @Override
    public short errorCode() {
        return extractErrorCode(code);
    }

    /**
     * Returns a unique identifier of the exception.
     *
     * @return Unique identifier of the exception.
     */
    @Override
    public UUID traceId() {
        return traceId;
    }

    /** {@inheritDoc} */
    @Override
    public String toString() {
        return getClass().getName() + ": " + errorMessage(traceId, groupName, code, getLocalizedMessage());
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