Wrong param was read for binaryStorage with type database

	...
 "binaryStorage" : {

	...
        "url" : {
                 "type" : "string",
                 "description" : "The URL to be used to establish the database connection.",
                 "required" : true,
                },
        },

 		public static final String CONNECTION_URL = "connectionURL";
		...

		public AbstractBinaryStore getBinaryStore() throws Exception {
	          ...
	            } else if (type.equalsIgnoreCase("database")) {
                String driverClass = binaryStorage.getString(FieldName.JDBC_DRIVER_CLASS);
                String connectionURL = binaryStorage.getString(FieldName.CONNECTION_URL);
		...
		

javax.jcr.RepositoryException: Error while starting 'FederatedRepository' repository: org.modeshape.jcr.value.binary.BinaryStoreException: java.sql.SQLException: The url cannot be null
	at org.modeshape.jcr.JcrRepository.login(JcrRepository.java:613)
	at org.modeshape.jcr.JcrRepository.login(JcrRepository.java:580)
	at org.modeshape.jcr.JcrRepository.login(JcrRepository.java:149)
	at org.modeshape.example.filesystem.ModeShapeExample.main(ModeShapeExample.java:64)
Caused by: java.lang.RuntimeException: org.modeshape.jcr.value.binary.BinaryStoreException: java.sql.SQLException: The url cannot be null
	at org.modeshape.jcr.value.binary.DatabaseBinaryStore.start(DatabaseBinaryStore.java:222)
	at org.modeshape.jcr.JcrRepository$RunningState.<init>(JcrRepository.java:1071)
	at org.modeshape.jcr.JcrRepository$RunningState.<init>(JcrRepository.java:966)
	at org.modeshape.jcr.JcrRepository.doStart(JcrRepository.java:354)
	at org.modeshape.jcr.JcrRepository.login(JcrRepository.java:611)
	... 3 more
Caused by: org.modeshape.jcr.value.binary.BinaryStoreException: java.sql.SQLException: The url cannot be null
	at org.modeshape.jcr.value.binary.DatabaseBinaryStore.connect(DatabaseBinaryStore.java:332)Shutting down engine ...

	at org.modeshape.jcr.value.binary.DatabaseBinaryStore.start(DatabaseBinaryStore.java:208)
	... 7 more
Caused by: java.sql.SQLException: The url cannot be null
	at java.sql.DriverManager.getConnection(DriverManager.java:554)
	at java.sql.DriverManager.getConnection(DriverManager.java:185)
	at org.modeshape.jcr.value.binary.DatabaseBinaryStore.connect(DatabaseBinaryStore.java:330)
	... 8 more