Hi,
well.. thanks Jeremiah - I followed your procedures and I'm close to giving
up, because I get the same output returned.
I deleted the res-ref lines out of ejb-jar.xml, I only have res-refs in
jboss.xml now.
And still this nullpointer exception when deploying Quiz.jar
I m posting this a last time to the group now.
Here are all the files, whoever wants to check it out and reproduce is
invited to.
Perhaps there is just some spelling error, perhaps its not "Default
Stateless SessionBean" but
"Default Stateless Session Bean" or whatever.
Ciao, Jubin
Here the output of jboss.exe :
[Auto deploy] Auto deploy of
file:/usr/local/linuxshare/jboss/deploy/Quiz.jar
[Container factory]
Deploying:file:/usr/local/linuxshare/jboss/deploy/Quiz.jar
[Container factory] Deploying Quiz
[Container factory] No configuration chosen. Using default configuration
[Container factory] java.lang.NullPointerException
[Container factory] at
org.jboss.ejb.ContainerFactory.deploy(ContainerFactor
y.java:214)
[Container factory] at
org.jboss.ejb.ContainerFactory.deploy(ContainerFactor
y.java:98)
[Container factory] at java.lang.reflect.Method.invoke(Native Method)
[Container factory] at
javax.management.MBeanServer.invoke(MBeanServer.java:
1635)
[Container factory] at
javax.management.MBeanServer.invoke(MBeanServer.java:
1501)
[Container factory] at
org.jboss.ejb.AutoDeployer.deploy(AutoDeployer.java:2
58)
[Container factory] at
org.jboss.ejb.AutoDeployer.run(AutoDeployer.java:194)
[Container factory] at
org.jboss.ejb.AutoDeployer.startService(AutoDeployer.
java:237)
[Container factory] at
org.jboss.util.ServiceMBeanSupport.preRegister(Servic
eMBeanSupport.java:147)
[Container factory] at
org.jboss.util.ServiceMBeanSupport.start(ServiceMBean
Support.java:86)
[Container factory] at java.lang.reflect.Method.invoke(Native Method)
[Container factory] at
javax.management.MBeanServer.preRegisterInvoker(MBean
Server.java:2253)
[Container factory] at
javax.management.loading.MLet.getMBeansFromURL(MLet.j
ava:208)
[Container factory] at
javax.management.loading.MLet.getMBeansFromURL(MLet.j
ava:385)
[Container factory] at
javax.management.MBeanServer.createMBean(MBeanServer.
java:721)
[Container factory] at org.jboss.Main.run(Main.java:109)
[Container factory] at org.jboss.Main$1.run(Main.java:81)
[Container factory] at
java.security.AccessController.doPrivileged(Native Me
thod)
[Auto deploy] Deployment
failed:file:/usr/local/linuxshare/jboss/deploy/Quiz.jar
[Container factory] at org.jboss.Main.main(Main.java:77)
[Auto deploy] org.jboss.ejb.DeploymentException: Could not deploy
file:/usr/loca
l/linuxshare/jboss/deploy/Quiz.jar, Cause:java.lang.NullPointerException
[Auto deploy] at java.lang.Throwable.<init>(Throwable.java:96)
[Auto deploy] at java.lang.Exception.<init>(Exception.java:44)
[Auto deploy] at
org.jboss.ejb.DeploymentException.<init>(DeploymentException.
java:34)
[Auto deploy] at
org.jboss.ejb.ContainerFactory.deploy(ContainerFactory.java:3
44)
[Auto deploy] at
org.jboss.ejb.ContainerFactory.deploy(ContainerFactory.java:9
8)
[Auto deploy] at java.lang.reflect.Method.invoke(Native Method)
[Auto deploy] at
javax.management.MBeanServer.invoke(MBeanServer.java:1635)
[Auto deploy] at
javax.management.MBeanServer.invoke(MBeanServer.java:1501)
[Auto deploy] at org.jboss.ejb.AutoDeployer.deploy(AutoDeployer.java:258)
[Auto deploy] at org.jboss.ejb.AutoDeployer.run(AutoDeployer.java:194)
[Auto deploy] at
org.jboss.ejb.AutoDeployer.startService(AutoDeployer.java:237
)
[Auto deploy] at
org.jboss.util.ServiceMBeanSupport.start(ServiceMBeanSupport.
java:86)
[Auto deploy] at
org.jboss.util.ServiceMBeanSupport.preRegister(ServiceMBeanSu
pport.java:147)
[Auto deploy] at java.lang.reflect.Method.invoke(Native Method)
[Auto deploy] at
javax.management.MBeanServer.preRegisterInvoker(MBeanServer.j
ava:2253)
[Auto deploy] at
javax.management.MBeanServer.createMBean(MBeanServer.java:721
)
[Auto deploy] at
javax.management.loading.MLet.getMBeansFromURL(MLet.java:385)
[Auto deploy] at
javax.management.loading.MLet.getMBeansFromURL(MLet.java:208)
[Auto deploy] at org.jboss.Main.run(Main.java:109)
[Auto deploy] at org.jboss.Main$1.run(Main.java:81)
[Auto deploy] at java.security.AccessController.doPrivileged(Native
Method)
[Auto deploy] at org.jboss.Main.main(Main.java:77)
Here the entry in my jboss.conf :
<MLET CODE="org.jboss.jdbc.XADataSourceLoader"
ARCHIVE="jboss.jar,jdbc6.5-1.2.jar" CODEBASE="../lib/ext/">
<ARG TYPE="java.lang.String" VALUE="postgres">
<ARG TYPE="java.lang.String"
VALUE="org.jboss.minerva.xa.XADataSourceImpl">
</MLET>
the only content in my jboss.jcml :
<mbean name="DefaultDomain:service=XADataSource,name=postgres">
<attribute name="URL">jdbc:postgresql:wapdb</attribute>
<attribute name="JDBCUser">onu</attribute>
<attribute name="Password">onu</attribute>
</mbean>
jboss.properties:
jdbc.drivers=org.hsql.jdbcDriver,jdbc.idbDriver,postgresql.Driver
ejb-jar.xml :
<?xml version="1.0" encoding="Cp1252"?>
<ejb-jar>
<description>jBoss wap framework application </description>
<display-name>wapplication</display-name>
<enterprise-beans>
<session>
<ejb-name>Quiz</ejb-name>
<jndi-name>Quiz</jndi-name>
<home>framework.application.QuizHome</home>
<remote>framework.application.Quiz</remote>
<ejb-class>framework.application.QuizBean</ejb-class>
<session-type>Stateless</session-type>
<transaction-type>Bean</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
and here the jboss.xml : (also in directory META-INF, shouldnt it be there
?)
<?xml version="1.0" encoding="Cp1252"?>
<jboss>
<resource-managers>
<resource-manager res-class="org.jboss.ejb.deployment.JDBCResource">
<res-name>wapdb</res-name>
<res-jndi-name>xa.postgres</res-jndi-name>
</resource-manager>
</resource-managers>
<enterprise-beans>
<session>
<ejb-name>Quiz</ejb-name>
<jndi-name>Quiz</jndi-name>
<configuration-name>Default Stateless Session Bean</configuration-name>
<resource-ref>
<res-ref-name>wapdb</res-ref-name>
<resource-name>wapdb</resource-name>
</resource-ref>
</session>
</enterprise-beans>
</jboss>
And here the code fragment executing the db lookup, but in fact, this is
never called, since I get the NullPointerException at Deploy time :
public QuizPattern getQuizPattern(int level) throws SQLException,
javax.naming.NamingException
{
/* lots of declarations cutted */
try {
/* try to get a connection from the database pool
named postgres */
naming = new InitialContext();
ds =
(DataSource)naming.lookup("java:comp/env/wapdb");
con = ds.getConnection();
st = con.createStatement();
/* get the count of interesting records */
rs=st.executeQuery("SELECT COUNT(question) FROM
wapquizview WHERE (difficulty = " + level +");");
/* stuff cutted again */
}
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