private Document createDocumentVersionUsingDescriptor(final String fileName, final String contentMimeType, final byte[] fileContent, final boolean isMajorVersion, final String author, final Date creationDate, final Date lastModificationDate, final DocumentDescriptor documentDescriptor) throws DocumentationCreationException { final long length = fileContent == null ? 0 : fileContent.length; final long versionLabel = documentDescriptor.getLastVersionLabel() + 1; final DocumentVersionImpl documentVersionImpl = new DocumentVersionImpl(author, creationDate, lastModificationDate, isMajorVersion, documentDescriptor.getId(), fileName, contentMimeType, length, versionLabel); documentStorageService.storeDocumentContent(documentVersionImpl, fileContent); getDbSession().save(documentVersionImpl); documentDescriptor.setLastVersionId(Long.valueOf(documentVersionImpl.getId())); documentDescriptor.setLastVersionLabel(versionLabel); return toDocument(documentDescriptor, documentVersionImpl); }