Could not dereference object
Hi,
I would like to call a session bean in an ear from an app client in another ear. When I run the client, at line:
Object objref = initial.lookup("java:comp/env/ejb/Mod1");
I receive:
Could not dereference object
[java] javax.naming.NamingException: Could not dereference object [Root exception is javax.naming.CommunicationException [Root exception is java.lang.ClassNotFoundException: pl.poznan.put.cs.idss.oppfda.module.HomeInter (no security manager: RMI class loader disabled)]]
Almost the same is written in jmx-console->MBeanView.
To resolve that I could delete both bean interfaces in the client ear and put the path to the bean jar file in the client classpath, but I can't do that because I would like to deploy both ear on two different machines.
I found in the forum that I should turn on java security manager, so I did, I mean, I changed the end of the server starting script (run.sh) to
while [ $STATUS -eq 10 ]
do
# Execute the JVM
CONFIG=$1
if [ "$CONFIG" == "" ]; then CONFIG=default; fi
PF=../server/$CONFIG/conf/server.policy
OPTS=-Djava.security.manager
OPTS="$OPTS -Djava.security.policy=$PF"
echo JBOSS_CLASSPATH=$JBOSS_CLASSPATH
java $HOTSPOT $JAXP $OPTS -classpath "$JBOSS_CLASSPATH" org.jboss.Main "$@"
# "$JAVA" $JAVA_OPTS \
#-Djava.endorsed.dirs="$JBOSS_ENDORSED_DIRS" \
#-Djava.security.policy="../server/default/conf/server.policy" \
#-classpath "$JBOSS_CLASSPATH" \
#org.jboss.Main "$@"
STATUS=$?
# if it doesn't work, you may want to take a look at this:
# http://developer.java.sun.com/developer/bugParade/bugs/4465334.html
done
The server.policy file content is:
grant {
// Allow everything for now
permission java.security.AllPermission;
};
Then, the entry in jmx-console->MBeanView changed to:
+- MyModule (proxy: $Proxy73 implements pl.poznan.put.cs.idss.oppfda.module.HomeInter)
but the exception is still throwing.
What I should do to make it working, please? Any help will be appreciated.
Best regards,
Michal Palacz
P.S. The descriptors are as follows:
application-client.xml:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE application-client PUBLIC
'-//Sun Microsystems, Inc.//DTD J2EE Application Client 1.3//EN'
'http://java.sun.com/dtd/application-client_1_3.dtd'>
<application-client>
<display-name>OPPfDABroker</display-name>
<ejb-ref>
<ejb-ref-name>ejb/Mod1</ejb-ref-name>
<ejb-ref-type>Session</ejb-ref-type>
< home>pl.poznan.put.cs.idss.oppfda.broker.HomeInter</ home>
< remote>pl.poznan.put.cs.idss.oppfda.broker.RemoteInter</ remote>
</ejb-ref>
<resource-env-ref>
<resource-env-ref-name>jms/ModuleTopic</resource-env-ref-name>
<resource-env-ref-type>javax.jms.Topic</resource-env-ref-type>
</resource-env-ref>
</application-client>
jboss-client.xml:
<jboss-client>
<jndi-name>oppfda-client</jndi-name>
<ejb-ref>
<ejb-ref-name>ejb/Mod1</ejb-ref-name>
<jndi-name>MyModule</jndi-name>
</ejb-ref>
<resource-env-ref>
<resource-env-ref-name>jms/ModuleTopic</resource-env-ref-name>
<jndi-name>topic/ModuleTopic</jndi-name>
</resource-env-ref>
</jboss-client>
ejb-jar.xml:
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar xmlns="http://java.sun.com/xml/ns/j2ee" version="2.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/ejb-jar_2_1.xsd">
<display-name>OPPfDAEJBJAR</display-name>
<enterprise-beans>
< session>
<ejb-name>Mod1</ejb-name>
< home>pl.poznan.put.cs.idss.oppfda.module.HomeInter</ home>
< remote>pl.poznan.put.cs.idss.oppfda.module.RemoteInter</ remote>
<ejb-class>pl.poznan.put.cs.idss.oppfda.module.Mod1</ejb-class>
<session-type>Stateful</session-type>
<transaction-type>Bean</transaction-type>
<security-role-ref>
<role-name>UserRole</role-name>
<role-link>TheApplicationRole</role-link>
</security-role-ref>
</ session>
</enterprise-beans>
<assembly-descriptor>
<security-role>
The single application role
<role-name>TheApplicationRole</role-name>
</security-role>
<method-permission>
<role-name>UserRole</role-name>
<ejb-name>Mod1</ejb-name>
<method-name>*</method-name>
</method-permission>
</assembly-descriptor>
</ejb-jar>
jboss.xml:
<!DOCTYPE jboss PUBLIC
"-//JBoss//DTD JBOSS 4.0//EN"
"http://www.jboss.org/j2ee/dtd/jboss_4_0.dtd">
<enterprise-beans>
< session>
<ejb-name>Mod1</ejb-name>
<jndi-name>MyModule</jndi-name>
</ session>
</enterprise-beans>
