I am trying to connect to HSQLDB by running a target from build file. My build file looks like this. I think my URL arg in the target to connect to db is incorrect could any one help me to connect to HSQLDB with its default username(sa) and password

<target name="hsqldb-gui" description="Brings up the hsqldb admin tool">
<property name="database.urlparams" value="?user=sa&amp;password="/>
<java
classname="org.hsqldb.util.DatabaseManagerSwing"
fork="yes"
classpathref="build.class.path"
failonerror="true">
<arg value="-url"/>
<arg value="jdbc:hsqldb:hsql://localhost${database.urlparams}" />
<arg value="-driver"/>
<arg value="org.hsqldb.jdbcDriver"/>
</java>
</target>


hsqldb-gui:
[java] java.sql.SQLException: Connection is broken: localhost?user=sa&password=
[java] at org.hsqldb.Trace.getError(Unknown Source)
[java] at org.hsqldb.Trace.error(Unknown Source)
[java] at org.hsqldb.jdbcConnection.reconnectHSQL(Unknown Source)
[java] at org.hsqldb.jdbcConnection.openHSQL(Unknown Source)
[java] at org.hsqldb.jdbcConnection.<init>(Unknown Source)
[java] at org.hsqldb.jdbcDriver.connect(Unknown Source)
[java] at java.sql.DriverManager.getConnection(Unknown Source)
[java] at java.sql.DriverManager.getConnection(Unknown Source)
[java] at org.hsqldb.util.ConnectionDialogSwing.createConnection(Unknown Source)
[java] at org.hsqldb.util.DatabaseManagerSwing.main(Unknown Source)
BUILD SUCCESSFUL
Total time: 5 seconds

I got it!!! I changed the database url to jdbc:hsqldb:hsql instead of jdbc:hsqldb:hsql://localhost and it works fine now.