} else {            fidelity = false;        }         Attribute []attrs = reqAttrSet.toArray();        for (int i=0; i<attrs.length; i++) {            attr = attrs[i];            category = attr.getCategory();            if (fidelity == true) {                if (!service.isAttributeCategorySupported(category)) {                    notifyEvent(PrintJobEvent.JOB_FAILED);                    throw new PrintJobAttributeException(                        "unsupported category: " + category, category, null);                } else if                    (!service.isAttributeValueSupported(attr, flavor, null)) {                    notifyEvent(PrintJobEvent.JOB_FAILED);                    throw new PrintJobAttributeException(                        "unsupported attribute: " + attr, null, attr);                }            }            if (category == JobName.class) {                jobName = ((JobName)attr).getValue();            } else if (category == Copies.class) {                copies = ((Copies)attr).getValue();            } else if (category == Media.class) {                if (attr instanceof MediaSizeName &&                    service.isAttributeValueSupported(attr, null, null)) {                    mediaSize =                        MediaSize.getMediaSizeForName((MediaSizeName)attr);                }            } else if (category == OrientationRequested.class) {                orient = (OrientationRequested)attr;            }        }    }     /* Cancel PrinterJob jobs that haven't yet completed. */    public void cancel() throws PrintException {        synchronized (this) {            if (!printing) {                throw new PrintException("Job is not yet submitted.");            } else if (job != null && !printReturned) {                job.cancel();                notifyEvent(PrintJobEvent.JOB_CANCELED);                return;            } else {                throw new PrintException("Job could not be cancelled.");            }        }    } }

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