Re: JNDI lookup returns NamingException
Many thanks to Doug and Seven.
The core problem on our Windows machines was that we neglected to put a
entry in the ROOT.xml in the Documents and Settings\.
directory.
On the Linux servers (running 5.5), we needed to put a entry
in the Context.xml under META-INF.
And, to think we worked for several hours on such a simple problem.
Thanks again,
Carl
- Original Message -
From: "Parsons Technical Services" <[EMAIL PROTECTED]>
To: "Tomcat Users List"
Sent: Tuesday, February 15, 2005 11:16 PM
Subject: Re: JNDI lookup returns NamingException
> Did you put ResourceLinks in your Default context or the Apps context?
>
> If not, you will not be able to see the resource.
>
>
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/config/globalresources.html
>
> And the link that is in your server.xml shouldn't be there or anywhere.
See
> above link.
>
> Doug
>
>
> - Original Message -
> From: "Carl" <[EMAIL PROTECTED]>
> To: "Tomcat User Group"
> Sent: Tuesday, February 15, 2005 4:41 PM
> Subject: JNDI lookup returns NamingException
>
>
> > For various reasons, I need to put a Hashtable as a resource in the
Tomcat
> > Context. I have modified the server.xml as follows (note the resource
> > entry
> > of "DBHashtable"):
> >
> >
> > > debug="0"/>
> > > className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
> > debug="0"/>
> >
> >
> >
> >
> >
> >
> >
> >
> > > 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
> >
> >
> >
> >
> > factory
> > com.tsr.factory.HashtableFactory
> >
> >
> >
> >
> >
> > > type="java.lang.Integer"/>
> >
> >
> >
> >
> >
> > > port="8080" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
> > enableLookups="false" redirectPort="8443" acceptCount="100"
> > debug="0" connectionTimeout="2"
> > disableUploadTimeout="true" />
> > > enableLookups="false" redirectPort="8443" debug="0"
> > protocol="AJP/1.3" />
> >
> >
> >
> >
> > > prefix="catalina_log." suffix=".txt"
> > timestamp="true"/>
> >
> > > debug="0" resourceName="UserDatabase"/>
> >
> > > unpackWARs="true" autoDeploy="true"
> > xmlValidation="false" xmlNamespaceAware="false">
> >
> > > directory="logs" prefix="localhost_log." suffix=".txt"
> > timestamp="true"/>
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> > My application accesses this resource (well, tries to) using the
following
> > code:
> >
> > try {
> > Context ctx = new InitialContext();
> > if(ctx == null ){
> > System.out.println("Boom - No Context");
> > throw new NamingException("No Context - No DataBase Exists");
> > }
> >
> > Context envCtx = (Context)ctx.lookup("java:comp/env");
> > Object ud = (Object)envCtx.lookup("DBHashtable");
> > }catch (NamingException ne){
> > ne.printStackTrace();
> > // throw new SQLException("Datasource Not Found");
> > }
> >
> > It fails of the line "Object ud = (Object)envCtx.lookup("DBHashtable");"
> > with the following error:
> >
> > javax.naming.NamingException: Cannot create resource instance
> > at
> >
org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFa
> > ctory.java:99)
> > at
> > javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301)
> > at org.apache.naming.NamingContext.lookup(NamingContext.java:791)
> > at org.apache.naming.NamingContext.lookup(NamingContext.java:151)
> > at LoginServlet.doPost(LoginServlet.java:37)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> > at
> >
org.apache.catalina.core.ApplicationFilterChain.in
Re: JNDI lookup returns NamingException
Did you put ResourceLinks in your Default context or the Apps context?
If not, you will not be able to see the resource.
http://jakarta.apache.org/tomcat/tomcat-5.0-doc/config/globalresources.html
And the link that is in your server.xml shouldn't be there or anywhere. See
above link.
Doug
- Original Message -
From: "Carl" <[EMAIL PROTECTED]>
To: "Tomcat User Group"
Sent: Tuesday, February 15, 2005 4:41 PM
Subject: JNDI lookup returns NamingException
For various reasons, I need to put a Hashtable as a resource in the Tomcat
Context. I have modified the server.xml as follows (note the resource
entry
of "DBHashtable"):
factory
org.apache.catalina.users.MemoryUserDatabaseFactory
pathname
conf/tomcat-users.xml
factory
com.tsr.factory.HashtableFactory
My application accesses this resource (well, tries to) using the following
code:
try {
Context ctx = new InitialContext();
if(ctx == null ){
System.out.println("Boom - No Context");
throw new NamingException("No Context - No DataBase Exists");
}
Context envCtx = (Context)ctx.lookup("java:comp/env");
Object ud = (Object)envCtx.lookup("DBHashtable");
}catch (NamingException ne){
ne.printStackTrace();
// throw new SQLException("Datasource Not Found");
}
It fails of the line "Object ud = (Object)envCtx.lookup("DBHashtable");"
with the following error:
javax.naming.NamingException: Cannot create resource instance
at
org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFa
ctory.java:99)
at
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301)
at org.apache.naming.NamingContext.lookup(NamingContext.java:791)
at org.apache.naming.NamingContext.lookup(NamingContext.java:151)
at LoginServlet.doPost(LoginServlet.java:37)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at com.tsr.filters.RequestFilter.doFilter(RequestFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
Valve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:683)
at java.lang.Thread.run(Thread.java:534)
I know the factory is OK because I put a println in it and it seems to
work
(it only creates a Hashtable.)
Does anyone have an idea of what I have done wrong?
Thanks,
Carl Kabbe
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Re: JNDI lookup returns NamingException
Hi,
See if having a pair of the sequence of
instead of having Resource, Resource
ResourceParams, ResourceParams. Also the
seems to be misplaced, not that it will
much difference for your set-up.
aka_sergio
--- Carl <[EMAIL PROTECTED]> wrote:
> For various reasons, I need to put a Hashtable as a
> resource in the Tomcat
> Context. I have modified the server.xml as follows
> (note the resource entry
> of "DBHashtable"):
>
>
>
className="org.apache.catalina.mbeans.ServerLifecycleListener"
> debug="0"/>
>
className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener"
> debug="0"/>
>
>
>
>
>
> type="java.lang.Integer" value="30"/>
>
>
> type="org.apache.catalina.UserDatabase"
> description="User database that can be updated and
> saved">
>
> type="java.util.Hashtable"/>
>
>
> factory
>
org.apache.catalina.users.MemoryUserDatabaseFactory
>
>
> pathname
> conf/tomcat-users.xml
>
>
>
>
> factory
> com.tsr.factory.HashtableFactory
>
>
>
>
>
> global="simpleValue"
> type="java.lang.Integer"/>
>
>
>
>
>
> port="8080" maxThreads="150" minSpareThreads="25"
> maxSpareThreads="75"
> enableLookups="false" redirectPort="8443"
> acceptCount="100"
> debug="0" connectionTimeout="2"
> disableUploadTimeout="true" />
> enableLookups="false" redirectPort="8443" debug="0"
> protocol="AJP/1.3" />
>
> debug="0">
>
>
> className="org.apache.catalina.logger.FileLogger"
> prefix="catalina_log." suffix=".txt"
> timestamp="true"/>
>
>
className="org.apache.catalina.realm.UserDatabaseRealm"
> debug="0" resourceName="UserDatabase"/>
>
> unpackWARs="true" autoDeploy="true"
> xmlValidation="false" xmlNamespaceAware="false">
>
> className="org.apache.catalina.logger.FileLogger"
> directory="logs" prefix="localhost_log."
> suffix=".txt"
> timestamp="true"/>
>
>
>
>
>
>
>
>
>
>
> My application accesses this resource (well, tries
> to) using the following
> code:
>
> try {
> Context ctx = new InitialContext();
> if(ctx == null ){
> System.out.println("Boom - No Context");
> throw new NamingException("No Context - No DataBase
> Exists");
> }
>
> Context envCtx =
> (Context)ctx.lookup("java:comp/env");
> Object ud = (Object)envCtx.lookup("DBHashtable");
> }catch (NamingException ne){
> ne.printStackTrace();
> // throw new SQLException("Datasource Not Found");
> }
>
> It fails of the line "Object ud =
> (Object)envCtx.lookup("DBHashtable");"
> with the following error:
>
> javax.naming.NamingException: Cannot create resource
> instance
> at
>
org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFa
> ctory.java:99)
> at
>
javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301)
> at
>
org.apache.naming.NamingContext.lookup(NamingContext.java:791)
> at
>
org.apache.naming.NamingContext.lookup(NamingContext.java:151)
> at LoginServlet.doPost(LoginServlet.java:37)
> at
>
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
> at
>
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
> at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:237)
> at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:157)
> at
>
com.tsr.filters.RequestFilter.doFilter(RequestFilter.java:78)
> at
>
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
> FilterChain.java:186)
> at
>
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
> ain.java:157)
> at
>
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
> va:214)
> at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> at
>
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
> Valve.java:198)
> at
>
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
> va:152)
> at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> at
>
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137
> )
> at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
> at
>
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117
> )
> at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:102)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> at
>
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
> :109)
> at
>
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
> t.java:104)
> at
>
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
> at
>
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
>
=== message truncated ===
JNDI lookup returns NamingException
For various reasons, I need to put a Hashtable as a resource in the Tomcat
Context. I have modified the server.xml as follows (note the resource entry
of "DBHashtable"):
factory
org.apache.catalina.users.MemoryUserDatabaseFactory
pathname
conf/tomcat-users.xml
factory
com.tsr.factory.HashtableFactory
My application accesses this resource (well, tries to) using the following
code:
try {
Context ctx = new InitialContext();
if(ctx == null ){
System.out.println("Boom - No Context");
throw new NamingException("No Context - No DataBase Exists");
}
Context envCtx = (Context)ctx.lookup("java:comp/env");
Object ud = (Object)envCtx.lookup("DBHashtable");
}catch (NamingException ne){
ne.printStackTrace();
// throw new SQLException("Datasource Not Found");
}
It fails of the line "Object ud = (Object)envCtx.lookup("DBHashtable");"
with the following error:
javax.naming.NamingException: Cannot create resource instance
at
org.apache.naming.factory.ResourceEnvFactory.getObjectInstance(ResourceEnvFa
ctory.java:99)
at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:301)
at org.apache.naming.NamingContext.lookup(NamingContext.java:791)
at org.apache.naming.NamingContext.lookup(NamingContext.java:151)
at LoginServlet.doPost(LoginServlet.java:37)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:237)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at com.tsr.filters.RequestFilter.doFilter(RequestFilter.java:78)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Application
FilterChain.java:186)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterCh
ain.java:157)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.ja
va:214)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContext
Valve.java:198)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.ja
va:152)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117
)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:102)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java
:109)
at
org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContex
t.java:104)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConne
ction(Http11Protocol.java:705)
at
org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.jav
a:683)
at java.lang.Thread.run(Thread.java:534)
I know the factory is OK because I put a println in it and it seems to work
(it only creates a Hashtable.)
Does anyone have an idea of what I have done wrong?
Thanks,
Carl Kabbe
--
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Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.8 - Release Date: 2/14/2005
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