Hello,
I keep this error:
javax.naming.NamingException: Could not dereference object [Root exception is
java.lang.NullPointerException]
at
org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1152)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:707)
at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:589)
at javax.naming.InitialContext.lookup(InitialContext.java:351)
at com.kt.dao.DBConnection.doConnection(DBConnection.java:46)
at com.kt.dao.MakeConnectionTest.main(MakeConnectionTest.java:17)
Caused by: java.lang.NullPointerException
at
org.jnp.interfaces.NamingContextFactory.getObjectInstance(NamingContextFactory.java:83)
at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304)
at
org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1127)
at
org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1144)
... 5 more
I am running on JBoss 4.2.0GA
using JDK 1.5
DB is MySQL5.0
here is my code:
public Hashtable doEnvironment(){
Hashtable env = new Hashtable();
env.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
env.put(Context.PROVIDER_URL, "jnp://localhost:1099");
return env;
}
public String doConnection(Hashtable env){
try{
Reference ref = new Reference("javax.sql.DataSource",
"org.jnp.interfaces.NamingContextFactory", null);
System.out.println("step 1");
Context ctx= new InitialContext(env);
ctx.rebind("java:MySQLDS", ref);
//ctx = new InitialContext();
System.out.println("step 2");
DataSource ds = (DataSource)ctx.lookup("java:MySQLDS");
System.out.println("step 3 " +
obj.getClass().getName().toString());
}
catch(Exception ex){
ex.printStackTrace();
}
return null;
It nevers gets to step 3...
Is there something wrong with what I am doing? Please help
LC
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