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Posted to user@geronimo.apache.org by Mohammad Shamsi <m....@gmail.com> on 2008/04/08 08:20:15 UTC
how to lookup ejb from jndi, in a stand alone client. ?
Hi All,
in Gmo 2.1, i want to lookup a EJB from a standalone client
i write this code :
Properties environment = new Properties();
environment.put("java.naming.factory.initial",
"org.openejb.client.RemoteInitialContextFactory");
environment.put("java.naming.provider.url", "localhost:4201");
try {
InitialContext context = new InitialDirContext(environment);
Object o = context.lookup("SampleBean");
but i got this exception :
javax.naming.AuthenticationException: Cannot read the response from the
server (OEJP/2.0) : null; nested exception is:
java.io.OptionalDataException
at org.openejb.client.JNDIContext.authenticate(JNDIContext.java:196)
at
org.openejb.client.JNDIContext.getInitialContext(JNDIContext.java:181)
any idea ?
--
sincerely yours
M. H. Shamsi
Re: how to lookup ejb from jndi, in a stand alone client. ?
Posted by David Jencks <da...@yahoo.com>.
There's an extremely eclipse-centric tutorial at http://
cwiki.apache.org/GMOxDOC21/developing-an-application-client-to-access-
ejb.html. It looks to me as if it does have a lot of information on
how to write the app if you are willing to either use eclipse or skip
the eclipse instructions.
I think there may be a sample in the testsuite but I'm not sure where.
I don't recall seeing the error you get before. What jvm are you
using? Is the geronimo-ejb_3.0_spec jar in your client classpath?
thanks
david jencks
On Apr 8, 2008, at 12:09 AM, Mohammad Shamsi wrote:
> openejb3 beta 2 (client and server) is in app lib.
>
> i change my code like this :
>
> Properties environment = new Properties();
> environment.setProperty
> (Context.INITIAL_CONTEXT_FACTORY,
> "org.apache.openejb.client.RemoteInitialContextFactory");
> environment.put(Context.PROVIDER_URL, "ejbd://localhost:
> 4201");
>
> try {
> InitialContext context = new InitialContext(environment);
>
> Object o = context.lookup("SampleBeanRemote");
>
> System.out.println(o.getClass().getName());
> } catch (NamingException e) {
> e.printStackTrace();
> }
>
>
> but i got another exception again :
>
> java.lang.ClassFormatError: Absent Code attribute in method that is
> not native or abstract in class file javax/ejb/NoSuchEJBException
> at java.lang.ClassLoader.defineClass1(Native Method)
>
>
> my bean class is SampleBean and it has to interface SampleRemote
> and SampleLocal
>
> where can i find a sample to lookup remotely from jndi ???
>
>
> On Mon, Apr 7, 2008 at 10:53 PM, David Jencks
> <da...@yahoo.com> wrote:
> I get confused by the jndi "directory" part but suspect that one
> problem is your use of InitialDirContext rather than InitialContext.
>
> Also are you sure you are using the openejb client library that
> goes with the server? While we've tried to keep compatibility with
> older versions there may have been some changes in the
> authentication bits.... I know there were in the code if not the
> protocol.
>
> thanks
> david jencks
>
>
> On Apr 7, 2008, at 11:20 PM, Mohammad Shamsi wrote:
>
> Hi All,
>
> in Gmo 2.1, i want to lookup a EJB from a standalone client
>
> i write this code :
>
> Properties environment = new Properties();
> environment.put("java.naming.factory.initial",
> "org.openejb.client.RemoteInitialContextFactory");
> environment.put("java.naming.provider.url", "localhost:4201");
>
> try {
> InitialContext context = new InitialDirContext
> (environment);
>
> Object o = context.lookup("SampleBean");
>
> but i got this exception :
>
> javax.naming.AuthenticationException: Cannot read the response from
> the server (OEJP/2.0) : null; nested exception is:
> java.io.OptionalDataException
> at org.openejb.client.JNDIContext.authenticate(JNDIContext.java:
> 196)
> at org.openejb.client.JNDIContext.getInitialContext
> (JNDIContext.java:181)
>
>
> any idea ?
> --
> sincerely yours
> M. H. Shamsi
>
>
>
>
> --
> sincerely yours
> M. H. Shamsi
Re: how to lookup ejb from jndi, in a stand alone client. ?
Posted by Mohammad Shamsi <m....@gmail.com>.
openejb3 beta 2 (client and server) is in app lib.
i change my code like this :
Properties environment = new Properties();
environment.setProperty(Context.INITIAL_CONTEXT_FACTORY,
"org.apache.openejb.client.RemoteInitialContextFactory");
environment.put(Context.PROVIDER_URL, "ejbd://localhost:4201");
try {
InitialContext context = new InitialContext(environment);
Object o = context.lookup("SampleBeanRemote");
System.out.println(o.getClass().getName());
} catch (NamingException e) {
e.printStackTrace();
}
but i got another exception again :
java.lang.ClassFormatError: Absent Code attribute in method that is not
native or abstract in class file javax/ejb/NoSuchEJBException
at java.lang.ClassLoader.defineClass1(Native Method)
my bean class is SampleBean and it has to interface SampleRemote and
SampleLocal
where can i find a sample to lookup remotely from jndi ???
On Mon, Apr 7, 2008 at 10:53 PM, David Jencks <da...@yahoo.com>
wrote:
> I get confused by the jndi "directory" part but suspect that one problem
> is your use of InitialDirContext rather than InitialContext.
>
> Also are you sure you are using the openejb client library that goes with
> the server? While we've tried to keep compatibility with older versions
> there may have been some changes in the authentication bits.... I know there
> were in the code if not the protocol.
>
> thanks
> david jencks
>
>
> On Apr 7, 2008, at 11:20 PM, Mohammad Shamsi wrote:
>
> Hi All,
> >
> > in Gmo 2.1, i want to lookup a EJB from a standalone client
> >
> > i write this code :
> >
> > Properties environment = new Properties();
> > environment.put("java.naming.factory.initial",
> > "org.openejb.client.RemoteInitialContextFactory");
> > environment.put("java.naming.provider.url", "localhost:4201");
> >
> > try {
> > InitialContext context = new InitialDirContext(environment);
> >
> > Object o = context.lookup("SampleBean");
> >
> > but i got this exception :
> >
> > javax.naming.AuthenticationException: Cannot read the response from the
> > server (OEJP/2.0) : null; nested exception is:
> > java.io.OptionalDataException
> > at org.openejb.client.JNDIContext.authenticate(JNDIContext.java:196)
> > at
> > org.openejb.client.JNDIContext.getInitialContext(JNDIContext.java:181)
> >
> >
> > any idea ?
> > --
> > sincerely yours
> > M. H. Shamsi
> >
>
>
--
sincerely yours
M. H. Shamsi
Re: how to lookup ejb from jndi, in a stand alone client. ?
Posted by David Jencks <da...@yahoo.com>.
I get confused by the jndi "directory" part but suspect that one
problem is your use of InitialDirContext rather than InitialContext.
Also are you sure you are using the openejb client library that goes
with the server? While we've tried to keep compatibility with older
versions there may have been some changes in the authentication
bits.... I know there were in the code if not the protocol.
thanks
david jencks
On Apr 7, 2008, at 11:20 PM, Mohammad Shamsi wrote:
> Hi All,
>
> in Gmo 2.1, i want to lookup a EJB from a standalone client
>
> i write this code :
>
> Properties environment = new Properties();
> environment.put("java.naming.factory.initial",
> "org.openejb.client.RemoteInitialContextFactory");
> environment.put("java.naming.provider.url", "localhost:4201");
>
> try {
> InitialContext context = new InitialDirContext
> (environment);
>
> Object o = context.lookup("SampleBean");
>
> but i got this exception :
>
> javax.naming.AuthenticationException: Cannot read the response from
> the server (OEJP/2.0) : null; nested exception is:
> java.io.OptionalDataException
> at org.openejb.client.JNDIContext.authenticate(JNDIContext.java:
> 196)
> at org.openejb.client.JNDIContext.getInitialContext
> (JNDIContext.java:181)
>
>
> any idea ?
> --
> sincerely yours
> M. H. Shamsi