URIs when using domain.xml at embedded glassfish - glassfish

Question

I'm embedding a Java EE 5 application using GlassFish 3.0.1. I already can deploy it (when using without specific configuration), but when trying to run server with the domain.xml (basically JAAS info), I get this error:
java.lang.IllegalArgumentException: URI is not absolute
My code is this (error points to the last line):
Server.Builder builder = new Server.Builder("ipc");
EmbeddedFileSystem.Builder efsb = new EmbeddedFileSystem.Builder();
File domainDir = new File( "domains/ipc-domain" );
File domainXML = new File( domainDir.getAbsoluteFile(), "config/domain.xml" );
efsb.instanceRoot( domainDir.getAbsoluteFile() );
efsb.configurationFile( domainXML.getAbsoluteFile() );
EmbeddedFileSystem efs = efsb.build();
builder.embeddedFileSystem(efs);
//Trying to set variable used at domain.xml (blind shot)
Properties props = new Properties();
props.setProperty( "com.sun.aas.instanceRoot" , domainDir.toURI().toString());
Server server = builder.build( props );
My domain.xml (specific part) have this:
<domain log-root="${com.sun.aas.instanceRoot}/logs" application-root="${com.sun.aas.instanceRoot}/applications" version="10.0">
<system-applications/>
<applications>
<application context-root="/IPC" location="${com.sun.aas.instanceRoot}/applications/IPC/" name="IPC" object-type="user">
<property name="keepSessions" value="false"></property>
<property name="defaultAppName" value="IPC"></property>
<module name="IPC">
<engine sniffer="ejb"></engine>
<engine sniffer="security"></engine>
<engine sniffer="jpa"></engine>
<engine sniffer="web"></engine>
</module>
</application>
</applications>
<resources>
<jdbc-connection-pool pool-resize-quantity="1" datasource-classname="org.apache.derby.jdbc.ClientDataSource" max-pool-size="2" res-type="javax.sql.DataSource" steady-pool-size="1" name="ipc-pool">
<property name="PortNumber" value="1527"></property>
<property name="ServerName" value="0.0.0.0"></property>
<property name="User" value="app"></property>
<property name="Password" value="root"></property>
<property name="DatabaseName" value="IPC"></property>
</jdbc-connection-pool>
<jdbc-resource pool-name="ipc-pool" jndi-name="jdbc/IPC"></jdbc-resource>
</resources>
I've already tried to change the parts related to the "${com.sun.aas.instanceRoot}" variable, but then I have small variations of the URI error. Any insight?