Timothy Rogers wrote:
>
> Hello,
>
> When I try to start up the Jonas server, I get:
> JOnAS: Cannot start Naming Manager
> java.lang.NullPointerException
> at org.objectweb.jonas.naming.NamingManager.
> <init>(NamingManager.java:75)
> at org.objectweb.jonas.server.Server.main(Server.java:78)
>
> The reason I get this is that my naming service is screwed up. But also,
> around line 75 in the NamingManager class, there is the following code:
> try {
> ictx = new InitialContext();
> myEnv = ictx.getEnvironment();
> } catch (NamingException n) {
> Throwable t = n.getRootCause();
> if (t.getMessage().startsWith("Connection refused to host:")) {
> Trace.errln("NamingManager: rmi registry not started ?");
> throw n;
> } else if (t.getMessage().startsWith("error during remote
> invocation")) {
> Trace.errln("NamingManager: jrmi registry not started ?");
> throw n;
> } else {
> Trace.errln("NamingManager: "+t.getMessage());
> throw n;
> }
> }
>
> The bug is where you call the getRootCause() method of the NamingException
> n. Sun's documentation says that getRootCause() "Returns the possibly null
> exception that caused this naming exception. If null, it means no root cause
> has been set for this naming exception."
>
> In my case, there is no root cause and the expression "Throwable t =
> n.getRootCause()" returns a null Throwable t. In the next line, you ask the
> Throwable t to get its message. Since the Throwable t is null, you get a
> NullPointerException.
>
> This can be fixed by adding the lines:
> if( t == null )
> t = n;
> after line 75:
> Throwable t = n.getRootCause();
>
> Then, people like me would be able to actually get a meaningful message from
> the NamingManager class and be able to move on to debug the naming service
> problem.
>
> --Timothy Rogers
Thank you Rogers,
there is actually a bug in the NamingManager.
It is fixed in the current CVS tree
Best regards,
--
Philippe
Philippe Coq Groupe Bulll/BullSoft/OpenMaster Phone: (33) 04 76 29 78
49
Bull S.A - 1 rue de Provence - 38432 Echirolles Cedex France
[EMAIL PROTECTED] http://www-frec.bull.com
Download our EJBServer at http://www.bullsoft.com/ejb
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