int NUM_VERSIONS = 3000;
long ID = 10426;

com.liferay.portal.model.User user = com.liferay.portal.service.UserServiceUtil.getUserById(
	com.liferay.portal.security.permission.PermissionThreadLocal.getPermissionChecker().getUserId());

com.liferay.portal.service.ServiceContext sc = new com.liferay.portal.service.ServiceContext();
sc.setUserId(user.getUserId());
sc.setScopeGroupId(user.getGroupId());
com.liferay.portal.service.ServiceContextThreadLocal.pushServiceContext(sc);

com.liferay.portlet.journal.model.JournalArticle journalArticle = com.liferay.portlet.journal.service.JournalArticleLocalServiceUtil.getArticle(ID);

long start = System.currentTimeMillis();
long end = start;
for (int i = 0; i < NUM_VERSIONS; i++) {
	long it_start = System.currentTimeMillis();

	journalArticle = com.liferay.portlet.journal.service.JournalArticleLocalServiceUtil.updateArticle(
		sc.getUserId(),
		journalArticle.getGroupId(),
		journalArticle.getArticleId(),
		journalArticle.getVersion(),
		journalArticle.getContent(),
		sc
	);

	end = System.currentTimeMillis();

	System.out.println('It: '+i+' - Created article version: ' + journalArticle.getVersion() + ' Id: '+journalArticle.getId()+ ' time: '+(end-it_start)/1000);
}
System.out.println(NUM_VERSIONS+' versions created - spend time: '+(end-start)/1000);