Don't get connection to HSQLDB database - database-connection

Question

I have already existed database. When I test my connection, I get this exception
java.sql.SQLInvalidAuthorizationSpecException: invalid authorization specification: SA
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCUtil.sqlException(Unknown Source)
at org.hsqldb.jdbc.JDBCConnection.<init>(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.getConnection(Unknown Source)
at org.hsqldb.jdbc.JDBCDriver.connect(Unknown Source)
at java.sql.DriverManager.getConnection(DriverManager.java:664)
at java.sql.DriverManager.getConnection(DriverManager.java:247)
at libraryapp.AppConnect.getConnection(AppConnect.java:17)
at libraryapp.TestAppConnection.main(TestAppConnection.java:7)
Caused by: org.hsqldb.HsqlException: invalid authorization specification: SA
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.rights.User.checkPassword(Unknown Source)
at org.hsqldb.rights.UserManager.getUser(Unknown Source)
at org.hsqldb.Database.connect(Unknown Source)
at org.hsqldb.DatabaseManager.newSession(Unknown Source)
My connection class
public class AppConnect {
private static final String url ="jdbc:hsqldb:file:src/main/resources/db/library";
private static final String driver ="org.hsqldb.jdbcDriver";
private static final String user = "SA";
private static final String password = " ";
public Connection getConnection() {
Connection connection = null;
try {
Class.forName(driver);
connection = DriverManager.getConnection(url, user, password);
connection.setAutoCommit(true);
System.out.println("Good connection");
} catch (ClassNotFoundException | SQLException e) {
e.printStackTrace();
System.out.println("Failed to establish the connection :(");
}
return connection;
}
}
In pom.xml i have this
<dependency>
<groupId>org.hsqldb</groupId>
<artifactId>hsqldb</artifactId>
<version>2.5.0</version>
</dependency>
If i change path to non-existent database, it's create and connect

Answer 1

The error means your connection URL finds the database but the combination of username and password is not correct.
The password you are using is a space, but the default password for a database is the empty string. Try changing it to:
private static final String password = "";
If that doesn't work, you need to find out what you originally used as username and password when you created the database.