Code used for storing report:

	private void createContentNode(URI uri, Map<String, ?> contentMap, Session session) throws RepositoryException {
		
		String path = uri2xpath(uri);
		Node root = session.getRootNode();
		LOGGER.info("storeContent: adding content for path="+path);
		String[] nodes = path.split("/");
		//test each node for creation
		Node base = root;
		for (String node : nodes) {
			if (!base.hasNode(node)) {
				// the node does not exist create it.
				LOGGER.debug("storeContent: adding node="+node);
				base.addNode(node);
			}
			base = base.getNode(node);
		}
		//The new node is the latest added node
		Node newNode = base;
		//here we declare all needed mixin
		newNode.addMixin(NodeType.MIX_CREATED);
		newNode.addMixin(NodeType.MIX_LAST_MODIFIED);
		LOGGER.debug("storeContent: defining mixin for the new node: "+NodeType.MIX_CREATED+" "+NodeType.MIX_LAST_MODIFIED);
		if (contentMap != null) {
			for (Map.Entry<String, ?> entry : contentMap.entrySet()) {
				Value[] v = parseValue(session, entry.getValue());
				LOGGER.debug("storeContent: adding value to the new node value="+v);
				newNode.setProperty(entry.getKey(), v);
			}
		}
	}


============================

LOGS:
2017-09-22 08:56:26,003 | INFO  | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.ContentRepositoryService | storeReport: storing report reportUri=aaa:report/G3604320170922732872
2017-09-22 08:56:26,003 | DEBUG | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | getReadWriteSession: a write session is open on the repository
2017-09-22 08:56:26,003 | DEBUG | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | startupRepository: Repository is already initialized. It will not be initialiized and configured again
2017-09-22 08:56:26,004 | INFO  | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | Logged in as defaultWIMFileBasedRealm/G36043 to a Jackrabbit repository.
2017-09-22 08:56:26,004 | INFO  | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | storeContent: adding content for path=aaa/report/G3604320170922732872
2017-09-22 08:56:26,022 | DEBUG | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | storeContent: adding node=G3604320170922732872
2017-09-22 08:56:26,039 | DEBUG | defaultWIMFileBasedRealm/advisor(defaultWIMFileBasedRealm/G36043) |  |  | WorkManager.JobLauncherWorkManager : 8 | c.o.r.s.JCRContentRepositoryService | storeContent: defining mixin for the new node: {http://www.jcp.org/jcr/mix/1.0}created {http://www.jcp.org/jcr/mix/1.0}lastModified

=========================

ERROR:
2017-09-22 08:58:10,035 | ERROR | defaultWIMFileBasedRealm/advisor |  |  | WebContainer : 7 | c.o.r.s.ContentRepositoryService | retrieveReport: Exception from the uderlying repository
javax.jcr.PathNotFoundException: aaa/report/G3604320170922732872
	at org.apache.jackrabbit.core.NodeImpl$8.perform(NodeImpl.java:2167) ~[jackrabbit-core.jar:2.8.0]
	at org.apache.jackrabbit.core.NodeImpl$8.perform(NodeImpl.java:2161) ~[jackrabbit-core.jar:2.8.0]
	at org.apache.jackrabbit.core.session.SessionState.perform(SessionState.java:216) ~[jackrabbit-core.jar:2.8.0]
	at org.apache.jackrabbit.core.ItemImpl.perform(ItemImpl.java:91) ~[jackrabbit-core.jar:2.8.0]
	at org.apache.jackrabbit.core.NodeImpl.getNode(NodeImpl.java:2161) ~[jackrabbit-core.jar:2.8.0]
	at com.odcgroup.repository.service.ContentRepositoryService.retrieveReportAsStream(ContentRepositoryService.java:109) ~[repository-impl.jar:TAP/8.1.06]

============================

Retrieval Code:
		@Override
	public InputStream retrieveReportAsStream(Session readOnlySession, URI reportUri) throws RepositoryException {
		try {
			String path = getJcrContentRepository().uri2xpath(reportUri);
	    	Node root = readOnlySession.getRootNode();
	        Node reportNode = root.getNode(path);
	        Node fileNode = reportNode.getNode(JCRContentRepository.FILE_NODE);
	        Node contentNode = fileNode.getNode(Node.JCR_CONTENT);
	        Property p = contentNode.getProperty(Property.JCR_DATA);
	        if (p.getType() == PropertyType.BINARY) {
	        	Binary report = p.getBinary();
	        	LOGGER.debug("retrieveReport: PDF size = "+report.getSize());
	        	return report.getStream();
	        } else {
	        	LOGGER.error("retrieveReport: report not found for URI="+reportUri+" at node="+path);
	        	throw new ContentNotFoundException(this, "retrieveReport", reportUri);
	        }
		} catch (javax.jcr.RepositoryException e) {
			LOGGER.error("retrieveReport: Exception from the uderlying repository", e);
			throw new RepositoryPersistenceException(this, "retrieveReport", e, new Object[]{reportUri});
		} 
	}