Omit Schema in DERBY Request

I created a database called "movie_db", set the default schema for APP. Then create a sample table named "USERS".

My DB connection is as follows:

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">

    <property name="driverClassName" value="org.apache.derby.jdbc.ClientDriver"/>
    <property name="url" value="jdbc:derby://localhost:1527/movie_db"/>        
    <property name="username" value="root"/>
    <property name="password" value="pass"/>
</bean>

Now I want to write some tests and try to execute the following query:

SELECT * FROM USERS;

What I get:

java.sql.SQLSyntaxErrorException: Table/View 'USERS' does not exist.

When I specify the exact scheme that I use:

SELECT * FROM APP.USERS

everything is working fine.

How can I omit the schema name in my query?

UPDATE: As Brian said, I created a user with the name of my default scheme and log in with that name. This is the easiest way to omit the schema name in the query. But if I want to use multiple circuits, the only way is to explicitly set the circuit.