Mark,
On 12/14/25 12:54 AM, Mark Foley wrote:
OK, I've given up on my initial approach to getting Apache Tomcat 10.1.13 to
run. I'e wiped the 10.1.13 directory and re-installed from the tarfile
(originally downloaded from tomcat.apache.org).
I added the following to context.xml:
<Resources allowLinking="true" />
Which context.xml did you modify?
You should leave all files alone in the Tomcat installation. You should
only be changing files in your application.
Why? Because many of the jsp files are linked to a common source.
This is good information to have. Can you be very specific about that
symlinks you have? Not just where they point, but what their sources
are? Like /foo/bar/baz points to /a/b/c.
I added the following to web.xml:
<security-constraint>
<web-resource-collection>
<web-resource-name>Include files</web-resource-name>
<description>No direct access to include files.</description>
<url-pattern>/include/*</url-pattern>
<http-method>POST</http-method>
<http-method>GET</http-method>
</web-resource-collection>
<!--web-resource-collection>
<web-resource-name>tmp files</web-resource-name>
<description>No direct access to tmp files.</description>
<url-pattern>/tmp/*</url-pattern>
<http-method>POST</http-method>
<http-method>GET</http-method>
</web-resource-collection-->
<auth-constraint>
<description>No direct browser access to include files.</description>
<role-name>NobodyHasThisRole</role-name>
</auth-constraint>
</security-constraint>
I added the following to server.xml:
<Connector protocol="AJP/1.3"
address="127.0.0.1"
port="8009"
redirectPort="8443"
maxParameterCount="1000"
secretRequired="false"
/>
The 'secretRequired' thing was from notes on a previous, successful 10.1.13
deployment.
Just confirming: you are using Apache httpd with mod_jk or mod_proxy_ajp
as a reverse proxy in front of Tomcat?
I removed from server.xml:
xmlValidation="false" xmlNamespaceAware="false"
<Logger className="org.apache.catalina.logger.FileLogger" ... />
This got rid of the catalina.out warning messages on those lines.
I added the following to server.xml. Again, from previous notes:
<Realm className="org.apache.catalina.realm.MemoryRealm" />
I configured only one local hostname in server.xml:
<Host name="www.horeb-wright3.org" appBase="webapps"
unpackWARs="true" autoDeploy="true">
<Alias>horeb-wright3.org</Alias>
<Context path="" docBase="horeb-wright3" reloadable="false">
<WatchedResource>/WEB-INF/web.xml</WatchedResource>
<WatchedResource>/style.css</WatchedResource>
</Context>
Not recommended, but okay. If you have <Context> in conf/server.xml and
also the file is in the webapps/ directory, then you will deploy the
application TWICE. Once on / (becasue you d <Context path="">, and once
on /horeb-wright3 because you have autoDeploy="true" and a directory
called webapps/horeb-wright3). This may be multiplying all of your error
messages by 2 in the log file.
It's not really dangerous, just confusing and wasteful.
If you can get away without putting <Context> in conf/server.xml, then I
would recommend that you remove it. If you want to deploy an application
on / then re-name the diretory horeb-wright3 to be ROOT (case-sensitive).
</Host>
I also installed tomcat-connectors 1.2.50 in /usr/lib64/httpd/modules/mod_jk.so.
Okay I guess you are using mod_jk then :)
I then started tomcat and got numerous errors in catalina.out.
Now, the jsp programs in webapps/horeb-wright3 were all created and running
under
apache 8.5.11. I do know that lots of javax stuff was replaced by jakarta. So,
if
I can get the right jakarta lib references into these jsp programs I might be
out
of the woods.
Tomcat can migrate your application for you, automatically. In the
Tomcat 10.1.x deployment, put your application into webapps-javaee/
instead of webapps/
Tomcat will auto-replace the Java EE imports with Jakarta EE imports
during the deployment.
Then you don't have to modify your original application just to test it
with Tomcat 10.1.
Below seem to me the most important log messages. There are several exceptions
listed, but one that occurs frequently is ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint.
That is conccerning. It suggests to me that your Tomcat installation is
broken. But you just reinstalled everything.
A web search on this error gives:
"If using Tomcat 10+, update your code and dependencies to use
jakarta.websocket.* imports."
However, searching all the "page imports", "include files" in index.jsp I find
nothing with the string "websocket".
There are several javax imports:
page import="javax.naming.Context, javax.naming.NamingException"
page import="javax.sql.DataSource,
javax.imageio.ImageIO"
Those haven't changed. It's only the JavaEE ones that have changed.
Is there a classdef I can import to resolve this exception?
Caused by: org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/horeb-wright3]]
Caused by: java.lang.TypeNotPresentException: Type
jakarta.websocket.server.ServerEndpoint not present
Caused by: java.lang.ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint
Caused by: org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/common]]
Caused by: java.lang.TypeNotPresentException: Type
jakarta.websocket.server.ServerEndpoint not present
Caused by: java.lang.ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint
Caused by: org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[www.horeb-wright3.org].StandardContext[]]
Caused by: java.lang.TypeNotPresentException: Type
jakarta.websocket.server.ServerEndpoint not present
Caused by: java.lang.ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint
Caused by: org.apache.catalina.LifecycleException: A child container failed
during start
Caused by: java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[www.horeb-wright3.org].StandardContext[]]
Caused by: org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[www.horeb-wright3.org].StandardContext[]]
Caused by: java.lang.TypeNotPresentException: Type
jakarta.websocket.server.ServerEndpoint not present
Caused by: java.lang.ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint
Caused by: java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: A child container failed during start
Caused by: org.apache.catalina.LifecycleException: A child container failed
during start
Caused by: java.util.concurrent.ExecutionException:
org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[www.horeb-wright3.org].StandardContext[]]
Caused by: org.apache.catalina.LifecycleException: Failed to start component
[StandardEngine[Catalina].StandardHost[www.horeb-wright3.org].StandardContext[]]
Caused by: java.lang.TypeNotPresentException: Type
jakarta.websocket.server.ServerEndpoint not present
Caused by: java.lang.ClassNotFoundException:
jakarta.websocket.server.ServerEndpoint
Is there any more to that stack trace?
-chris
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