date:20090718

When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I get the
message from the Tomcat Setup as Failed to install tomcat6 service check
your settings and permissions.I have the permissions.The only thing I think
that is different from the setup needs is the JRE version.But the tomcat-
preconfigured-6.0.18.zip downloaded from coreservlets.com
http://coreservlets.com%20works fine with the J2SE 6 JRE.

Your ideas please!!

-- 
Kind Regards Varuna

Varuna Seneviratna
No 514 Udumulla Road
Battaramulla
Sri Lanka
Tel : 011-2888620
Mobile:0715617141

Re: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE

2009-07-18 Thread Mark Thomas

Varuna Seneviratna wrote:
 When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I get the
 message from the Tomcat Setup as Failed to install tomcat6 service check
 your settings and permissions.I have the permissions.The only thing I think
 that is different from the setup needs is the JRE version.But the tomcat-
 preconfigured-6.0.18.zip downloaded from coreservlets.com
 http://coreservlets.com%20works fine with the J2SE 6 JRE.
 
 Your ideas please!!

Start the service manually, tell us what error(s) you get.

Mark


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Re: [OT] Apache httpd prefork versus worker MPM

2009-07-18 Thread André Warnier


Christopher Schultz wrote:
...
Hi Chris.
My 0.02 €.

I have been using both the prefork and worker versions of Apache 2.2, 
along with mod_jk.

As far as I can tell, there is no problem in that respect with mod_jk.
However, the threaded (worker) version may give you problems if, 
somewhere maybe deep down, there is a piece of software running under 
Apache, that is not thread-safe.

It very much depends thus on what you really use at the Apache side.
I have only had a couple of problems in the past because I am also 
running mod_perl under Apache, and some older perl modules sometimes 
make use of some older C libraries which are (or were) not thread-safe.

I have not had any trouble with any of the standard Apache modules.
I seem to remember that there might be (or might have been) some issues 
when using SSL.  But I'm not quite sure how long ago that was, and if it 
is still an issue currently under Debian Lenny.





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Tomcat And JMX

2009-07-18 Thread ajitlodhi


Please someone tell me about how tomcat uses JMX.I know about jmxproxy,if
someone please tell me how can one get information about a particular war
file like how much time its taking to open a particular class so that i can
know which class file is taking larger time on LOAD condition.
-- 
View this message in context: 
http://www.nabble.com/Tomcat-And-JMX-tp24546901p24546901.html
Sent from the Tomcat - User mailing list archive at Nabble.com.


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Re: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE

Manually you can get it running But it is not possible to install using the
setup apache-tomcat-6.0.20.exe.

Varuna

2009/7/18 Mark Thomas ma...@apache.org

 Varuna Seneviratna wrote:
  When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I get the
  message from the Tomcat Setup as Failed to install tomcat6 service check
  your settings and permissions.I have the permissions.The only thing I
 think
  that is different from the setup needs is the JRE version.But the tomcat-
  preconfigured-6.0.18.zip downloaded from coreservlets.com
  http://coreservlets.com%20works fine with the J2SE 6 JRE.
 
  Your ideas please!!

 Start the service manually, tell us what error(s) you get.

 Mark


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-- 
Kind Regards Varuna

Varuna Seneviratna
No 514 Udumulla Road
Battaramulla
Sri Lanka
Tel : 011-2888620
Mobile:0715617141

Re: net stop tomcat6 service hangs on Windows 2008 (64-bit)

2009/7/17 Caldarale, Charles R chuck.caldar...@unisys.com:
 From: Matt Sullivan [mailto:mjdsulli...@hotmail.com]
 Subject: RE: net stop tomcat6 service hangs on Windows 2008 (64-bit)

 Never heard back from anyone, and I'm left assuming this is a bug,
 albeit a difficult one to isolate.

 Refresh our memories - does the hang still occur if you use the shutdown.bat 
 script rather than net stop?

Just to share a bit of my experience:
I have seen Tomcat hanging (and unable to respond to shutdown.sh)
after an out-of-memory (PermGen). It was on Solaris.

I have not dug into it yet (as it is not so important for us), but I
can say that there are some places where an OOM is caught and ignored
or wrapped. The one that showed in our logs was Spring Framework's
DispatcherServlet,  but Tomcat itself does the same: merely throwing
an OOM Error results in the usual HTTP Status 500 error page being
shown.

If you face such a situation, then simply killing tomcat6.exe process
if net stop fails would be the only recipe that I know should be
working.

If your case is different, e.g. you failed to stop a Tomcat instance
that was not hung, then maybe some other cause and a suitable
solution/bugfix can be found. E.g. if it is the case of Application
threads that are not terminating, that Charles mentioned in his first
reply. And in my case of OOM, some tuning can lessen the probability
of it.

 I guess we'll stick with the less elegant workaround, simply killing
 tomcat6.exe process if net stop fails, unless anyone can think of something
 else to try.

I have only the thought of obtaining some diagnostics before killing
it, like getting the Java stack (using jstack tool from JDK, or from
the menu shown by  tomcat6w tray icon), or waiting until log4j flushes
the logs.

Best regards,
Konstantin Kolinko

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Tomcat 6 database pooling causes HttpServlet class not found exception

Hello,
I am trying to configure DB pooling in Tomcat 6.  The combination of the
elements below causes the exception:
java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet

I have followed the directions on
http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
thoroughly so I am confused.  The only thing I am doing a little different
is I have placed my db resource in the conf/context.xml , but I have also
seen the same issue when placed in my META-INF/context.xml

Any ideas will be greatly appreciated!

I think it's the entry in context.xml that causes the issue.

** conf/context.xml:

Resource
 name=jdbc/tabscorp_tabsdb
 auth=Container
 type=javax.sql.DataSource
 maxActive=100 maxIdle=30 maxWait=1
 username=login password=pass
 driverClassName=com.mysql.jdbc.Driver
 logAbandoned=true removeAbandoned=true
 removeAbandonedTimeout=60
 url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/

** webapp/tabs/WEB-INF/web.xml:

resource-ref
  descriptionTABS DB Connection/description
  res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
  res-typejavax.sql.DataSource/res-type
  res-authContainer/res-auth
/resource-ref



** Java code:
//use the pool
InitialContext cxt = new InitialContext();
if ( cxt == null ) {
 throw new Exception(InitialContext is NULL);
}

DataSource ds = (DataSource) cxt.lookup(
java:/comp/env/jdbc/tabscorp_tabsdb );
if ( ds == null ) {
 throw new Exception(Data source not found);
}

Connection conn = ds.getConnection();
stmt = connection.createStatement();


** Full Exception:

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: Error allocating a servlet instance

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)

root cause

java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)

root cause

java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)

Re: Tomcat 6 database pooling causes HttpServlet class not found exception

2009-07-18 Thread David Smith

I really doubt the database pooling is causing the issue.  More likely
your deployment is doing something to remove the servlet-api.jar or
duplicating it somewhere.  What do you have in tomcat's lib directory
and in your webapp's WEB-INF/lib directory?

--David

Lucas Vickers wrote:
 Hello,
 I am trying to configure DB pooling in Tomcat 6.  The combination of the
 elements below causes the exception:
 java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet

 I have followed the directions on
 http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
 thoroughly so I am confused.  The only thing I am doing a little different
 is I have placed my db resource in the conf/context.xml , but I have also
 seen the same issue when placed in my META-INF/context.xml

 Any ideas will be greatly appreciated!

 I think it's the entry in context.xml that causes the issue.

 ** conf/context.xml:

 Resource
  name=jdbc/tabscorp_tabsdb
  auth=Container
  type=javax.sql.DataSource
  maxActive=100 maxIdle=30 maxWait=1
  username=login password=pass
  driverClassName=com.mysql.jdbc.Driver
  logAbandoned=true removeAbandoned=true
  removeAbandonedTimeout=60
  url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/

 ** webapp/tabs/WEB-INF/web.xml:

 resource-ref
   descriptionTABS DB Connection/description
   res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
   res-typejavax.sql.DataSource/res-type
   res-authContainer/res-auth
 /resource-ref



 ** Java code:
 //use the pool
 InitialContext cxt = new InitialContext();
 if ( cxt == null ) {
  throw new Exception(InitialContext is NULL);
 }

 DataSource ds = (DataSource) cxt.lookup(
 java:/comp/env/jdbc/tabscorp_tabsdb );
 if ( ds == null ) {
  throw new Exception(Data source not found);
 }

 Connection conn = ds.getConnection();
 stmt = connection.createStatement();


 ** Full Exception:

 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: Error allocating a servlet instance

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
 java.lang.Thread.run(Thread.java:619)

 root cause

 java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
 java.lang.ClassLoader.defineClass1(Native Method)
 java.lang.ClassLoader.defineClass(ClassLoader.java:621)
 java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
 java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
 java.net.URLClassLoader.access$000(URLClassLoader.java:56)
 java.net.URLClassLoader$1.run(URLClassLoader.java:195)
 java.security.AccessController.doPrivileged(Native Method)
 java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 java.lang.ClassLoader.loadClass(ClassLoader.java:252)

 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
 java.lang.Thread.run(Thread.java:619)

 root cause

 java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
 java.net.URLClassLoader$1.run(URLClassLoader.java:200)
 java.security.AccessController.doPrivileged(Native Method)
 java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
 java.lang.ClassLoader.defineClass1(Native Method)
 java.lang.ClassLoader.defineClass(ClassLoader.java:621)

Re: Tomcat admin webapp audit


 there is a way to trace into a log file all the connections (and also every
 connection attempt) made into the admin tomcat webapp ? What I need to
 know is:

 login timestamp
 user
 src ip


It is called AccessLogValve,
http://tomcat.apache.org/tomcat-6.0-doc/config/valve.html

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Re: Tomcat 6 database pooling causes HttpServlet class not found exception

2009-07-18 Thread David Smith

Oh... and I see it looks like you have the JVM's security manager turned
on.  Have you made any adjustments to conf/catalina.policy?  What's in
your logs when your webapp is started?

--David

David Smith wrote:
 I really doubt the database pooling is causing the issue.  More likely
 your deployment is doing something to remove the servlet-api.jar or
 duplicating it somewhere.  What do you have in tomcat's lib directory
 and in your webapp's WEB-INF/lib directory?

 --David

 Lucas Vickers wrote:
   
 Hello,
 I am trying to configure DB pooling in Tomcat 6.  The combination of the
 elements below causes the exception:
 java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet

 I have followed the directions on
 http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
 thoroughly so I am confused.  The only thing I am doing a little different
 is I have placed my db resource in the conf/context.xml , but I have also
 seen the same issue when placed in my META-INF/context.xml

 Any ideas will be greatly appreciated!

 I think it's the entry in context.xml that causes the issue.

 ** conf/context.xml:

 Resource
  name=jdbc/tabscorp_tabsdb
  auth=Container
  type=javax.sql.DataSource
  maxActive=100 maxIdle=30 maxWait=1
  username=login password=pass
  driverClassName=com.mysql.jdbc.Driver
  logAbandoned=true removeAbandoned=true
  removeAbandonedTimeout=60
  url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/

 ** webapp/tabs/WEB-INF/web.xml:

 resource-ref
   descriptionTABS DB Connection/description
   res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
   res-typejavax.sql.DataSource/res-type
   res-authContainer/res-auth
 /resource-ref



 ** Java code:
 //use the pool
 InitialContext cxt = new InitialContext();
 if ( cxt == null ) {
  throw new Exception(InitialContext is NULL);
 }

 DataSource ds = (DataSource) cxt.lookup(
 java:/comp/env/jdbc/tabscorp_tabsdb );
 if ( ds == null ) {
  throw new Exception(Data source not found);
 }

 Connection conn = ds.getConnection();
 stmt = connection.createStatement();


 ** Full Exception:

 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: Error allocating a servlet instance

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
 java.lang.Thread.run(Thread.java:619)

 root cause

 java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
 java.lang.ClassLoader.defineClass1(Native Method)
 java.lang.ClassLoader.defineClass(ClassLoader.java:621)
 java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
 java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
 java.net.URLClassLoader.access$000(URLClassLoader.java:56)
 java.net.URLClassLoader$1.run(URLClassLoader.java:195)
 java.security.AccessController.doPrivileged(Native Method)
 java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 java.lang.ClassLoader.loadClass(ClassLoader.java:252)

 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
 java.lang.Thread.run(Thread.java:619)

 root cause

 java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
 java.net.URLClassLoader$1.run(URLClassLoader.java:200)
 java.security.AccessController.doPrivileged(Native Method)
 java.net.URLClassLoader.findClass(URLClassLoader.java:188)
 java.lang.ClassLoader.loadClass(ClassLoader.java:307)
 sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
 java.lang.ClassLoader.loadClass(ClassLoader.java:252)

Re: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE

Is you Windows  32-bit, or 64-bit one?


2009/7/18 Varuna Seneviratna varunasenevira...@gmail.com:
 Manually you can get it running But it is not possible to install using the
 setup apache-tomcat-6.0.20.exe.

 Varuna

 2009/7/18 Mark Thomas ma...@apache.org

 Varuna Seneviratna wrote:
  When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I get the
  message from the Tomcat Setup as Failed to install tomcat6 service check
  your settings and permissions.I have the permissions.The only thing I
 think
  that is different from the setup needs is the JRE version.But the tomcat-
  preconfigured-6.0.18.zip downloaded from coreservlets.com
  http://coreservlets.com%20works fine with the J2SE 6 JRE.
 
  Your ideas please!!

 Start the service manually, tell us what error(s) you get.

 Mark


 -
 To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
 For additional commands, e-mail: users-h...@tomcat.apache.org




 --
 Kind Regards Varuna

 Varuna Seneviratna
 No 514 Udumulla Road
 Battaramulla
 Sri Lanka
 Tel : 011-2888620
 Mobile:0715617141


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RE: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE

 From: Varuna Seneviratna [mailto:varunasenevira...@gmail.com]
 Subject: Re: Is it not possible to install apache-tomcat-6.0.20 with a
 J2SE 5 JRE

 When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I
 get the message from the Tomcat Setup as Failed to install 
 tomcat6 service check your settings and permissions.

Are you sure you're running under an administrator account?

Is there a Tomcat service already installed, perhaps from an older version?  It 
must be removed first.

 - Chuck

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
this in error, please contact the sender and delete the e-mail and its 
attachments from all computers.

Re: tomcat 6 database pooling, DataSource returning NULL connection

See
http://tomcat.apache.org/tomcat-6.0-doc/deployer-howto.html#A%20word%20on%20Contexts

Tomcat makes a copy of your META-INF/context.xml when the application
is deployed, and will not see changes to that file unless you fully
undeploy and redeploy your application.


2009/7/19 Lucas Vickers lucasvick...@gmail.com:
 woops, email was sent prematurely

 anyway, the full email:

 META-INF/context.xml :

  Resource
     name=jdbc/tabscorp_tabsdb
     auth=Container
     type=javax.sql.DataSource
         maxActive=100 maxIdle=30 maxWait=1
         username=mylogin password=mypass
     driverClassName=com.mysql.jdbc.Driver
     logAbandoned=true removeAbandoned=true
     removeAbandonedTimeout=60
         url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/

 WEB-INF/web.xml :

    resource-ref
      descriptionTABS DB Connection/description
      res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
      res-typejavax.sql.DataSource/res-type
      res-authContainer/res-auth
    /resource-ref


 Java Code:

                    InitialContext cxt = new InitialContext();
                    if ( cxt == null ) {
                        throw new Exception(InitialContext is NULL);
                    }

                    DataSource ds = (DataSource) cxt.lookup(
 java:/comp/env/jdbc/tabscorp_tabsdb );
                    if ( ds == null ) {
                        throw new Exception(Data source not found);
                    }

                    Connection conn = ds.getConnection();
                    if ( conn == null) {
                        throw new Exception(Connection is null);
                    }

                    stmt = connection.createStatement();


 I am getting a conn == null , but no other information, so I am having
 trouble debugging.
 suggestions?

 thanks


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RE: Tomcat 6 database pooling causes HttpServlet class not found exception

 From: David Smith [mailto:d...@cornell.edu]
 Subject: Re: Tomcat 6 database pooling causes HttpServlet class not
 found exception

 and I see it looks like you have the JVM's security manager
 turned on.

What makes you think so?  The doPrivileged() calls and SecureClassLoader usage 
occur with or without a security manager; what happens inside those places is 
what's different.

 - Chuck

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
this in error, please contact the sender and delete the e-mail and its 
attachments from all computers.

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Re: tomcat install/testing help.

2009-07-18 Thread Mark Eggers


Tom,

I tried responding to you off-line, but alaska.gov does not seem to like your 
mail address.

Basically, it sounds like you have a permissions problem with the account under 
which Tomcat runs.  By default, the Tomcat service runs as the Local System 
account, so that account needs appropriate access to %CATALINA_HOME% (where 
Tomcat is installed), and its subdirectories.

I hope that helps.

/mde/

--- On Fri, 7/17/09, Burton, Tom (DOR sponsored) tom.bur...@alaska.gov wrote:

 From: Burton, Tom (DOR sponsored) tom.bur...@alaska.gov
 Subject: tomcat install/testing help.
 To: users@tomcat.apache.org
 Date: Friday, July 17, 2009, 5:51 PM
 I've been trying to get tomcat and
 netbeans to work properly on my new
 computer.  I'm running a windows XP computer.
 
 I have been able to get tomcat and netbeans to install
 successfully.
 However I've been unable to get them to work together
 
 correctly.  I've tried installing from the executable
 and running the
 standalone version.  I've removed the standalone and 
 
 uninstalled/reinstalled the version with the installer.
 I've tried
 installing some software that works on our production
 servers just fine.
 
 It currently gives me ServletException when I try to load
 the /
 directory in my browser. I have another strange issue as
 well. The
 servlet
 code examples that come with tomcat work just fine but
 bundled jsp code
 examples do not they all seem to throw an
 AbstractMethodError
 exception.
 
  
 
 Any help and or suggestions would be much appreciated. I'd
 be happy to
 provide some of the trace roots if you think it will help
 in diagnosing 
 what I did wrong in seting everything up.
 
  
 
 Thanks in advance,
 
 Tom Burton
 
  
 
 




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Re: Tomcat 6 database pooling causes HttpServlet class not found exception

Odd,
I did not explicitly enable the security manager, but this makes sense.  I
try logging directly from my servlet (by doing a stack trace into a log
file), which seems to be causing this issue.

thanks!



On Sat, Jul 18, 2009 at 6:13 PM, David Smith d...@cornell.edu wrote:

 Oh... and I see it looks like you have the JVM's security manager turned
 on.  Have you made any adjustments to conf/catalina.policy?  What's in
 your logs when your webapp is started?

 --David

 David Smith wrote:
  I really doubt the database pooling is causing the issue.  More likely
  your deployment is doing something to remove the servlet-api.jar or
  duplicating it somewhere.  What do you have in tomcat's lib directory
  and in your webapp's WEB-INF/lib directory?
 
  --David
 
  Lucas Vickers wrote:
 
  Hello,
  I am trying to configure DB pooling in Tomcat 6.  The combination of the
  elements below causes the exception:
  java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
 
  I have followed the directions on
 
 http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html
  thoroughly so I am confused.  The only thing I am doing a little
 different
  is I have placed my db resource in the conf/context.xml , but I have
 also
  seen the same issue when placed in my META-INF/context.xml
 
  Any ideas will be greatly appreciated!
 
  I think it's the entry in context.xml that causes the issue.
 
  ** conf/context.xml:
 
  Resource
   name=jdbc/tabscorp_tabsdb
   auth=Container
   type=javax.sql.DataSource
   maxActive=100 maxIdle=30 maxWait=1
   username=login password=pass
   driverClassName=com.mysql.jdbc.Driver
   logAbandoned=true removeAbandoned=true
   removeAbandonedTimeout=60
   url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/
 
  ** webapp/tabs/WEB-INF/web.xml:
 
  resource-ref
descriptionTABS DB Connection/description
res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
res-typejavax.sql.DataSource/res-type
res-authContainer/res-auth
  /resource-ref
 
 
 
  ** Java code:
  //use the pool
  InitialContext cxt = new InitialContext();
  if ( cxt == null ) {
   throw new Exception(InitialContext is NULL);
  }
 
  DataSource ds = (DataSource) cxt.lookup(
  java:/comp/env/jdbc/tabscorp_tabsdb );
  if ( ds == null ) {
   throw new Exception(Data source not found);
  }
 
  Connection conn = ds.getConnection();
  stmt = connection.createStatement();
 
 
  ** Full Exception:
 
  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: Error allocating a servlet instance
 
 
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 
 
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
 
 
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
 
 
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
  java.lang.Thread.run(Thread.java:619)
 
  root cause
 
  java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
  java.lang.ClassLoader.defineClass1(Native Method)
  java.lang.ClassLoader.defineClass(ClassLoader.java:621)
 
 java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
  java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
  java.net.URLClassLoader.access$000(URLClassLoader.java:56)
  java.net.URLClassLoader$1.run(URLClassLoader.java:195)
  java.security.AccessController.doPrivileged(Native Method)
  java.net.URLClassLoader.findClass(URLClassLoader.java:188)
  java.lang.ClassLoader.loadClass(ClassLoader.java:307)
  sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
  java.lang.ClassLoader.loadClass(ClassLoader.java:252)
 
 
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
 
 
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
 
 
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
 
 
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
 
 
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
 
 
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
 
 org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
  java.lang.Thread.run(Thread.java:619)
 
  root cause
 
  java.lang.ClassNotFoundException:

Re: tomcat 6 database pooling, DataSource returning NULL connection

I am doing a static install and restarting my tomcat each time I make a file
change,
so I do not think this is the issue.

thanks tho

On Sat, Jul 18, 2009 at 8:41 PM, Konstantin Kolinko
knst.koli...@gmail.comwrote:

 See

 http://tomcat.apache.org/tomcat-6.0-doc/deployer-howto.html#A%20word%20on%20Contexts

 Tomcat makes a copy of your META-INF/context.xml when the application
 is deployed, and will not see changes to that file unless you fully
 undeploy and redeploy your application.


 2009/7/19 Lucas Vickers lucasvick...@gmail.com:
  woops, email was sent prematurely
 
  anyway, the full email:
 
  META-INF/context.xml :
 
   Resource
  name=jdbc/tabscorp_tabsdb
  auth=Container
  type=javax.sql.DataSource
  maxActive=100 maxIdle=30 maxWait=1
  username=mylogin password=mypass
  driverClassName=com.mysql.jdbc.Driver
  logAbandoned=true removeAbandoned=true
  removeAbandonedTimeout=60
  url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/
 
  WEB-INF/web.xml :
 
 resource-ref
   descriptionTABS DB Connection/description
   res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
   res-typejavax.sql.DataSource/res-type
   res-authContainer/res-auth
 /resource-ref
 
 
  Java Code:
 
 InitialContext cxt = new InitialContext();
 if ( cxt == null ) {
 throw new Exception(InitialContext is NULL);
 }
 
 DataSource ds = (DataSource) cxt.lookup(
  java:/comp/env/jdbc/tabscorp_tabsdb );
 if ( ds == null ) {
 throw new Exception(Data source not found);
 }
 
 Connection conn = ds.getConnection();
 if ( conn == null) {
 throw new Exception(Connection is null);
 }
 
 stmt = connection.createStatement();
 
 
  I am getting a conn == null , but no other information, so I am having
  trouble debugging.
  suggestions?
 
  thanks
 

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RE: [OT] Apache httpd prefork versus worker MPM

2009-07-18 Thread Martin Gainty

the inherent problem with multi-threaded model vs prefork n processes

http://blog.zakame.net/tips/apache2-worker-lowmem

http://www.experts-exchange.com/Software/Server_Software/Web_Servers/Apache/Q_24192924.html

rule seems to be more than 1 CPU go with worker
1 CPU go with MPM

once you set your path on Worker all modules and all binaries under Apache have
to be multi-threaded

YMMV

Martin
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Date: Fri, 17 Jul 2009 21:17:51 -0400
From: ch...@christopherschultz.net
To: users@tomcat.apache.org
Subject: [OT] Apache httpd prefork versus worker MPM

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

All,

I've been working with Apache httpd and Tomcat together with mod_jk for
about 10 years, and I've always been using the prefork MPM. I'm setting
up a new development server with Debian Lenny and apt-get prefers to
install the worker MPM. I can definitely install the prefork MPM if I
want, but I figured I'd take this opportunity to ask about the worker MPM.

Has anyone had any configuration problems when using the worker MPM? Any
performance problems? The worker MPM is advertised as high-performance
and I was wondering if it would be a PITA to use or anything like that.

If the worker MPM really is higher performance, I'd prefer to use that,
but only if there are no big gotchas that anyone can think of.

I'd appreciate some feedback from folks that have used both the prefork
and worker MPMs at one point, and might be able to comment on their
different experiences.

Thanks,
- -chris
-BEGIN PGP SIGNATURE-
Version: GnuPG v1.4.9 (MingW32)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAkphIr8ACgkQ9CaO5/Lv0PCM8gCePSdyOk5U1rt5yndOsrta/E+B
yuQAnjmhsTZn6s9Fg0Z8x3QgJRh9ejw7
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RE: Tomcat 6 database pooling causes HttpServlet class not found exception

 From: Lucas Vickers [mailto:lucasvick...@gmail.com]
 Subject: Re: Tomcat 6 database pooling causes HttpServlet class not
 found exception

 Well I can confirm that adding the classes to catalina.policy
 even when i am not explicitly running with -security , does fix the
 issue

What exactly did you change in catalina.policy?

What happens if you undo those changes (and only those changes) now?

 - Chuck

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
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RE: tomcat 6 database pooling, DataSource returning NULL connection

 From: Lucas Vickers [mailto:lucasvick...@gmail.com]
 Subject: Re: tomcat 6 database pooling, DataSource returning NULL
 connection

 I am doing a static install and restarting my tomcat each time I 
 make a file change, so I do not think this is the issue.

Actually, that's exactly the procedure that can cause the problem.  When the 
webapp is first loaded, Tomcat copies the webapp's META-INF/context.xml file to 
conf/Catalina/[host]/[appName].xml.  As long as the 
conf/Catalina/[host]/[appName].xml file exists, it will override the one in 
META-INF/context.xml.  Proper undeployment will remove the copied Context 
element; just copying over a new version of the webapp will not.

 - Chuck

THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY 
MATERIAL and is thus for use only by the intended recipient. If you received 
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Re: Tomcat 6 database pooling causes HttpServlet class not found exception

Well I can confirm that adding the classes to catalina.policy
even when i am not explicitly running with -security , does fix the issue

On Sat, Jul 18, 2009 at 8:48 PM, Caldarale, Charles R 
chuck.caldar...@unisys.com wrote:

  From: David Smith [mailto:d...@cornell.edu]
  Subject: Re: Tomcat 6 database pooling causes HttpServlet class not
  found exception

  and I see it looks like you have the JVM's security manager
  turned on.

 What makes you think so?  The doPrivileged() calls and SecureClassLoader
 usage occur with or without a security manager; what happens inside those
 places is what's different.

  - Chuck

 THIS COMMUNICATION MAY CONTAIN CONFIDENTIAL AND/OR OTHERWISE PROPRIETARY
 MATERIAL and is thus for use only by the intended recipient. If you received
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 attachments from all computers.

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Re: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE

32-bit

2009/7/19 Konstantin Kolinko knst.koli...@gmail.com

 Is you Windows  32-bit, or 64-bit one?


 2009/7/18 Varuna Seneviratna varunasenevira...@gmail.com:
  Manually you can get it running But it is not possible to install using
 the
  setup apache-tomcat-6.0.20.exe.
 
  Varuna
 
  2009/7/18 Mark Thomas ma...@apache.org
 
  Varuna Seneviratna wrote:
   When I run the set up apache-tomcat-6.0.20.exe for WindowsXP I get the
   message from the Tomcat Setup as Failed to install tomcat6 service
 check
   your settings and permissions.I have the permissions.The only thing I
  think
   that is different from the setup needs is the JRE version.But the
 tomcat-
   preconfigured-6.0.18.zip downloaded from coreservlets.com
   http://coreservlets.com%20works fine with the J2SE 6 JRE.
  
   Your ideas please!!
 
  Start the service manually, tell us what error(s) you get.
 
  Mark
 
 
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  --
  Kind Regards Varuna
 
  Varuna Seneviratna
  No 514 Udumulla Road
  Battaramulla
  Sri Lanka
  Tel : 011-2888620
  Mobile:0715617141
 

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-- 
Kind Regards Varuna

Varuna Seneviratna
No 514 Udumulla Road
Battaramulla
Sri Lanka
Tel : 011-2888620
Mobile:0715617141

Re: Tomcat 6 database pooling causes HttpServlet class not found exception

// == WEB APPLICATION PERMISSIONS
=


// These permissions are granted by default to all web applications
// In addition, a web application will be given a read FilePermission
// and JndiPermission for all files and directories in its document root.
grant {
...

// Needed for TABS
permission java.util.PropertyPermission org.apache.tomcat.dbcp.*,
read;
permission java.util.PropertyPermission javax.servlet.*, read;
permission java.util.PropertyPermission javax.servlet.http.*, read;


was added.  I tested by commenting out and then uncommenting.  Works when
it's not commented out.


I run using catalina.sh start

if commented out, I get:

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: Error allocating a servlet instance

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)

*root cause*

java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)

*root cause*

java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
java.net.URLClassLoader$1.run(URLClassLoader.java:200)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)
java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
java.lang.ClassLoader.defineClass1(Native Method)
java.lang.ClassLoader.defineClass(ClassLoader.java:621)
java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
java.net.URLClassLoader.access$000(URLClassLoader.java:56)
java.net.URLClassLoader$1.run(URLClassLoader.java:195)
java.security.AccessController.doPrivileged(Native Method)
java.net.URLClassLoader.findClass(URLClassLoader.java:188)
java.lang.ClassLoader.loadClass(ClassLoader.java:307)
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
java.lang.ClassLoader.loadClass(ClassLoader.java:252)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)

org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
java.lang.Thread.run(Thread.java:619)

*note* *The full stack trace of the root cause is available in the Apache
Tomcat/6.0.20 logs.*

tomcat 6 database pooling, DataSource returning NULL connection

I am trying to configure database pooling in tomcat 6.

I have:

/META-INF/context.xml :
  Resource name=jdbc/tabscorp_tabsdb
 auth=Container
 type=javax.sql.DataSource
 maxActive=100 maxIdle=30 maxWait=1
 username=tabscorp_tabs password=Ramsalot52
 driverClassName=com.mysql.jdbc.Driver
 logAbandoned=true removeAbandoned=true
 removeAbandonedTimeout=60

url=jdbc:mysql://localhost:3306/tabscorp_tabsdb?autoReconnect=true/

Re: tomcat 6 database pooling, DataSource returning NULL connection

woops, email was sent prematurely

anyway, the full email:

META-INF/context.xml :

  Resource
 name=jdbc/tabscorp_tabsdb
 auth=Container
 type=javax.sql.DataSource
 maxActive=100 maxIdle=30 maxWait=1
 username=mylogin password=mypass
 driverClassName=com.mysql.jdbc.Driver
 logAbandoned=true removeAbandoned=true
 removeAbandonedTimeout=60
 url=jdbc:mysql://localhost:3306/mydb?autoReconnect=true/

WEB-INF/web.xml :

resource-ref
  descriptionTABS DB Connection/description
  res-ref-namejdbc/tabscorp_tabsdb/res-ref-name
  res-typejavax.sql.DataSource/res-type
  res-authContainer/res-auth
/resource-ref


Java Code:

InitialContext cxt = new InitialContext();
if ( cxt == null ) {
throw new Exception(InitialContext is NULL);
}

DataSource ds = (DataSource) cxt.lookup(
java:/comp/env/jdbc/tabscorp_tabsdb );
if ( ds == null ) {
throw new Exception(Data source not found);
}

Connection conn = ds.getConnection();
if ( conn == null) {
throw new Exception(Connection is null);
}

stmt = connection.createStatement();


I am getting a conn == null , but no other information, so I am having
trouble debugging.
suggestions?

thanks

Converting to container based security.

2009-07-18 Thread Bill Davidson

Tomcat 6.0.18
Java 1.6.0_14
RedHat 5.2 Server
Oracle 10g

I've got an old web app that was originally spec'd in 1999.  Last year, I
got
it migrated from Tomcat 3.2.4 for 6.0.16 and more recently from Java 1.4.2
to 1.6.  I'm gradually trying to modernize it.  I just converted from using
an old database connection pool library from that period to using a
DataSource managed by Tomcat/DBCP (which was surprisingly easy).
Now I want to tackle container based security.

The app currently manages its own security.  It's all servlets which do a
little session magic on their own.  The login servlet hits the database
where
the user names and password are.  I want to start using JSP and/or maybe
JSF, which is part of the reason I want to go to container based security.

I'm thinking that the login.jsp can be set up with a bean to massage the
session so that old servlets will still be satisfied that the session is
legit.
Newer servlets can dispense with that security and older ones can have
it taken out gradually over time (over 200 of them).

While it's actually just one web app, conceptually, it's two.  There's one
side
which is an administrative side, and another for the general public.  Some
servlets are used by one side, other servlets are used by the other.  They
all
use the same database, and share a lot of the same objects and data, however
the user names and passwords are in different database tables.  Also, the
public
side can be used anonymously (no need to log in).  Login mainly gives the
public
side the ability to store preferences so that it doesn't need to be
re-entered
and keep track of history.

I've been going over the realm documentation, and it's a little confusing.
I think that I'm actually going to need two realms, one for each side
(remember that they use different tables).  I'm not exactly sure how to
set that up.

I'd like to use a DataSourceRealm, using the DataSource I've already
set up, however I've also got the problem that the programmers who set this
up stored the passwords UNIX/Linux style with a Java implementation of
crypt(3), which doesn't seem to be one of the options for MessageDigest.
I hope I'm wrong about that.  Given how common it is in the UNIX/Linux
world, I'd think that would be a good one to have (and please don't tell me
that it's not that secure -- that's not the point -- this is a compatibility
issue).
Does this mean I'm going to need to write my own custom realm?  That
looks fairly confusing too.

Can someone please point me at a good overall strategy for how to tackle
all of this, given these constraints?  I've only spent a few hours trying to
go through the docs but I'm feeling a bit overwhelmed and really need
some perspective.

Re: Tomcat 6 database pooling causes HttpServlet class not found exception

For what it's worth.

Every now and then tomcat throws that exception again.
I then shut down tomcat, touch the .policy file, start tomcat, and it works.

On Sat, Jul 18, 2009 at 9:29 PM, Lucas Vickers lucasvick...@gmail.comwrote:

 // == WEB APPLICATION PERMISSIONS
 =


 // These permissions are granted by default to all web applications
 // In addition, a web application will be given a read FilePermission
 // and JndiPermission for all files and directories in its document root.
 grant {
 ...

 // Needed for TABS
 permission java.util.PropertyPermission org.apache.tomcat.dbcp.*,
 read;
 permission java.util.PropertyPermission javax.servlet.*, read;
 permission java.util.PropertyPermission javax.servlet.http.*, read;


 was added.  I tested by commenting out and then uncommenting.  Works when
 it's not commented out.


 I run using catalina.sh start

 if commented out, I get:


 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: Error allocating a servlet instance
   
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

   
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)
   
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)

   java.lang.Thread.run(Thread.java:619)

 *root cause*

 java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet
   java.lang.ClassLoader.defineClass1(Native Method)
   java.lang.ClassLoader.defineClass(ClassLoader.java:621)

   java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
   java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
   java.net.URLClassLoader.access$000(URLClassLoader.java:56)
   java.net.URLClassLoader$1.run(URLClassLoader.java:195)

   java.security.AccessController.doPrivileged(Native Method)
   java.net.URLClassLoader.findClass(URLClassLoader.java:188)
   java.lang.ClassLoader.loadClass(ClassLoader.java:307)
   sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)

   java.lang.ClassLoader.loadClass(ClassLoader.java:252)
   
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)
   
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)

   
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
   
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

   
 org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
   org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)
   java.lang.Thread.run(Thread.java:619)

 *root cause*

 java.lang.ClassNotFoundException: javax.servlet.http.HttpServlet
   java.net.URLClassLoader$1.run(URLClassLoader.java:200)
   java.security.AccessController.doPrivileged(Native Method)
   java.net.URLClassLoader.findClass(URLClassLoader.java:188)

   java.lang.ClassLoader.loadClass(ClassLoader.java:307)
   sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
   java.lang.ClassLoader.loadClass(ClassLoader.java:252)
   java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)

   java.lang.ClassLoader.defineClass1(Native Method)
   java.lang.ClassLoader.defineClass(ClassLoader.java:621)
   java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
   java.net.URLClassLoader.defineClass(URLClassLoader.java:260)

   java.net.URLClassLoader.access$000(URLClassLoader.java:56)
   java.net.URLClassLoader$1.run(URLClassLoader.java:195)
   java.security.AccessController.doPrivileged(Native Method)
   java.net.URLClassLoader.findClass(URLClassLoader.java:188)

   java.lang.ClassLoader.loadClass(ClassLoader.java:307)
   sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
   java.lang.ClassLoader.loadClass(ClassLoader.java:252)
   
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1302)

   
 org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1233)
   
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)

   
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)

Re: Is it not possible to install apache-tomcat-6.0.20 with a J2SE 5 JRE