final UpdateOperation operation = new UpdateOperation(session);
        final SubMonitor sub = SubMonitor.convert(monitor, "Checking for application updates...", 200);
        IStatus status = operation.resolveModal(sub.newChild(100));
        if (status.getCode() == UpdateOperation.STATUS_NOTHING_TO_UPDATE) {
            LOG.debug("nothing to update");
            return status;
        }
        if (status.getSeverity() == IStatus.CANCEL) {
            LOG.debug("update - cancel");
            throw new OperationCanceledException();
        }
        if (status.getSeverity() != IStatus.ERROR) {
            LOG.debug("update - install");
            final ProvisioningJob job = operation.getProvisioningJob(null);
            status = job.runModal(sub.newChild(100));
            if (status.getSeverity() == IStatus.CANCEL) {
                LOG.debug("update - install - cancel");
                throw new OperationCanceledException();
            } else if (status.getSeverity() == IStatus.OK) {
                LOG.debug("update - install - ok");
            } else {
                LOG.debug("update - install - " + status.getSeverity() + "/" + status.getMessage());
            }
        }

status = job.runModal(sub.newChild(100));