The tomcat server can’t be started in Eclipse due to following error when
JDK 11 is used:

-Djava.endorsed.dirs=C:\ApacheTomcat 9.0.75\apache-tomcat-9.0.75\endorsed
is not supported. Endorsed standards and standalone APIs

in modular form will be supported via the concept of upgradeable modules.


Thanks,

Jenny

On Wed, Jun 14, 2023 at 3:28 AM Mark Thomas <ma...@apache.org> wrote:

> On 14/06/2023 00:20, Ying Jin wrote:
> > Mark,
> >
> > Thanks for the tip. I've resolved this error by using the way you
> > suggested along with the newer version of jdbc driver ojdbc8.jar and
> > modified the connection url in the right format.
> >
> > However, I encountered another problem trying to run the application in
> > Eclipse with JDK 11. Please see below for the error message.
> > I didn't have any problem running the application with JDK 8.
> > Any suggestions?
>
> None, since we can't see the error message.
>
> Embedded images don't work. Please paste the full stack trace and/or
> post it online somewhere we can read it.
>
> Mark
>
>
> > image.png
> >
> > Many thanks!
> > Jenny
> >
> >
> > On Mon, Jun 12, 2023 at 11:21 AM Mark Thomas <ma...@apache.org
> > <mailto:ma...@apache.org>> wrote:
> >
> >     On 12/06/2023 16:52, Ying Jin wrote:
> >      > BTW, the ojdbc6_g.jar has been put in the Tomcat9.0.75/lib folder
> as
> >      > well as in the project's WEB-INF/lib folder.
> >
> >     Don't do that. Put it *only* in $CATALINA_BASE/lib
> >
> >
> >      > On Mon, Jun 12, 2023 at 10:41 AM Ying Jin <jiny4...@gmail.com
> >     <mailto:jiny4...@gmail.com>
> >      > <mailto:jiny4...@gmail.com <mailto:jiny4...@gmail.com>>> wrote:
> >      >
> >      >     Mark,
> >      >
> >      >     Thanks for your reply! Please see below for the details. BTW,
> I
> >      >     removed the database connection info. for security reasons.
> >     The same
> >      >     data source configuration and jdbc driver "ojdbc6_g" works in
> the
> >      >     Weblogic 14 server.
> >      >
> >      >     web.xml:
> >      >        <resource-ref>
> >      >       <description>project datasource</description>
> >      >       <res-ref-name>jdbc/ariesDS</res-ref-name>
> >      >       <res-type>javax.sql.DataSource</res-type>
> >      >       <res-auth>Container</res-auth>
> >      >
> >      >     Tomcat 9.0.75 conf/context.xml:
> >
> >     Putting it there means you have created one instance of the resource
> >     for
> >     each deployed web application. You probably want to put it in:
> >
> >     $CATALINA_BASE/conf/<engine-name>/<host-name>/<context-name>.xml
> >
> >     But maybe wait until you have it working before fixing that.
> >
> >      >       <Resource auth="Container"
> >      >     driverClassName="oracle.jdbc.OracleDriver" maxIdle="10"
> >      >     maxTotal="20" maxWaitMillis="-1" name="jdbc/ariesDS"
> >     password="PW"
> >      >     type="javax.sql.DataSource"
> >      >     url="jdbc:oracle:thin@hostname:portNumber/servic name"
> >      >     username="userName"/>
> >      >
> >      >     Datasource lookup code:
> >      >
> >      >         Context initContext = new InitialContext();
> >      >          Context envContext  =
> >      >     (Context)initContext.lookup("java:/comp/env");
> >      >          DataSource ods =
> >     (DataSource)envContext.lookup("jdbc/ariesDS");
> >      >         if (ods==null)
> >      >          {
> >      >             System.out.println("ods = (OracleDataSource)
> >      >     envCtx.lookup('jdbc/ariesDS') is null");
> >      >             throw new Exception ("the data souce is null, error
> >     throwed.");
> >      >          }else{
> >      >             conn = ods.getConnection();
> >      >          }
> >      >
> >      >     The database version is Oracle 19C and I found out the Oracle
> >     jdbc
> >      >     driver should be ojdbc8.jar. If using this version of jar
> >     file, any
> >      >     code changes need to be done for the data source lookup code?
> >
> >     No. The lookup code should be fine.
> >
> >      >     The complete stacktrace:
> >      >     image.png
> >
> >     Embedded images don't work. Please paste the full stack trace and/or
> >     post it online somewhere we can read it.
> >
> >     Mark
> >
> >
> >      >
> >      >     Your help is greatly appreciated!
> >      >
> >      >     Thanks,
> >      >     Jenny
> >      >
> >      >     On Mon, Jun 12, 2023 at 3:26 AM Mark Thomas <ma...@apache.org
> >     <mailto:ma...@apache.org>
> >      >     <mailto:ma...@apache.org <mailto:ma...@apache.org>>> wrote:
> >      >
> >      >         On 11/06/2023 19:33, Ying Jin wrote:
> >      >          > Hello,
> >      >          >
> >      >          > We have an old java servlet web application which uses
> the
> >      >         "ojdbc6_g" jar
> >      >          > as Oracle jdbc driver and it works in Weblogic 14
> server.
> >      >         Recently, we need
> >      >          > to try to see if this application can be deployed to
> >     Tomcat
> >      >         or not.
> >      >          >
> >      >          > The JDBC data source has been configured in Tomcat
> 9.0.75
> >      >         server according
> >      >          > to instructions below,
> >      >          >
> >      >          >
> >      >
> >     https://tomcat.apache.org/tomcat-9.0-doc/jndi-resources-howto.html
> >     <https://tomcat.apache.org/tomcat-9.0-doc/jndi-resources-howto.html>
> >     <https://tomcat.apache.org/tomcat-9.0-doc/jndi-resources-howto.html
> >     <https://tomcat.apache.org/tomcat-9.0-doc/jndi-resources-howto.html
> >>
> >      >          >
> >      >          > Please see below for the error we encountered in the
> >     Tomcat 9
> >      >         deployment
> >      >          > and help shed some light on this problem. The Oracle
> >     database
> >      >         version is
> >      >          > 19c.
> >      >          >
> >      >          > Error: Cannot create JDBC driver of class
> >      >         'oracle.jdbc.OracleDriver' for
> >      >          > connect URL 'jdbc:oracle:thin@xxx
> >      >          >
> >      >          > java.sql.SQLException: Cannot create JDBC driver of
> class
> >      >          > 'oracle.jdbc.OracleDriver' for connect URL
> >     'jdbc:oracle:thin@
> >      >          >
> >      >
> >       <
> http://jdbc:oracle%3at...@vdb04ld.hs.it.vumc.io:10920/ARDEV.vumc.vanderbilt
> <
> http://jdbc:oracle%3at...@vdb04ld.hs.it.vumc.io:10920/ARDEV.vumc.vanderbilt>
> <
> http://jdbc:oracle%3at...@vdb04ld.hs.it.vumc.io:10920/ARDEV.vumc.vanderbilt
> <
> http://jdbc:oracle%3at...@vdb04ld.hs.it.vumc.io:10920/ARDEV.vumc.vanderbilt
> >>>
> >      >          > xxxx'
> >      >          > at
> >      >          >
> >      >
> >
>  
> org.apache.tomcat.dbcp.dbcp2.DriverFactory.createDriver(DriverFactory.java:74)
> >      >          > at
> >      >          >
> >      >
> >
>  
> org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(BasicDataSource.java:465)
> >      >          > at
> >      >          >
> >      >
> >
>  
> org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(BasicDataSource.java:529)
> >      >          > at
> >      >          >
> >      >
> >
>  
> org.apache.tomcat.dbcp.dbcp2.BasicDataSource.getConnection(BasicDataSource.java:710)
> >      >
> >      >         And the rest of the stack trace is?
> >      >
> >      >         ojdbc6_g.jar has been placed where in the file system?
> >      >
> >      >         That is a *very* old Oracle JDBC driver. It is also the
> debug
> >      >         version of
> >      >         the JAR. You might want to think about using the latest
> >     one for
> >      >         Oracle 19c.
> >      >
> >      >         The changes to the configuration are? (Yes, I know you
> >     said you
> >      >         followed
> >      >         the docs but we still need to know what you actually
> >     changed. Not
> >      >         everyone follows the docs correctly.)
> >      >
> >      >         Mark
> >      >
> >      >
> >
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