BC4J using Tomcat DataSource: ClassCast Exception

Hi
need help with this problem:
i have deployed a bc4j module to tomcat.
the module is confgured to use an excisting datasource within the servlets context.
everything works fine, like
o ApplicationModule is created (using the correct Datasource on Tomcat)
o a ViewObject is looked up by name
but here it starts to get messy:
executing the a query on the ViewObject leads to a ClassCast Exception (see below)
One additional remark:
The same code works fine, when using a Connection instead of a DataSource.
But this is J2EE, so why not use a DataSource ?
Thanks for any ideas
Volker
java.lang.ClassCastException: org.apache.commons.dbcp.DelegatingPreparedStatement
     at oracle.jbo.server.OracleSQLBuilderImpl.doStatementSetRowPrefetch(OracleSQLBuilderImpl.java:976)
     at oracle.jbo.server.DBTransactionImpl.createPreparedStatement(DBTransactionImpl.java:3346)
     at oracle.jbo.server.DBTransactionImpl2.createPreparedStatement(DBTransactionImpl2.java:425)
     at oracle.jbo.server.DBTransactionImpl.createReUsePreparedStatement(DBTransactionImpl.java:4173)
     at oracle.jbo.server.ViewObjectImpl.getPreparedStatement(ViewObjectImpl.java:7750)
     at oracle.jbo.server.QueryCollection.buildResultSet(QueryCollection.java:586)
     at oracle.jbo.server.QueryCollection.executeQuery(QueryCollection.java:547)
     at oracle.jbo.server.ViewObjectImpl.executeQueryForCollection(ViewObjectImpl.java:3422)
     at oracle.jbo.server.ViewRowSetImpl.execute(ViewRowSetImpl.java:663)
     at oracle.jbo.server.ViewRowSetImpl.executeQueryForMasters(ViewRowSetImpl.java:769)
     at oracle.jbo.server.ViewRowSetImpl.executeQuery(ViewRowSetImpl.java:706)
     at oracle.jbo.server.ViewObjectImpl.executeQuery(ViewObjectImpl.java:3363)
     at de.mtag.demo.server.Demo.start(Demo.java:88)

I know it´s been a long time since you've posted this question. But did you resolve this problem ? I'm having the exact same situation here.
Any help would be good.
Thanks a lot,
John

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Hi,
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<?xml version = '1.0' encoding = 'UTF-8'?>
<BC4JConfig>
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<AppModuleConfig name="BuyerModuleLocal">
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<ConnectionDefinition name="DB921C">
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<ENTRY name="ConnectionType" value="JDBC"/>
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<ENTRY name="ConnectionName" value="DB921C"/>
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<ENTRY name="DeployPassword" value="true"/>
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When I tried to run a testClient which uses the App Module it is failing giving me an exception saying could not lookup for the DataSource. In one of the detailed error messages, I got this error.
javax.naming.NoInitialContextException: Need to specify class name in environment or system property, or as an applet parameter, or in an application resource file: java.naming.factory.initial
I checked the "Configurations" window and it was having
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Could anyone tell me how to solve this issue. I did read the BC4J & JNDI Datasource configuration thread in the same forum and unfortunately that did not help.
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What does you test client code look like and can you give us the complete stack trace.
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Hi,
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Can you please me to resolve this issue? Am I missing any configuration or any mistake in my java code please suggest your suggestions.
Thanks

Hi,
I am trying to connect my local database using JNDI datasource in tomcat and spring
I have done the below configuration in Tomcat 7 server:
In tomcat server.xml (Path: E:\apache-tomcat-7.0.35\conf) I added the below configuration
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
<Resource name="jdbc/myApp" auth="Container"
type="javax.sql.DataSource"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:hr@localhost:1521:XE>"
username="testUser" password="password"
maxActive="10" maxIdle="5"
maxWait="60000" removeAbandoned="true"
removeAbandonedTimeout="60" logAbandoned="true"/>
In web.xml, I have added the below config:
<resource-ref>
<description>Oracle Spring JNDI Datasource</description>
<res-ref-name>jdbc/myApp</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
And in my Spring context xml (ws-context.xml), added below config:
<bean name="myDataSourceInJndi" class="org.springframework.jndi.JndiObjectFactoryBean">
<property name="jndiName" value="java:comp/env/jdbc/myApp"/>
</bean>
<jee:jndi-lookup id="dataSource" jndi-name="/jdbc/myApp" resource-ref="true"/>
In my Java code, I am trying the below code to connect DataBase:
Context initCtx = new InitialContext();
Context envCtx = (Context) initCtx.lookup("java:comp/env");
DataSource ds = (DataSource) envCtx.lookup("jdbc/myApp");
ds.getConnection();
But I am getting the below exception while executing ****ds.getConnection();***
java.lang.IllegalStateException: Connection factory returned null from createConnection
at org.apache.tomcat.dbcp.dbcp.PoolableConnectionFactory.makeObject(PoolableConnectionFactory.java:584)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.validateConnectionFactory(BasicDataSource.java:1556)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createPoolableConnectionFactory(BasicDataSource.java:1545)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.createDataSource(BasicDataSource.java:1388)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
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Thanks

How can I configure ang use JNDI datasource on Tomcat 4.0.x ?

How can I configure ang use JNDI datasource on Tomcat 4.0.x ?
Please help me , Thanks !

Hello ,
You need to go through the JNDI tutorial which you can access at the sun's site. It will explain all the things you need.
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Serious problem of jdbc-mysql connectivity using tomcat

hi everybody
i m in serious problem since last 15-20 days. i m trying hard to make the connection jdbc-mysql using tomcat with the help of a jsp test page but every time i am facing almost the similar probems listed below in detail:
to make sure that the jdrivers's .jar (mysql-connector-java-3.1.7-bin.jar) available for such connections working fine i have tried the above said connection without using tomcat....which is working fine...for this i have created a dummy database with a dummy table ..and written some queries in the .java file of my code which upon running inserts the specified values in the defined(dummy) database.
this is the confirmation that the classpath etc..are ok in regard to the mysql-connector-java-3.1.7-bin.jar
now i have placed a copy of this .jar file in to the commons/lib directory of the tomcat web server(which is suppossed to be the place for such external jars)
after doing so i have followed 2 methods :
method 1st:........
i have made aone more jar file from the following .java file....
import javax.naming.*;
import javax.sql.*;
import java.sql.*;
public class TestSQLLoad
String user = "Not Connected";
String pwd = "no pwd";
int id = -1;
public void init() {
try{
Context ctx = new InitialContext();
if(ctx == null ) {
throw new Exception("Boom - No Context");
DataSource ds = (DataSource)ctx.lookup("java:comp/env/jdbc/TestDB");
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Connection conn = ds.getConnection();
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if(rst.next()) {
user=rst.getString(1);
pwd=rst.getString(2);
id = rst.getInt(3);
conn.close();
}catch(Exception e) {
e.printStackTrace();
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public int getID()
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after compiling it at the cmd prompt i made a .jar file from the .class of it and named it MySQLLoad.jar...then i placed it also in to the commons/lib directory where the mysql-connector-java-3.1.7-bin.jar was already placed.
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server.xml



<Server port="8005" shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

<GlobalNamingResources>

<Environment name="simpleValue" type="java.lang.Integer" value="30"/>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>


<Service name="Catalina">

<Connector
port="80" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />


<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />

<Engine name="Catalina" defaultHost="localhost">
<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>
<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">
<Context path="/testdb" docBase="TOMCAT_HOME/webapps/tomcat-docs/testdb"
debug="5" reloadable="true" crossContext="true" >
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_DBTest_log." suffix=".txt"
timestamp="true"/>
<Resource name="jdbc/TestDB"
auth="Container"
type="javax.sql.DataSource"/>
<ResourceParams name="jdbc/TestDB">
<parameter>
<name>factory</name>
<value>org.apache.commons.dbcp.BasicDataSourceFactory</value>
</parameter>
<parameter>
<name>maxActive</name>
<value>10</value>
</parameter>
<parameter>
<name>maxIdle</name>
<value>5</value>
</parameter>
<parameter>
<name>maxWait</name>
<value>10000</value>
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<parameter>
<name>username</name>
<value>root</value>
</parameter>
<parameter>
<name>password</name>
<value>mysql</value>
</parameter>

<parameter>
<name>driverClassName</name>
<value>com.mysql.jdbc.Driver</value>
</parameter>
<parameter>
<name>url</name>
<value>jdbc:mysql://localhost/testdb?autoReconnect=true</value>
</parameter>
</ResourceParams>
</Context>
</Host>
</Engine>
</Service>
</Server>
and the other xml file i.e
web.xml is here:
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
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/web-app_2_4.xsd"
version="2.4">
<servlet>
<servlet-name>default</servlet-name>
<resource-ref>
<description>DB Connection</description>
<res-ref-name>jdbc/TestDB</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
<servlet-class>org.apache.catalina.servlets.DefaultServlet</servlet-cl ***>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<init-param>
<param-name>listings</param-name>
<param-value>true</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet>
<servlet-name>invoker</servlet-name>
<servlet-class>
org.apache.catalina.servlets.InvokerServlet
</servlet-class>
<init-param>
<param-name>debug</param-name>
<param-value>0</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet>
<servlet-name>jsp</servlet-name>
<servlet-class>org.apache.jasper.servlet.JspServlet</servlet-class>
<init-param>
<param-name>fork</param-name>
<param-value>false</param-value>
</init-param>
<init-param>
<param-name>xpoweredBy</param-name>
<param-value>false</param-value>
</init-param>
<load-on-startup>3</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>

<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>jsp</servlet-name>
<url-pattern>*.jspx</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>30</session-timeout>
</session-config>
<mime-mapping>
<extension>abs</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ai</extension>
<mime-type>application/postscript</mime-type>
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<mime-mapping>
<extension>aif</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aifc</extension>
<mime-type>audio/x-aiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>aiff</extension>
<mime-type>audio/x-aiff</mime-type>
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<mime-mapping>
<extension>aim</extension>
<mime-type>application/x-aim</mime-type>
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<mime-mapping>
<extension>art</extension>
<mime-type>image/x-jg</mime-type>
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<mime-mapping>
<extension>asf</extension>
<mime-type>video/x-ms-asf</mime-type>
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<mime-mapping>
<extension>asx</extension>
<mime-type>video/x-ms-asf</mime-type>
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<mime-mapping>
<extension>au</extension>
<mime-type>audio/basic</mime-type>
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<mime-mapping>
<extension>avi</extension>
<mime-type>video/x-msvideo</mime-type>
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<mime-mapping>
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<mime-type>video/x-rad-screenplay</mime-type>
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<mime-mapping>
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<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>body</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cdf</extension>
<mime-type>application/x-cdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cer</extension>
<mime-type>application/x-x509-ca-cert</mime-type>
</mime-mapping>
<mime-mapping>
<extension>class</extension>
<mime-type>application/java</mime-type>
</mime-mapping>
<mime-mapping>
<extension>cpio</extension>
<mime-type>application/x-cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>csh</extension>
<mime-type>application/x-csh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>css</extension>
<mime-type>text/css</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dib</extension>
<mime-type>image/bmp</mime-type>
</mime-mapping>
<mime-mapping>
<extension>doc</extension>
<mime-type>application/msword</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dtd</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dv</extension>
<mime-type>video/x-dv</mime-type>
</mime-mapping>
<mime-mapping>
<extension>dvi</extension>
<mime-type>application/x-dvi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>eps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>etx</extension>
<mime-type>text/x-setext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>exe</extension>
<mime-type>application/octet-stream</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gif</extension>
<mime-type>image/gif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gtar</extension>
<mime-type>application/x-gtar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>gz</extension>
<mime-type>application/x-gzip</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hdf</extension>
<mime-type>application/x-hdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htc</extension>
<mime-type>text/x-component</mime-type>
</mime-mapping>
<mime-mapping>
<extension>htm</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>html</extension>
<mime-type>text/html</mime-type>
</mime-mapping>
<mime-mapping>
<extension>hqx</extension>
<mime-type>application/mac-binhex40</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ief</extension>
<mime-type>image/ief</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jad</extension>
<mime-type>text/vnd.sun.j2me.app-descriptor</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jar</extension>
<mime-type>application/java-archive</mime-type>
</mime-mapping>
<mime-mapping>
<extension>java</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jnlp</extension>
<mime-type>application/x-java-jnlp-file</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpe</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpeg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jpg</extension>
<mime-type>image/jpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>js</extension>
<mime-type>text/javascript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jsf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>jspf</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>kar</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>latex</extension>
<mime-type>application/x-latex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>m3u</extension>
<mime-type>audio/x-mpegurl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mac</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>man</extension>
<mime-type>application/x-troff-man</mime-type>
</mime-mapping>
<mime-mapping>
<extension>me</extension>
<mime-type>application/x-troff-me</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mid</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>midi</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mif</extension>
<mime-type>application/x-mif</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mov</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>movie</extension>
<mime-type>video/x-sgi-movie</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp1</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp2</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mp3</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpa</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpe</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpeg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpega</extension>
<mime-type>audio/x-mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpg</extension>
<mime-type>video/mpeg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>mpv2</extension>
<mime-type>video/mpeg2</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ms</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>nc</extension>
<mime-type>application/x-netcdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>oda</extension>
<mime-type>application/oda</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pbm</extension>
<mime-type>image/x-portable-bitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pct</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pdf</extension>
<mime-type>application/pdf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pgm</extension>
<mime-type>image/x-portable-graymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pic</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pict</extension>
<mime-type>image/pict</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pls</extension>
<mime-type>audio/x-scpls</mime-type>
</mime-mapping>
<mime-mapping>
<extension>png</extension>
<mime-type>image/png</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnm</extension>
<mime-type>image/x-portable-anymap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>pnt</extension>
<mime-type>image/x-macpaint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppm</extension>
<mime-type>image/x-portable-pixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ppt</extension>
<mime-type>application/powerpoint</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ps</extension>
<mime-type>application/postscript</mime-type>
</mime-mapping>
<mime-mapping>
<extension>psd</extension>
<mime-type>image/x-photoshop</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qt</extension>
<mime-type>video/quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qti</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>qtif</extension>
<mime-type>image/x-quicktime</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ras</extension>
<mime-type>image/x-cmu-raster</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rgb</extension>
<mime-type>image/x-rgb</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rm</extension>
<mime-type>application/vnd.rn-realmedia</mime-type>
</mime-mapping>
<mime-mapping>
<extension>roff</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtf</extension>
<mime-type>application/rtf</mime-type>
</mime-mapping>
<mime-mapping>
<extension>rtx</extension>
<mime-type>text/richtext</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sh</extension>
<mime-type>application/x-sh</mime-type>
</mime-mapping>
<mime-mapping>
<extension>shar</extension>
<mime-type>application/x-shar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>smf</extension>
<mime-type>audio/x-midi</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sit</extension>
<mime-type>application/x-stuffit</mime-type>
</mime-mapping>
<mime-mapping>
<extension>snd</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>src</extension>
<mime-type>application/x-wais-source</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4cpio</extension>
<mime-type>application/x-sv4cpio</mime-type>
</mime-mapping>
<mime-mapping>
<extension>sv4crc</extension>
<mime-type>application/x-sv4crc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>swf</extension>
<mime-type>application/x-shockwave-flash</mime-type>
</mime-mapping>
<mime-mapping>
<extension>t</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tar</extension>
<mime-type>application/x-tar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tcl</extension>
<mime-type>application/x-tcl</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tex</extension>
<mime-type>application/x-tex</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texi</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>texinfo</extension>
<mime-type>application/x-texinfo</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tif</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tiff</extension>
<mime-type>image/tiff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tr</extension>
<mime-type>application/x-troff</mime-type>
</mime-mapping>
<mime-mapping>
<extension>tsv</extension>
<mime-type>text/tab-separated-values</mime-type>
</mime-mapping>
<mime-mapping>
<extension>txt</extension>
<mime-type>text/plain</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ulw</extension>
<mime-type>audio/basic</mime-type>
</mime-mapping>
<mime-mapping>
<extension>ustar</extension>
<mime-type>application/x-ustar</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xbm</extension>
<mime-type>image/x-xbitmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xht</extension>
<mime-type>application/xhtml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xhtml</extension>
<mime-type>application/xhtml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xml</extension>
<mime-type>text/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xpm</extension>
<mime-type>image/x-xpixmap</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xsl</extension>
<mime-type>text/xml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>xwd</extension>
<mime-type>image/x-xwindowdump</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wav</extension>
<mime-type>audio/x-wav</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svg</extension>
<mime-type>image/svg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>svgz</extension>
<mime-type>image/svg</mime-type>
</mime-mapping>
<mime-mapping>
<extension>vsd</extension>
<mime-type>application/x-visio</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wbmp</extension>
<mime-type>image/vnd.wap.wbmp</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wml</extension>
<mime-type>text/vnd.wap.wml</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmlc</extension>
<mime-type>application/vnd.wap.wmlc</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmls</extension>
<mime-type>text/vnd.wap.wmlscript</mime-type>
</mime-mapping>
<mime-mapping>

<extension>wmlscriptc</extension>
<mime-type>application/vnd.wap.wmlscriptc</mime-type>
</mime-mapping>
<mime-mapping>
<extension>wrl</extension>
<mime-type>x-world/x-vrml</mime-type>
</mime-mapping>
<mime-mapping>
<extension>Z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>z</extension>
<mime-type>application/x-compress</mime-type>
</mime-mapping>
<mime-mapping>
<extension>zip</extension>
<mime-type>application/zip</mime-type>
</mime-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
after all this i have taken a jsp page whose code is here:
(the mysql database used is named as "testdb" and the table name is "user" which is having fields name,password and id)
<html>
<head>
<title>DB Test</title>
</head>
<body>
<%
TestSQLLoad tst = new TestSQLLoad ( );
tst.init();
%>
<h2>Results</h2>
User <%= tst.getUser() %>
Pwd <%= tst.getPassword() %>
Id <%= tst.getID() %>
</body>
</html>
and placed it in to the Tomcat 5.5\webapps\tomcat-docs\testdb directory and saved as test-db.jsp
when i run this page on the browser i get a lot may errors stating
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.4 logs.
AND NOW WHEN just to get rid of such errords i try to include a statement
<%@ page import="pkg.TestSQLLoad" %> in the jsp page code (and also place the MySQLLoad.class file in a folder called pkg and place it in the same directory where the jsp page is )and make it look like
<html>
<head>
<%@ page import="pkg.TestSQLLoad" %>
<title>DB Test</title>
</head>
<body>
<%
TestSQLLoad tst = new TestSQLLoad ( );
tst.init();
%>
<h2>Results</h2>
User <%= tst.getUser() %>
Pwd <%= tst.getPassword() %>
Id <%= tst.getID() %>
</body>
</html>
now when i run it i get the following errors:
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
Only a type can be imported. pkg.TestSQLLoad resolves to a package
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
in response to the above error i have even tried placing the MySQLLoad.class directly in the testdb folder along with the jsp page without keeping it in a package named pkg and then importing directly as <@page import="MySQLLoad" %>
that too gave me the following errors
org.apache.jasper.JasperException: Unable to compile class for JSP
Generated servlet error:
The import TestSQLLoad cannot be resolved
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 12 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
and if i do not use the statement <%@ page import="MySQLLoad"%> then also i get the errors like
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 11 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
An error occurred at line: 11 in the jsp file: /testdb/test-db.jsp
Generated servlet error:
TestSQLLoad cannot be resolved or is not a type
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:288)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:296)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:245)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
THE 2nd Method:
in my second method i did the same changes in the web.xml and server.xml
then i took a jsp page with the following code:
<%@ page import="javax.sql.*,java.sql.*,javax.naming.*,com.mysql.jdbc.*" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> trial doc </TITLE>
</HEAD>
<BODY>
<h1>Trial Document</h1>
<% InitialContext context=new InitialContext( );
DataSource dataSource=(DataSource) context.lookup("java:comp/env/jdbc/testdb");
Connection conn=dataSource.getConnection();
Statement stmt=conn.createStatement();
ResultSet rset=stmt.executeQuery("select * from user");
if (rset.next()){
%>
<table width="100%" border="1">
<tr align="left">
<th>name</th> <th>password</th><th>id</th>
</tr>
<%
do {
%>
<tr><td> <%=rset.getString(1)%> </td>
<td><%=rset.getString(2) %></td>
<td><%=rset.getString(3) %></td></tr>
<%
} while (rset.next());
%>
</table>
<%
} else{
%>
No results from query
<%
rset.close();
stmt.close();
conn.close();
context.close();
%>
</BODY>
</HTML>
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type Connection is ambiguous
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type Statement is ambiguous
An error occurred at line: 15 in the jsp file: /testdb/Big1.jsp
Generated servlet error:
The type ResultSet is ambiguous
org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.j ava:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:328)
org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:389)
org.apache.jasper.compiler.Compiler.compile(C

thanx for ur response
as u said that the problem is more of a jsp page not getting compiled....
me also pointed towards the similar situation providing all the surrounding situations
which i have met and gone through
i m still thinking that problem may b in the tomcat's server.xml and web.xml as well
so better if u plz guide me in that regard
regards,
kuldeep

About BC4J on Tomcat..-_-

Hi..Everyone..
i have a BC4J JSP project.and use Tomcat 4.1.19.
How to set my tomcat to run BC4J project?? /_\
i look
"Deploying Web Applications to Apache Tomcat"
http://download-west.oracle.com/otn_hosted_doc/jdeveloper/904preview/packaging_deploying/dep_p_gwebappstomcat.html
but have error:
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: -1 in the jsp file: null
Generated servlet error:
[javac] Since fork is true, ignoring compiler setting.
[javac] Compiling 1 source file
[javac] Since fork is true, ignoring compiler setting.
[javac] javac: invalid flag: C:\Program
[javac] Usage: javac
[javac] where possible options include:
[javac] -g Generate all debugging info
[javac] -g:none Generate no debugging info
[javac] -g:{lines,vars,source} Generate only some debugging info
[javac] -nowarn Generate no warnings
[javac] -verbose Output messages about what the compiler is doing
[javac] -deprecation Output source locations where deprecated APIs are used
[javac] -classpath Specify where to find user class files
[javac] -sourcepath Specify where to find input source files
[javac] -bootclasspath Override location of bootstrap class files
[javac] -extdirs Override location of installed extensions
[javac] -d Specify where to place generated class files
[javac] -encoding Specify character encoding used by source files
[javac] -source Provide source compatibility with specified release
[javac] -target Generate class files for specific VM version
[javac] -help Print a synopsis of standard options
     at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:130)
     at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
     at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:345)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:357)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2415)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:223)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:594)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:392)
     at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:565)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:628)
     at java.lang.Thread.run(Thread.java:536)
Apache Tomcat/4.1.19

Install your JDK into a directory w/o spaces (i.e. C:\JDK1.3) and then set your JAVA_HOME to it. Looks like the space in the path to javac.exe is causing problems here.
Rob

Viewing Excel Files using Tomcat - Problem with caching

Hi all,
A small part of an application I'm writing has links to Excel files for users to view/download. I'm currently using Tomcat v5 as the web/app server and have some very simple code (an example is shown below) which calls the excel file.
<%@ page contentType = "application/vnd.ms-excel" %>
<%
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);
response.sendRedirect("file1.xls");
%>
This all works except but I'm having one big problem.
The xls file (file1.xls) is updated via a share on the server so each month, the xls file is overwritten with the same name but with different contents. I'm finding that when an update is made to the xls file and the user then attempts to view the new file in the browser they recieve only the old xls file. It's caching the xls file and I don't want it to. How can I fix this so that it automatically gives the user the new updated file.
The only way I've managed to get Tomcat to do this is to delete the work directory and delete the file from my IE temp folder and then restart Tomcat - this is a bit much!
Any help would be greatly appreciated.
Thanks.

I'd a problem with caching a few years back, for a servlet request which returned an SVG file.
As a workaround, I ended up putting appending "#" and a timestamp / random number after it. The browser assuming each request was new, and didn't use the cache.
Eg.
http://myserver/returnSVG.do#1234567
where 1234567 is a timestamp / random.
Not sure whether you can do this on a file based URL... but maybe worth a shot...
regards,
Owen

Error when using OC4J Datasource

Hi,
A customer is using a Servlet to run in an OC4j instance and is using EJB's for data DML.
To work around the possibility that XMLTypes are not supported we do an update in the DoPost.
public void ejbPostCreate(String mediumnummer, String inzender, String inhoud, PrlBerichttypeLocal prlBerichttypeLocal)
OracleConnection oconnection = null;
OraclePreparedStatement opstmt = null;
CLOB tempCLOB = null;
try
oconnection = (OracleConnection)getConnection();
String sql = "";
sql += "update prl_xml_berichten SET ";
sql += "INHOUD = XMLTYPE(?) where id = ?";
opstmt = (OraclePreparedStatement)oconnection.prepareCall(sql);
System.out.println(sql);
System.out.println("username : "+ oconnection.getMetaData().getUserName());
tempCLOB = CLOB.createTemporary(oconnection,true,CLOB.DURATION_SESSION);
Writer writer = tempCLOB.getCharacterOutputStream();
writer.write(inhoud);
writer.flush();
writer.close();
opstmt.setCLOB(1,tempCLOB);
opstmt.setLong(2,id.longValue());
boolean test = opstmt.execute();
tempCLOB.trim(0);
if (!test) System.out.println("Succes !!!!");
else System.out.println("Failure!!!");
// connection.commit();
catch (Exception exc)
System.out.println("Fout bij inhoud update ");
exc.printStackTrace();
finally
try
if (opstmt != null) opstmt.close();
if (oconnection != null) oconnection.close();
System.out.println("create dopost gedaan...");
catch (SQLException sqlex)
sqlex.getMessage();
System.out.println("Fout bij afsluiten dopost");
When they are using the getConnection from the Datasource:
private Connection getConnection() throws NamingException, SQLException
InitialContext context = new InitialContext();
DataSource dataSource = null;
// Look up data source object in directory service using JNDI
dataSource = (DataSource)context.lookup("jdbc/prlDS");
// Establishing db connection
return dataSource.getConnection();
The following error occurs:
username : PRL
create dopost gedaan...
com.evermind.server.rmi.OrionRemoteException: javax.ejb.EJBException: java.lang.AbstractMethodError: oracle.jdbc.OracleConnection oracle.jdbc.OracleConnection.unwrap()
java.rmi.RemoteException com.evermind.server.ejb.EJBUtils.getUserException(java.lang.Throwable, boolean) EJBUtils.java:263
java.lang.String CheckIn_StatelessSessionBeanWrapper8.checkInMessage(java.lang.String[]) CheckIn_StatelessSessionBeanWrapper8.java:126
When we change it to the connection setup with a hard string it does work:
private Connection getConnection() throws NamingException, SQLException
DriverManager.registerDriver(new OracleDriver());
return DriverManager.getConnection(Receiver.DATASOURCE);
Does anybody have an idea what the difference is with the direct connect string or the datasource from OC4J.
I attached the full error and the datasource.xml.
Regards,
Remco

Hi Remco,
You may not be aware of this, but the "Connection" returned from a "DataSource" is not necessarily the same as the one returned from "DriverManager". If I remember correctly, there was a similar question to yours posted to this forum, not so long ago. As I recall, Steve Button mentioned that there are emulated and non-emulated "Connection"s. I saw no mention in your post regarding which version of OC4J you are using, so I will assume the latest, stand-alone, production version (9.0.3). The Data Sources chapter of Oracle9iAS Containers for J2EE Services Guide has more details.
Good Luck,
Avi.

EJB 3.0 JNDI lookup results in Classcast Exception

Hello everybody,
I�m experiencing a strange problem when I want to retrieve a stateless session bean from a POJO in my enterprise app. I am using EJB 3.0, running on Glassfish build 33 and JDK 1.5.
I have successfully deployed my ear file which has the EJB.jar and the war file in it. I�m using JSF 1.2 in the web app and I am able to use all session beans using the injection annotation in my managed beans (this is how it is supposed to be according to the spec.). However, I now need to acces a stateless session bean from a POJO (non-managed or backing bean) which resides also in the war file. I�m using the following code to retrieve the session bean:
(where IMySessionBean = remote interface and MySessionBean is the implementation)
try {
ic = new InitialContext();
MySessionBean mybean = (MySessionBean )ic.lookup("env/IMySessionBean");
When casting the object from the lookup into MySessionBean I get a classcast Exception. However, I can see the session bean using the JNDI browser that comes with Glassfish and it�s deployed and available. If mybean is of type Object, I see that the lookup method returns a wrapper of my session bean.
Here�s what the stacktrace says:
java.lang.ClassCastException: com.myproject.ejb.interfaces._IMySessionBean_Wrapper
at ...
Do I miss something here and there�s more required to obtain a reference to the session bean? I�m pretty much stuck here and any help is greastly appreciated!
Thanks in advance!
Cheers,
Joerg

Hi Joerg,
In the session bean client view, the bean implementation class is never used. The client
only interacts with the local or remote interface.
Regarding the lookup, the more portable approach is to
lookup the ejb reference through the component environment of the web application
rather than doing a direct global lookup. If you have already defined any ejb reference
injections somewhere in the web app, you can look up the same dependencies via
java:comp/env. For example, if your managed bean has the following @EJB annotation :
@EJB(name="mybeanref") IMySessionBean beanRef;
You can look up the same underlying dependency in your utility class :
IMySessionBean beanRef = (IMySessionBean) new InitialContext().lookup
("java:comp/env/mybeanref");
Note that the portion of the lookup string after java:comp/env/ comes from the name() attribute
of @EJB. @EJB name() has the same semantics as the ejb-ref-name in the deployment
descriptor. You can find more info on these topics in our EJB FAQ :
https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html

Error Connecting to Database using Weblogic Datasource

Hi,
I am trying to connect to oracle database from my program using weblogic DataSource. I am using JDK1.3.1.08 , weblogic 7.
I am using the following code to get Connection object.
contextFactory ="weblogic.jndi.WLInitialContextFactory";
providerURL="t3://192.168.0.29:7001";
dataSource ="temp_ds";
if(contextFactory!=null)
properties.put(Context.INITIAL_CONTEXT_FACTORY,contextFactory);
if(providerURL !=null)
properties.put(Context.PROVIDER_URL, providerURL);
initCtx = new InitialContext(properties);
DataSource ds= (javax.sql.DataSource) initCtx.lookup(dataSource);
Connection con = ds.getConnection();
con.setAutoCommit(false);
I am getting the following error while running the program. Can any body help?
javax.naming.CommunicationException. Root exception is weblogic.socket.Unrecove
rableConnectException: [JDK 1.3 or higher required]
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(IOException.java:47)
at java.net.SocketException.<init>(SocketException.java:36)
at java.net.ConnectException.<init>(ConnectException.java:34)
at weblogic.socket.UnrecoverableConnectException.<init>(UnrecoverableCon
nectException.java:19)
at weblogic.rjvm.RJVMManager.checkVersion(RJVMManager.java:451)
at weblogic.rjvm.RJVMManager.findOrCreateRemoteInternal(RJVMManager.java
:201)
at weblogic.rjvm.RJVMManager.findOrCreate(RJVMManager.java:191)
at weblogic.rjvm.RJVMFinder.findOrCreateRemoteServer(RJVMFinder.java:203)
at weblogic.rjvm.RJVMFinder.findOrCreate(RJVMFinder.java:169)
at weblogic.rjvm.ServerURL.findOrCreateRJVM(ServerURL.java:262)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(Compi
led Code)
at weblogic.jndi.WLInitialContextFactoryDelegate.getInitialContext(WLIni
tialContextFactoryDelegate.java:221)
at weblogic.jndi.WLInitialContextFactory.getInitialContext(WLInitialCont
extFactory.java:149)
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:671)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:242)
at javax.naming.InitialContext.init(InitialContext.java:218)
at javax.naming.InitialContext.<init>(InitialContext.java:194)
at WeblogicTest.getConnection(WeblogicTest.java:40)
at WeblogicTest.<init>(WeblogicTest.java:23)
at WeblogicTest.main(WeblogicTest.java:18)
at WeblogicTest.printTableData(Compiled Code)
at WeblogicTest.<init>(WeblogicTest.java:24)
at WeblogicTest.main(WeblogicTest.java:18)
Regards
Kumar

I am not sure if this is the reason, but going thru the stack trace ...
javax.naming.CommunicationException. Root exception is weblogic.socket.Unrecove
rableConnectException: [JDK 1.3 or higher required]Make sure you have JDK 1.3 or higher installed.
Cheers
Sekar

Problem in hosting using tomcat 4.1.12

earlier i was using tomcat 3.2.1 for hosting virtually. recently i upgraded to tomcat 4.1.12 and on hosting a site I constantly get this error when i try to open the site from the browser. What can be the solution to my problem.
HTTP Status 500 - Internal Server Error
type Exception report
message Internal Server Error
description The server encountered an internal error (Internal Server Error) that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: Unable to compile class for JSP
An error occurred at line: 72 in the jsp file: /Login.jsp
Generated servlet error:
[javac] Compiling 1 source file
/tomcat/jakarta/work/Standalone/jispreports.ssnetcom.com/_/Login_jsp.java:7: package webreport.utils does not exist
import webreport.utils.*;
^
/tomcat/jakarta/work/Standalone/jispreports.ssnetcom.com/_/Login_jsp.java:94: package WebReportProperties does not exist
if(WebReportProperties.isDealerOptionSet.equalsIgnoreCase("true")) {       out.write("\r\n          \t");
^
Note: /tomcat/jakarta/work/Standalone/jispreports.ssnetcom.com/_/Login_jsp.java uses or overrides a deprecated API.
Note: Recompile with -deprecation for details.
2 errors
     at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:120)
     at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:293)
     at org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:313)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:324)
     at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:474)
     at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:184)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:289)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:240)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:260)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2396)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:180)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:172)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:469)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:641)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:174)
     at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:643)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:480)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1040)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1151)
     at java.lang.Thread.run(Thread.java:536)
Apache Tomcat/4.1.12

didi you set the right path to the jre?
there's a goog mailing llist for tomcat issues. go to the jakarta/tomcat website to subscribe. they might help you.

Help HTTP status 500 error using tomcat 5.0.16

Hi,
I am getting the below mentioned erors using Tomcat 5.0.16 in a directory structure like this
E:\sampleapp\WEB-INF
\WEB-INF\classes
\WEB-INF\lib
\WEB-INF\sourcefile
\WEB-INF\web.xml
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: Wrapper cannot find servlet class package1.structure.HelloServlet or a class it depends on
     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
     org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
     org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
     org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
     org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
     org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
     java.lang.Thread.run(Thread.java:534)
root cause
java.lang.ClassNotFoundException: package1.structure.HelloServlet
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1366)
     org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1213)
     org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:164)
     org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:211)
     org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:805)
     org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:696)
     org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:605)
     org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:677)
     java.lang.Thread.run(Thread.java:534)
Kindly let me know how to come around it.
Any help would be appreciated.
Thanks
AS

Hi ,
I got struct here, can any body help me out.
I am unable to tress it our, where was the error
Any help will be appreciated.
Sanju
HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: File "/WEB-INF/struts-tml.tld" not found
     org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:50)
     org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
     org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:114)
     org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:159)
     org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:418)
     org.apache.jasper.compiler.Parser.parseDirective(Parser.java:483)
     org.apache.jasper.compiler.Parser.parseElements(Parser.java:1543)
     org.apache.jasper.compiler.Parser.parse(Parser.java:126)
     org.apache.jasper.compiler.ParserController.doParse(ParserController.java:211)
     org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
     org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:146)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:286)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:267)
     org.apache.jasper.compiler.Compiler.compile(Compiler.java:255)
     org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:556)
     org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:293)
     org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:291)
     org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
     javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
note The full stack trace of the root cause is available in the Apache Tomcat/5.5.9 logs.
Apache Tomcat/5.5.9

Another ClassCast Exception!!

Hi,
          I waded though the earlier classcast exception discussions and felt that
          my case was slightly different so here it goes
          I am using Weblogic Server v 4.51.
          I have my application servlets in a jar file which is included in the
          servlet classpath in the weblogic.properties file.It is not in the
          system classpath.
          I have two scenarios which fail with identical exceptions.
          I have one servlet which on one type of request stores an object into
          the session
          and on another type of request retrieves it from the session.This object
          is of a type which we have created ChartHTML and is in a jar file which
          is also in the servlet classpath.When I retrieve the ChartHTML object
          from the session it throws a classcast exception.The code line is as
          follows
          ChartHTML = (ChartHTML) session.getValue("chart");
          I am not trying to change any classes in midsession or anything.I am
          able to
          get other values previously stored in the session but they are plain
          java Strings.
          This has worked for months under JRun.
          Any help will be appreciated
          Santosh


It could be in retreiving from the DB? If you have a binary type that you are storing text in, sometimes a class cast exception is thrown (though not always) if you try and push that straight into a String ie String s = resultSet.getString("actuallyABinaryFied");
It also depends on the DB and drivers you are using. My experience of this is with mySql and mm drivers
Just a thought...

Random classcast exception - com.sun.jndi.cosnaming.CNCtxFactory

Hi,
I am trying to use a remote ejb (weblogic 8.1.5/ jdk 14) from a j2se 1.5 rmi-iiop client.
If I use com.sun.jndi.cosnaming.CNCtxFactory to look up the remote home & then use the remote interface, I get the following error RANDOMly (i.e only some calls succeed).
java.lang.ClassCastException
     at xxx.equals(xxxjava:129)
     at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1471)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at weblogic.iiop.RMIMsgOutput.writeObject(RMIMsgOutput.java:117)
     at xxx.yyy_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:492)
     at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:108)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:435)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:430)
     at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:35)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
I had a look at IndirectionValueHashtable class. It looks like the classcast is happening because the "handle-to-object" map has non String values.
Could this be a corba compatabilty issue?
The problem doesn't occur if I use weblogic initial context factory & t3 protocol.
What is the best way to overcome this problem? I dont want to distribute weblogic.jar [from 8.1.5 server]. wlclient is okay.
thanks

Tony Zimmer <> writes:
Certainly looks like a bug, in which case you need to go through
support to get it fixed. Do however check that your objects are in
fact serializable (including all their fields).
andy
Tried a few more combinations. No luck so far.
classcast exception for some objects at some times
server: WebLogic Server 10.0 / Sun 1.5.0_06/ WinNT 6
client: Sun jdk 1.5.0_11/1.4.2_14
java.lang.ClassCastException: java.lang.String
     at xxxpack.client.PaymentReceipt.equals(PaymentReceipt.java:881)
     at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1836)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
     at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
     at weblogic.utils.io.ObjectStreamClass.writeFields(ObjectStreamClass.java:413)
     at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:235)
     at weblogic.corba.utils.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:182)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1957)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
     at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
     at weblogic.utils.io.ObjectStreamClass.writeFields(ObjectStreamClass.java:413)
     at weblogic.corba.utils.ValueHandlerImpl.writeValueData(ValueHandlerImpl.java:235)
     at weblogic.corba.utils.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:182)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1957)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1992)
     at weblogic.iiop.IIOPOutputStream.writeObject(IIOPOutputStream.java:2253)
     at xxxpack.server.ProcessPayment_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
     at weblogic.rmi.cluster.ClusterableServerRef.invoke(ClusterableServerRef.java:224)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:479)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:475)
     at weblogic.rmi.internal.BasicServerRef.access$300(BasicServerRef.java:59)
     at weblogic.rmi.internal.BasicServerRef$BasicExecuteRequest.run(BasicServerRef.java:1016)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:200)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:172)
server: WebLogic Server 8.1 SP6 / Sun 1.4.2_11 / WinNT 6
client jdk 1.4.2_14/1.5.0_11:
java.lang.ClassCastException
     at xxxpack.client.PurchaseAmount.equals(PurchaseAmount.java:148)
     at weblogic.corba.utils.IndirectionValueHashtable.get(IndirectionValueHashtable.java:119)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1471)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at com.sun.corba.se.internal.io.IIOPOutputStream.writeObjectField(IIOPOutputStream.java:685)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputClassFields(IIOPOutputStream.java:745)
     at com.sun.corba.se.internal.io.IIOPOutputStream.defaultWriteObjectDelegate(IIOPOutputStream.java:167)
     at com.sun.corba.se.internal.io.IIOPOutputStream.outputObject(IIOPOutputStream.java:526)
     at com.sun.corba.se.internal.io.IIOPOutputStream.simpleWriteObject(IIOPOutputStream.java:123)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValueInternal(ValueHandlerImpl.java:136)
     at com.sun.corba.se.internal.io.ValueHandlerImpl.writeValue(ValueHandlerImpl.java:116)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1593)
     at weblogic.iiop.IIOPOutputStream.write_value(IIOPOutputStream.java:1624)
     at weblogic.iiop.RMIMsgOutput.writeObject(RMIMsgOutput.java:117)
     at xxxpack.server.ProcessPayment_ehqjge_EOImpl_WLSkel.invoke(Unknown Source)
     at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:491)
     at weblogic.rmi.cluster.ReplicaAwareServerRef.invoke(ReplicaAwareServerRef.java:120)
     at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:434)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
     at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:429)
     at weblogic.rmi.internal.BasicExecuteRequest.execute(BasicExecuteRequest.java:35)
     at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:224)
     at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:183)
Do you have a list/ martix of client-server versions used for the bug fixes?
Thanks

Invoking RMI using Tomcat

Hello
i have a question but i do not know how to solve it.
i tried to implement a small Client and Server RMI standalone application and is working fine.
However know I would like to change the implementation and use Tomcat as the Server for the application.
i have implemented this and it does not work and i have no idea why..
i have a feeling i don't know how RMI works and I am turning if someone has an example of how to do it in Tomcat.
my sample implementation is below:
HelloWorldServer
public class HelloWorldServer extends UnicastRemoteObject implements HelloWorld {
     private static final long serialVersionUID = 1128707054026502754L;
     public HelloWorldServer() throws RemoteException {
          super();
     public String helloWorld() {
          return "Hello World from RMI server!";
     public static void main(String args[]) {
          System.out.println("HelloWorldServer main");
          try {
               if (System.getSecurityManager() == null) {
                    System.out.println(" System.getSecurityManager "
                              + System.getSecurityManager());
                    System.setSecurityManager(new RMISecurityManager());
               HelloWorldServer obj = new HelloWorldServer();
               Registry registry = LocateRegistry.getRegistry("localhost");
               registry.rebind("HelloWorld", obj);
          } catch (Exception e) {
               e.printStackTrace();
}init for Servlet
public class ServerMain extends HttpServlet {
     public void init() {
          try {
               HelloWorld mainServerClass = HelloWorldServer.class.newInstance();
          } catch (InstantiationException e) {
               e.printStackTrace();
          } catch (IllegalAccessException e) {
               e.printStackTrace();
}correct me..because i get error: RegistryImpl.lookup(RegistryImp.java:106)
can some please shed a light...
thnx

Hello
Actually I have not been able to do it.
And i have not understood what you meant when you said that
ejp wrote:
Your main() does a Naming.bind(). Your ServerMain doesn't.could you please elaborate more..
new to RMI..tried it for few hours. :-) thnx

BC4J using Tomcat DataSource: ClassCast Exception

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