Eclipselink: No suitable driver found in glassfish while it works in JavaSE - postgresql

Question

I'm trying to create EntityManager in my webapp, but it's failing with:
No suitable driver found for jdbc:postgresql:://localhost/database
However the same persistance unit and the same code for creating EntityManager works when I run it as JavaSE console application (from main() ).
Googling gave me several common problems causing that error:
JDBC url is wrong
Shouldn't be since it works from main
JDBC Driver is not in the class path
I can create a Class object using Class.forName("org.postgresql.Driver"); for the driver so I think it is in the classpath.
Other things I tried:
I thought maybe the driver jar from glassfish/lib and the webapp/WEB-INF/lib are conflicting somehow so I tried with both of them together and separately, no luck.
Recreated a small new webapp hoping the problem will go away, it didn't :-)
Inject #PersistanceUnit - also didn't work, don't know is it the same issue or I didn't use it properly as I'm still learning about injection and EJBs
Thanks
Full error:
javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.3.2.v20111125-r10461): org.eclipse.persistence.exceptions.DatabaseException Internal Exception: java.sql.SQLException: No suitable driver found for jdbc:postgresql://localhost/database Error Code: 0
Here is the code:
ManagedBean in webapp:
#ManagedBean
public class TestBean {
private String entry;
private String driver;
public String getFromDatabase(){
EntityManagerFactory emf = Persistence.createEntityManagerFactory("Unit1");
EntityManager em = emf.createEntityManager();
EntityTransaction tx = em.getTransaction();
tx.begin();
EntityOne one = new EntityOne();
one.id = 1;
one.entry = "Bla bla";
em.persist(one);
tx.commit();
em.close();
return "done";
}
public String createDriver(){
try {
Class d = Class.forName("org.postgresql.Driver");
driver = d.getName();
} catch (ClassNotFoundException e) {
driver = "Class not found";
return "";
}
return "";
}
public String getDriver() {
return driver;
}
public void setDriver(String driver) {
this.driver = driver;
}
public String getEntry() {
return entry;
}
public void setEntry(String entry) {
this.entry = entry;
}
}
Same code working in main:
public class Standalone {
public static void main(String[] args) {
EntityManagerFactory emf = Persistence.createEntityManagerFactory("Unit1");
EntityManager em = emf.createEntityManager();
EntityTransaction tx = em.getTransaction();
tx.begin();
EntityOne one = new EntityOne();
one.id = 1;
one.entry = "Bla bla";
em.persist(one);
tx.commit();
em.close();
}
}
persistence.xml:
<?xml version="1.0" encoding="UTF-8"?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="2.0">
<persistence-unit name="Unit1" transaction-type="RESOURCE_LOCAL">
<provider>org.eclipse.persistence.jpa.PersistenceProvider</provider>
<class>com.test.EntityOne</class>
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost/database"/>
<property name="javax.persistence.jdbc.user" value="darko"/>
<property name="javax.persistence.jdbc.password" value="sifra"/>
<property name="eclipselink.target-database" value="PostgreSQL"/>
</properties>
</persistence-unit>

Answer 1

Place the posgres jdbc driver into the lib of glassfish. Its something like this.
[glassfish_home]/glassfish/domains/YOUR_DOMAIN/lib/
Also, restart the server after this.