CMISRunTimeException Uploading 20 MB File

	public String uploadDocument(String docType, File file)throws IOException, SiteNotFoundException, DocumentLibraryNotFoundException {
		Map<String, String> props =new HashMap<String, String>();
		props.put(PropertyIds.OBJECT_TYPE_ID,"cmis:document");
		props.put(PropertyIds.NAME, file.getName());
		FileInputStream input =new FileInputStream(file); 
		CUDDocuments docsCUD =new CUDDocuments();
		Folder target = docsCUD.getTargetFolder(docType);  
		ContentStream contentStream = MySession.getSession().getObjectFactory()
				.createContentStream(file.getName(),-1,"application/octet-stream", input); 
		Document doc = target.createDocument(props, contentStream, VersioningState.MAJOR); 
		contentStream.getStream().close();return doc.getId();}