Could you post your DataSource definition and lookup code?
Do you have to access the DS from a client or from a session bean?
It should work like this:
1. Have a "JDBC Resource" configured in Glassfish with JNDI Name=JNDI Name:
"jdbc/SomeDataSource"
(2. Client-Classpath:
GF v3: Have glassfish\modules\gf-client.jar in your classpath
GF v2: Have glassfish\lib\appserv-rt.jar in your classpath (not sure about that one)
)
3. Lookup:
InitialContext ic = new InitialContext();
DataSource dataSource = (DataSource)ic.lookup("jdbc/SomeDataSource");
Connection jdbcConnection = dataSource.getConnection();
-Matthias
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