Tomcat JNDI problem

[Sergey Ponomarev <iw...@htc-cs.com>]

Hi,

I have Tomcat 4.0.1 on one machine and BAS 4.5.1 on other. I need
to get access to EJBs hosted on BAS. I have copied asrt.jar
and vbjorb.jar files from BAS installation to {tomcat-web-app}\WEB-INF\lib.
All works fine - I can get that EJBs.
After that I have to get access to database from my servlet yet. I
have configured resource in server.xml I need access to. But when I
try to create InitialContext object I get an error:

javax.naming.NoInitialContextException: Cannot instantiate class: org.apache.naming.java.javaURLContextFactory.
Root exception is java.lang.ClassCastException: org.apache.naming.java.javaURLContextFactory
        at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:659)
        at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:250)
        at javax.naming.InitialContext.init(InitialContext.java:226)
        at javax.naming.InitialContext.<init>(InitialContext.java:202)
        at com.thg.cockpit.report.ReportServlet.init(ReportServlet.java:52)
        at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:852)
        at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:615)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:201)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2344)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:170)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:462)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
        at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
        at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:1011)
        at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:1106)
        at java.lang.Thread.run(Unknown Source)

If I remove asrt.jar and vbjorb.jar, then I can create InitialContext
object with no problem. As I understand there is conflict between
Tomcat and BAS JNDI providers. What should I do to get access to EJBs
on BAS and DataSource resources on Tomcat?

Sergey Ponomarev
mailto:iwds@htc-cs.com


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