[Tomcat-users] Problems after updating from Tomcat 3.3 to 4.1: http tunneling servlet not working anymore

	Volker
	Jul 26, 2011 at 2:30 pm

Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2
- diablo-jdk1.6.0

In order to provide a http tunneling for a chat server I have been
using*tomcat 3.3*, FreeBSD 5.4, Apache 1.3, mod_jk (ajp12 Connector) and
diablo-jre1.5.0 in combination with a certain http tunneling servlet
*without any problems* for several years.
That http tunneling servlet is passed via a chat applet via "<PARAM
NAME='HttpServlet'
VALUE='http://test.Domain.com/servlet/*HttpTunnelingServletdc*'>
The configuration for that system above _*can be found below*_ *=>
Configuration for tomcat 3.3

*After upgrading to FreeBSD 8.2 I had to upgrade from tomcat 3.3 to 4.1
because I did not find any port for tomcat version 3.3.
I do not manage to make the httpd tunneling applet running correctly
with ajp1.3 but I think it does not depend on the connector but a
misconfigured mapping.

I guess that following warning in mod_jk.log shows up the reason for my
problem when requesting
http://test.Domain.com/servlet/*HttpTunnelingServletdc*'
*[Tue Jul 26 13:00:56.615 2011] [36163:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid. Uri
must start with /*

However the tomcat 4.1 start page is accessible via http://domain:8180
and working correctly!

Below you find the configuration of my current system under FreeBSD
mentioned above with tomcat 4.1.36 and apache 2.2.17 which does not run
correctly _and the configuration for tomcat 3.3 which is running
correctly_.*

*Since I am not familiar with tomcat I would be glad if someone could
give me a hint to solve my problem.
Or maybe someone can give me some hints for how to compile tomcat 3.3
sources for FreeBSD ;-)

Thanks a lot and best regards

Volker
*
============================================================================
NOT WORKING
Configuration for Tomcat 4.1.36 (FreeBSD 8.2, Apache 2.2.17,
mod_jk-ap2-1.2.31, Diablo JDK 1.6)
**============================================================================

The servlet classes result in:
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*/*com/....*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes/digi/...
...
*
httpd.conf
*JkWorkersFile "/usr/local/etc/apache22/workers.properties"
JkLogFile "/usr/local/apache-tomcat4.1/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
*
workers.properties
*workers.java_home=/usr/local/diablo-jdk1.6.0
workers.tomcat_home=/usr/local/apache-tomcat4.1
worker.list=jsp-hostname
worker.jsp-hostname.port=8009
worker.jsp-hostname.host=127.0.0.1
worker.jsp-hostname.type=ajp13
worker.jsp-hostname.lbfactor=1*

**server.xml*
<Service name="Tomcat-Standalone">
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8180" enableLookups="true" redirectPort="8443"
acceptCount="100" connectionTimeout="20000"
useURIValidationHack="false" disableUploadTimeout="true" />

<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8009" enableLookups="true" redirectPort="8443"
connectionTimeout="0"
useURIValidationHack="false"

protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" />

<Engine name="Standalone" defaultHost="localhost" debug="0"
jvmRoute="jsp-hostname">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>


<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true">

<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>



<Context path="/ROOT" docBase="ROOT" debug="0" reloadable="true"
crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="ROOT-http-tunneling_log." suffix=".txt" timestamp="true"/>
</Context>


<Context path="/examples" docBase="examples" debug="1" reloadable="true"
crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_examples_log." suffix=".txt" timestamp="true"/>
<Ejb name="ejb/EmplRecord" type="Entity"
home="com.wombat.empl.EmployeeRecordHome"
remote="com.wombat.empl.EmployeeRecord"/>

*web.xml*
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
*com.diginet.digichat.util.tunnel3.HttpTunnelingServlet*
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpTunnelingServletdc</servlet-name>
<url-pattern>/HttpTunnelingServletdc</url-pattern>
</servlet-mapping>
</web-app>

*catalina.out*
StandardEngine[null]: setJvmRoute=jsp-hostname
Jul 26, 2011 11:25:19 AM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8180
Starting service Tomcat-Standalone
Apache Tomcat/4.1.36
HTTP Tunnel connected to the digichat server localhost
HTTP Tunnel connected to the digichat server localhost
Jul 26, 2011 11:25:20 AM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-8180
Jul 26, 2011 11:25:20 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jul 26, 2011 11:25:20 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/17 config=null

*mod_jk.log*
[Tue Jul 26 11:25:13.007 2011] [35031:34382823872] [info]
init_jk::mod_jk.c (3198): mod_jk/1.2.31 (1026297) initialized
[Tue Jul 26 11:29:37.458 2011] [35103:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid. Uri
must start with /
[Tue Jul 26 11:30:15.672 2011] [35034:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid. Uri
must start with /

*ROOT-http-tunneling_log.2011-07-26.txt*
2011-07-26 11:25:19 WebappLoader[/ROOT]: Deploying class repositories to
work directory /usr/local/apache-tomcat4.1/work/Standalone/localhost/ROOT
2011-07-26 11:25:19 WebappLoader[/ROOT]: Deploy class files
/WEB-INF/classes to /usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes
2011-07-26 11:25:19 WebappLoader[/ROOT]: Reloading checks are enabled
for this Context
2011-07-26 11:25:19 StandardManager[/ROOT]: Seeding random number
generator class java.security.SecureRandom
2011-07-26 11:25:19 StandardManager[/ROOT]: Seeding of random number
generator has been completed
2011-07-26 11:25:19 StandardWrapper[/ROOT:default]: Loading container
servlet default
2011-07-26 11:25:19 StandardWrapper[/ROOT:invoker]: Loading container
servlet invoker

*Requesting http://www.domain.com/servlet/HttpTunnelingServletdc via
Browser results in:*

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
at com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)

*root cause*

java.lang.NullPointerException
at com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)

------------------------------------------------------------------------

Apache Tomcat/4.1.3

===================================================================================
*WORKING
Configuration for tomcat 3.3 (FreeBSD 5.4, Apache 1.3.41, Tomcat 3.3.2,
mod_jk 1.2.15, Diablo JRE 1.5)
**============================================================================*
*
SERVER.XML
* (jakarta-tomcat3.3/conf)
<Ajp12Connector port="8007" />

*web.xml*
(/jakarta-tomcat3.3/webapps/ROOT/WEB-INF)
<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HttpTunnelingServlet</servlet-name>
<url-pattern>/HttpTunnelingServlet</url-pattern>
</servlet-mapping>
</web-app>

*workers.properties*
worker.ajp12.type=ajp12
worker.ajp12.port=8007
worker.ajp12.host=localhost
worker.ajp12.lbfactor=1

*mod_jk.conf*
<IfModule !mod_jk.c>
LoadModule jk_module /usr/local/libexec/apache/mod_jk.so
</IfModule>
JkWorkersFile "/usr/local/jakarta-tomcat3.3/conf/jk/workers.properties"
JkLogFile "/usr/local/jakarta-tomcat3.3/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
JkMount /servlet/* ajp12

Search Discussions

9 responses

Nested Oldest

David kerber

at Jul 26, 2011 at 2:44 pm

⇧

On 7/26/2011 10:29 AM, Volker wrote:
Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2
- diablo-jdk1.6.0

Since you have to upgrade any way, why not upgrade to a current version
of TC, such as 6.0.x, or 7.x? You're not likely to find many people
here who remember (or even ever used) tc 4.x.

D

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Volker

at Jul 26, 2011 at 2:58 pm

⇧

Am 26.07.2011 16:43, schrieb David kerber:

On 7/26/2011 10:29 AM, Volker wrote:
Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2
- diablo-jdk1.6.0

Since you have to upgrade any way, why not upgrade to a current
version of TC, such as 6.0.x, or 7.x? You're not likely to find many
people here who remember (or even ever used) tc 4.x.

D

Hi,

I chose tomcat 4.1 because I thought that the differences in
configuration of tomcat 4.1 compared with 3.3 are less than compared
with 7.x.

If you could have a look on my working config of 3.3 and tell me how to
transfer them in a config for 7.x I even would install 7.x ;-)
I really "only" use it for that littel http tunneling script!

Best regards
Volker

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Volker

at Jul 26, 2011 at 2:47 pm

⇧

I forget to mention that in httpd.conf the connectors are integrated
like following:

<virtualhost domain.com test.domain.com>
....
JkMount /servlet jsp-hostname
JkMount /servlet/* jsp-hostname
</virtualhost>

Best regards
Volker

Am 26.07.2011 16:29, schrieb Volker:

Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2
- diablo-jdk1.6.0

In order to provide a http tunneling for a chat server I have been
using*tomcat 3.3*, FreeBSD 5.4, Apache 1.3, mod_jk (ajp12 Connector)
and diablo-jre1.5.0 in combination with a certain http tunneling
servlet *without any problems* for several years.
That http tunneling servlet is passed via a chat applet via "<PARAM
NAME='HttpServlet'
VALUE='http://test.Domain.com/servlet/*HttpTunnelingServletdc*'>
The configuration for that system above _*can be found below*_ *=>
Configuration for tomcat 3.3

*After upgrading to FreeBSD 8.2 I had to upgrade from tomcat 3.3 to
4.1 because I did not find any port for tomcat version 3.3.
I do not manage to make the httpd tunneling applet running correctly
with ajp1.3 but I think it does not depend on the connector but a
misconfigured mapping.

I guess that following warning in mod_jk.log shows up the reason for
my problem when requesting
http://test.Domain.com/servlet/*HttpTunnelingServletdc*'
*[Tue Jul 26 13:00:56.615 2011] [36163:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid.
Uri must start with /*

However the tomcat 4.1 start page is accessible via http://domain:8180
and working correctly!

Below you find the configuration of my current system under FreeBSD
mentioned above with tomcat 4.1.36 and apache 2.2.17 which does not
run correctly _and the configuration for tomcat 3.3 which is running
correctly_.*

*Since I am not familiar with tomcat I would be glad if someone could
give me a hint to solve my problem.
Or maybe someone can give me some hints for how to compile tomcat 3.3
sources for FreeBSD ;-)

Thanks a lot and best regards

Volker
*
============================================================================

NOT WORKING
Configuration for Tomcat 4.1.36 (FreeBSD 8.2, Apache 2.2.17,
mod_jk-ap2-1.2.31, Diablo JDK 1.6)
**============================================================================

The servlet classes result in:
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*/*com/....*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes/digi/...
...
*
httpd.conf
*JkWorkersFile "/usr/local/etc/apache22/workers.properties"
JkLogFile "/usr/local/apache-tomcat4.1/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
*
workers.properties
*workers.java_home=/usr/local/diablo-jdk1.6.0
workers.tomcat_home=/usr/local/apache-tomcat4.1
worker.list=jsp-hostname
worker.jsp-hostname.port=8009
worker.jsp-hostname.host=127.0.0.1
worker.jsp-hostname.type=ajp13
worker.jsp-hostname.lbfactor=1*

**server.xml*
<Service name="Tomcat-Standalone">
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8180" enableLookups="true" redirectPort="8443"
acceptCount="100" connectionTimeout="20000"
useURIValidationHack="false"
disableUploadTimeout="true" />

<Connector className="org.apache.coyote.tomcat4.CoyoteConnector"
port="8009" enableLookups="true" redirectPort="8443"
connectionTimeout="0"
useURIValidationHack="false"

protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler" />

<Engine name="Standalone" defaultHost="localhost" debug="0"
jvmRoute="jsp-hostname">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="catalina_log." suffix=".txt"
timestamp="true"/>


<Host name="localhost" debug="0" appBase="webapps"
unpackWARs="true" autoDeploy="true">

<Logger className="org.apache.catalina.logger.FileLogger"
directory="logs" prefix="localhost_log." suffix=".txt"
timestamp="true"/>



<Context path="/ROOT" docBase="ROOT" debug="0" reloadable="true"
crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="ROOT-http-tunneling_log." suffix=".txt" timestamp="true"/>
</Context>


<Context path="/examples" docBase="examples" debug="1"
reloadable="true" crossContext="true">
<Logger className="org.apache.catalina.logger.FileLogger"
prefix="localhost_examples_log." suffix=".txt" timestamp="true"/>
<Ejb name="ejb/EmplRecord" type="Entity"
home="com.wombat.empl.EmployeeRecordHome"
remote="com.wombat.empl.EmployeeRecord"/>

*web.xml*
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">
<web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
*com.diginet.digichat.util.tunnel3.HttpTunnelingServlet*
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpTunnelingServletdc</servlet-name>
<url-pattern>/HttpTunnelingServletdc</url-pattern>
</servlet-mapping>
</web-app>

*catalina.out*
StandardEngine[null]: setJvmRoute=jsp-hostname
Jul 26, 2011 11:25:19 AM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-8180
Starting service Tomcat-Standalone
Apache Tomcat/4.1.36
HTTP Tunnel connected to the digichat server localhost
HTTP Tunnel connected to the digichat server localhost
Jul 26, 2011 11:25:20 AM org.apache.coyote.http11.Http11BaseProtocol
start
INFO: Starting Coyote HTTP/1.1 on http-8180
Jul 26, 2011 11:25:20 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8009
Jul 26, 2011 11:25:20 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/17 config=null

*mod_jk.log*
[Tue Jul 26 11:25:13.007 2011] [35031:34382823872] [info]
init_jk::mod_jk.c (3198): mod_jk/1.2.31 (1026297) initialized
[Tue Jul 26 11:29:37.458 2011] [35103:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid.
Uri must start with /
[Tue Jul 26 11:30:15.672 2011] [35034:34382823872] [warn]
map_uri_to_worker_ext::jk_uri_worker_map.c (962): Uri * is invalid.
Uri must start with /

*ROOT-http-tunneling_log.2011-07-26.txt*
2011-07-26 11:25:19 WebappLoader[/ROOT]: Deploying class repositories
to work directory
/usr/local/apache-tomcat4.1/work/Standalone/localhost/ROOT
2011-07-26 11:25:19 WebappLoader[/ROOT]: Deploy class files
/WEB-INF/classes to
/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes
2011-07-26 11:25:19 WebappLoader[/ROOT]: Reloading checks are enabled
for this Context
2011-07-26 11:25:19 StandardManager[/ROOT]: Seeding random number
generator class java.security.SecureRandom
2011-07-26 11:25:19 StandardManager[/ROOT]: Seeding of random number
generator has been completed
2011-07-26 11:25:19 StandardWrapper[/ROOT:default]: Loading container
servlet default
2011-07-26 11:25:19 StandardWrapper[/ROOT:invoker]: Loading container
servlet invoker

*Requesting http://www.domain.com/servlet/HttpTunnelingServletdc via
Browser results in:*

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
at
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)

*root cause*

java.lang.NullPointerException
at
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:139)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2460)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:133)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.java:119)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:594)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:127)
at
org.apache.catalina.core.StandardPipeline$StandardPipelineValveContext.invokeNext(StandardPipeline.java:596)
at
org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:433)
at
org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:955)
at
org.apache.coyote.tomcat4.CoyoteAdapter.service(CoyoteAdapter.java:157)
at
org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200)
at
org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283)
at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703)
at
org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)

------------------------------------------------------------------------

Apache Tomcat/4.1.3

===================================================================================

*WORKING
Configuration for tomcat 3.3 (FreeBSD 5.4, Apache 1.3.41, Tomcat
3.3.2, mod_jk 1.2.15, Diablo JRE 1.5)
**============================================================================*

*
SERVER.XML
* (jakarta-tomcat3.3/conf)
<Ajp12Connector port="8007" />

*web.xml*
(/jakarta-tomcat3.3/webapps/ROOT/WEB-INF)
<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HttpTunnelingServlet</servlet-name>
<url-pattern>/HttpTunnelingServlet</url-pattern>
</servlet-mapping>
</web-app>

*workers.properties*
worker.ajp12.type=ajp12
worker.ajp12.port=8007
worker.ajp12.host=localhost
worker.ajp12.lbfactor=1

*mod_jk.conf*
<IfModule !mod_jk.c>
LoadModule jk_module /usr/local/libexec/apache/mod_jk.so
</IfModule>
JkWorkersFile "/usr/local/jakarta-tomcat3.3/conf/jk/workers.properties"
JkLogFile "/usr/local/jakarta-tomcat3.3/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
JkMount /servlet/* ajp12

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reply | permalink

Felix Schumacher

at Jul 26, 2011 at 5:54 pm

⇧

Hi Volker,

Am Dienstag, den 26.07.2011, 16:29 +0200 schrieb Volker:

Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2

As you said elsewhere in this thread, that you are willing to upgrade to
a newer tomcat as well, I will assume, that you will use tomcat 6 or
even tomcat 7.

- diablo-jdk1.6.0

In order to provide a http tunneling for a chat server I have been
using*tomcat 3.3*, FreeBSD 5.4, Apache 1.3, mod_jk (ajp12 Connector) and
diablo-jre1.5.0 in combination with a certain http tunneling servlet
*without any problems* for several years.
That http tunneling servlet is passed via a chat applet via "<PARAM
NAME='HttpServlet'
VALUE='http://test.Domain.com/servlet/*HttpTunnelingServletdc*'>
The configuration for that system above _*can be found below*_ *=>
Configuration for tomcat 3.3

That looks like you are using the strongly discouraged dispatcher
servlet. That is still available, but disabled by default. And you
should leave it that way.
>
...

Thanks a lot and best regards

Volker
*
============================================================================
NOT WORKING
Configuration for Tomcat 4.1.36 (FreeBSD 8.2, Apache 2.2.17,
mod_jk-ap2-1.2.31, Diablo JDK 1.6)
**============================================================================

The servlet classes result in:
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes*/*com/....*
*/usr/local/apache-tomcat4.1/webapps/ROOT/WEB-INF/classes/digi/...

I read that as: There are some files and directories under
WEB-INF/classes in your ROOT webapp and that /usr/local/apache-tomcat4.1
is your CATALINA_BASE and probably CATALINA_HOME too.

...
*
httpd.conf
*JkWorkersFile "/usr/local/etc/apache22/workers.properties"
JkLogFile "/usr/local/apache-tomcat4.1/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info Looks OK.
*
workers.properties
*workers.java_home=/usr/local/diablo-jdk1.6.0
workers.tomcat_home=/usr/local/apache-tomcat4.1

Remove both deprecated config options java_home and tomcat_home. They
are not needed anymore.

worker.list=jsp-hostname
worker.jsp-hostname.port=8009
worker.jsp-hostname.host=127.0.0.1
worker.jsp-hostname.type=ajp13
worker.jsp-hostname.lbfactor=1*

**server.xml*

Copy the server.xml from a fresh tomcat download and replace your
port-numbers in there.

Your context descriptions for ROOT and example would be placed in newly
created files named ROOT.xml and example.xml under
$CATALINA_BASE/conf/Catalina/localhost. But I seriously doubt, that you
need example.xml and ROOT.xml is not needed, if all you want to achieve
is logging. Look at http://tomcat.apache.org/tomcat-7.0-doc/logging.html
for more info about simple logging.

*web.xml*
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

You could update your webapp to a newer version by replacing the above
values, but they should do no harm.

<web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
*com.diginet.digichat.util.tunnel3.HttpTunnelingServlet*
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>invoker</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>HttpTunnelingServletdc</servlet-name>
<url-pattern>/HttpTunnelingServletdc</url-pattern>
</servlet-mapping>

Instead of mapping a not configured servlet named invoker to /servlet/*
you should map your servlet named HttpTunnelingServletdc
to /servlet/HttpTunnelingServletdc or alternatively change your applet
configuration from top of your post.

So remove
<servlet-mapping><servlet-name>invoker</servlet-name>...</servlet-mapping>
and change url-pattern in the <servlet-mapping>
from /HttpTunnelingServletdc to /servlet/HttpTunnelingServletdc

</web-app> ...
*description* _The server encountered an internal error () that
prevented it from fulfilling this request._

*exception*

javax.servlet.ServletException
at com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])
at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810) ...
at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:619)

*root cause*

java.lang.NullPointerException
at com.diginet.digichat.util.tunnel3.HttpTunnelingServlet.doGet([DashoPro-V1.3BETA-091199])

Hopefully you have the source code for HttpTunnelingServlet since this
line means, your servlet gets invoked, but it is not happy to work :)
That might come from the fact, that you configured the servlet
HttpTunnelingServletdc, but used the invoker-servlet. Chances are, that
the proposed configuration chages in web.xml fix this.

HTH
Felix

at javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:199)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:145) ...
------------------------------------------------------------------------

Apache Tomcat/4.1.3

===================================================================================
*WORKING
Configuration for tomcat 3.3 (FreeBSD 5.4, Apache 1.3.41, Tomcat 3.3.2,
mod_jk 1.2.15, Diablo JRE 1.5)
**============================================================================*
*
SERVER.XML
* (jakarta-tomcat3.3/conf)
<Ajp12Connector port="8007" />

*web.xml*
(/jakarta-tomcat3.3/webapps/ROOT/WEB-INF)
<?xml version="1.0" encoding="ISO-8859-1"?>

<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd"><web-app>
<servlet>
<servlet-name>
HttpTunnelingServletdc
</servlet-name>
<servlet-class>
com.diginet.digichat.util.tunnel3.HttpTunnelingServlet
</servlet-class>
<init-param>
<param-name>Host</param-name>
<param-value>localhost</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>HttpTunnelingServlet</servlet-name>
<url-pattern>/HttpTunnelingServlet</url-pattern>
</servlet-mapping>
</web-app>

*workers.properties*
worker.ajp12.type=ajp12
worker.ajp12.port=8007
worker.ajp12.host=localhost
worker.ajp12.lbfactor=1

*mod_jk.conf*
<IfModule !mod_jk.c>
LoadModule jk_module /usr/local/libexec/apache/mod_jk.so
</IfModule>
JkWorkersFile "/usr/local/jakarta-tomcat3.3/conf/jk/workers.properties"
JkLogFile "/usr/local/jakarta-tomcat3.3/logs/mod_jk.log"
JkShmFile /var/log/jk-runtime-status
JkLogLevel info
JkMount /servlet/* ajp12

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reply | permalink

Volker

at Jul 26, 2011 at 11:20 pm

⇧

Hallo Felix,

thanks for your hints, I will check them out today.

Believe it or not: Obviously the configuration for tomcat 4.1 I posted
here is running correctly.
But I did not notice it - and this will be the problem for all my chat
site visitors that need http tunneling - because it takes nearly 2
minutes with tomcat 4.1 until the chat applets request of

http://test.Domain.com/servlet/*HttpTunnelingServletdc

does show up in apache?s log file whereas tomcat 3.3 is requesting the
tunneling servlet at once.

Result:
Chatters behind a firewall that blocks several ports except port 80 can
enter the chat in a few seconds by help of the tunneling servlet and
tomcat 3.3.
With tomcat 4.1 they will think the chat does not work and leave the site.

I only noticed that slow behaviour because I had a phone call after
requesting the chat applet behind a firewall only permitting port 80.

Maybe you can recommend any tuning settings for my problem concerning
tomcat 4.1?

Thanks a lot and best regards
V o l k e r

Am 26.07.2011 19:54, schrieb Felix Schumacher:

Hi Volker,

Am Dienstag, den 26.07.2011, 16:29 +0200 schrieb Volker:

Hello,

my current system configuration is like following:

- FreeBSD 8.2
- apache-2.2.17_2
- mod_jk-ap2-1.2.31_1 Apache2 JK
- tomcat 4.1.36_2

As you said elsewhere in this thread, that you are willing to upgrade to
a newer tomcat as well, I will assume, that you will use tomcat 6 or
even tomcat 7.

That looks like you are using the strongly discouraged dispatcher
servlet. That is still available, but disabled by default. And you
should leave it that way.
...

I read that as: There are some files and directories under
WEB-INF/classes in your ROOT webapp and that /usr/local/apache-tomcat4.1
is your CATALINA_BASE and probably CATALINA_HOME too.

Remove both deprecated config options java_home and tomcat_home. They
are not needed anymore.

worker.list=jsp-hostname
worker.jsp-hostname.port=8009
worker.jsp-hostname.host=127.0.0.1
worker.jsp-hostname.type=ajp13
worker.jsp-hostname.lbfactor=1*

**server.xml*

Copy the server.xml from a fresh tomcat download and replace your
port-numbers in there.

*web.xml*
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE web-app
PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd">

You could update your webapp to a newer version by replacing the above
values, but they should do no harm.

Instead of mapping a not configured servlet named invoker to /servlet/*
you should map your servlet named HttpTunnelingServletdc
to /servlet/HttpTunnelingServletdc or alternatively change your applet
configuration from top of your post.

So remove
<servlet-mapping><servlet-name>invoker</servlet-name>...</servlet-mapping>
and change url-pattern in the<servlet-mapping>
from /HttpTunnelingServletdc to /servlet/HttpTunnelingServletdc

---------------------------------------------------------------------
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Volker

at Jul 27, 2011 at 11:09 am

⇧

Hallo Felix,

I considered all tips you gave. Thanks again.

Like mentioned before my configuration was running correctly but I could
not notice that because the http tunneling does need much more time
(first request of the httptunnelingdc-Servlet (I check this out in
Apache?s log-file) than my former configuration with tomcat.

Now I wonder how I can tune something (Simultaneously I will install
tomcat 7.x) because I do not know if the slow-performance-problem
depends on tomcat settings or maybe on the Diablo-Java-Settings?

The combination with tomcat 3.3, apj12, mod_jk, Diablo JRE 1.5 and
apache 1.3 results in opening the chat window via http tunneling in *a
few seconds* if you blocked all ports except port 80 before for Java
(Browser).
With tomcat 4.1 the same procedure needs nearly 3 minutes.

Any idea?

Thanks and best regards

V o l k e r

Am 26.07.2011 19:54, schrieb Felix Schumacher: