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From "Larry Isaacs" <Larry.Isa...@sas.com>
Subject RE: Error loop for R - Tomcat 3.3.1a
Date Tue, 10 Jan 2006 14:17:53 GMT
I'm afraid I don't have any simple guesses as to
what to change.  It appears there are multiple forwards
occurring and it may be the "multiple" that is the
root cause of this behavior.  You can experiment with
changes to see what happens, or try to run tomcat in
a debugger to see if you can determine what
"((HttpServletRequest) request).getServletPath()" is
returning and why it doesn't have the expected '/'.
If you want to try the latter, source for Tomcat 3.3.1
or 3.3.1.a can be found here:

http://archive.apache.org/dist/tomcat/tomcat-3/archive/

An alternative to debugging is to create a "classes"
directory under "lib/container" and extract the source
for PageContextImpl into the package appropriate
subdirectory.  Then add "System.out.println()s", and
compile.  When Tomcat is run, the PageContextImpl under
"classes" will take precedence over the one in
jasper.jar, allowing you to gather clues.

HTH,
Larry


> -----Original Message-----
> From: Siddhartha Mehta [mailto:mehtasd78@yahoo.com] 
> Sent: Tuesday, January 10, 2006 8:51 AM
> To: Tomcat Users List
> Subject: RE: Error loop for R - Tomcat 3.3.1a
> 
> Hey Larry,
>    
>   Finally a refresh click brought a smile on my face :-)
>    
>   Yeah, it is one of those scenarios where people want 
> backward support as against to moving forward.
>    
>   One thing that I dont understand is that the UIs are 
> working very well. In fact I am able to change the password 
> (that is when these exceptions are thrown) and is updated as 
> well. Then why this backend exception. Any thoughts here?
>    
>   Also, there is a forward that is called before the 
> "include" as you pointed out. Do you have any ideas on what 
> tweaking I can try?
>    
>   Thanks again for your reply.
>    
>   Sid
>    
>   
> 
> Larry Isaacs <Larry.Isaacs@sas.com> wrote:
>   Sid,
> 
> The code where the exception is occurring is:
> 
> private final String getAbsolutePathRelativeToContext(String 
> relativeUrlPath) { String path = relativeUrlPath;
> 
> if (!path.startsWith("/")) {
> String uri = (String) 
> request.getAttribute("javax.servlet.include.servlet_path");
> if (uri == null)
> uri = ((HttpServletRequest) request).getServletPath();
> 401 String baseURI = uri.substring(0, uri.lastIndexOf('/')); 
> path = baseURI+'/'+path; }
> 
> return path;
> }
> 
> The code is trying to convert the "weblmpagetop.jsp" relative 
> path to a path from the root of the webapp. What Jasper has 
> to work with to establish where "weblmpagetop.jsp" is located 
> is failing the "uri.lastIndexOf('/')". This suggests the 
> problem is related to the "forwards" that are occurring prior 
> to reaching the "include". Perhaps there is something that 
> needs to start with a '/' that doesn't.
> 
> I can't say that this isn't due to a quirk, bug, or spec 
> ambiguity, as opposed the webapp doing something wrong with 
> respect to the Servlet 2.2 spec. It sounds like you are stuck 
> with 3.3.1 as is. Hopefully a reasonable workaround can be found.
> 
> Cheers,
> Larry
> 
> 
> > -----Original Message-----
> > From: Siddhartha Mehta [mailto:mehtasd78@yahoo.com]
> > Sent: Tuesday, January 10, 2006 1:50 AM
> > To: users@tomcat.apache.org
> > Subject: Error loop for R - Tomcat 3.3.1a
> > 
> > I am currently working on a web application that uses Tomcat 4.1.27 
> > and JDK 1.4.2_03.
> > 
> > The same piece of code now needs to be supported on Tomcat
> > 3.3.1 and JDK 1.4.2_08. I managed to get the classes, jsps coompile 
> > and built by modifying the ant script. In fact even the application 
> > runs perfect and the functionalities are working as expected. 
> > Although, all is not good as it seems so. In the backend, 
> the tomcat - 
> > startup windows isn't quite happy with the changes. I 
> repeatedly get 
> > the following error and I can make out very little from it.
> > 
> > I can think of possible cause as this code in my jsp but not really 
> > sure:
> > 
> > ....
> > 
> > 
> > " name="body-title-text">
> > > %>" name="body-location-text">....
> > 
> > Exception thrown in tomcat-start up window is below:
> > 
> > 2006-01-10 11:48:04 - Ctx(/WebLM) : Exception in R( /WebLM + 
> > /weblmlogin.jsp + n
> > ull) - javax.servlet.ServletException: String index out of 
> range: -1 
> > at 
> > 
> org.apache.jasper.runtime.PageContextImpl.handlePageException(PageCon
> > textImpl.java:460)
> > at com.avaya.weblm.weblmlogin._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > com.avaya.weblm.WebLMServlet.forwardToNextPage(Unknown Source) at 
> > com.avaya.weblm.WebLMClientLogin.doPost(Unknown Source) at 
> > javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.jav
> > a:423)
> > at com.avaya.weblm.weblmlogin._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.jav
> > a:423)
> > at com.avaya.weblm.index._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.core.ContextManager.internalService(ContextManager.
> > java:917)
> > at
> > 
> org.apache.tomcat.core.ContextManager.service(ContextManager.java:833
> > )
> > at
> > 
> org.apache.tomcat.modules.server.Http10Interceptor.processConnection(
> > Http10Interceptor.java:176)
> > at
> > 
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
> > :494)
> > at
> > 
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
> > ool.java:516)
> > at java.lang.Thread.run(Thread.java:534)
> > Root cause:
> > java.lang.StringIndexOutOfBoundsException: String index out 
> of range: 
> > -1 at java.lang.String.substring(String.java:1444)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.getAbsolutePathRelativeToCo
> > ntext(PageContextImpl.java:401)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.include(PageContextImpl.jav
> > a:411)
> > at com.avaya.weblm.weblmlogin._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > com.avaya.weblm.WebLMServlet.forwardToNextPage(Unknown Source) at 
> > com.avaya.weblm.WebLMClientLogin.doPost(Unknown Source) at 
> > javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.jav
> > a:423)
> > at com.avaya.weblm.weblmlogin._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.doForward(RequestDispa
> > tcherImpl.java:272)
> > at
> > 
> org.apache.tomcat.facade.RequestDispatcherImpl.forward(RequestDispatc
> > herImpl.java:174)
> > at
> > 
> org.apache.jasper.runtime.PageContextImpl.forward(PageContextImpl.jav
> > a:423)
> > at com.avaya.weblm.index._jspService(Unknown Source) at
> > org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:119)
> > at javax.servlet.http.HttpServlet.service(HttpServlet.java)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.doService(ServletHandler.java
> > :574)
> > at org.apache.tomcat.core.Handler.invoke(Handler.java:322)
> > at org.apache.tomcat.core.Handler.service(Handler.java:235)
> > at
> > 
> org.apache.tomcat.facade.ServletHandler.service(ServletHandler.java:4
> > 85)
> > at
> > 
> org.apache.tomcat.core.ContextManager.internalService(ContextManager.
> > java:917)
> > at
> > 
> org.apache.tomcat.core.ContextManager.service(ContextManager.java:833
> > )
> > at
> > 
> org.apache.tomcat.modules.server.Http10Interceptor.processConnection(
> > Http10Interceptor.java:176)
> > at
> > 
> org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
> > :494)
> > at
> > 
> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
> > ool.java:516)
> > at java.lang.Thread.run(Thread.java:534)
> > 
> > 2006-01-10 11:48:04 - ErrorHandler: Error loop for R( /WebLM
> > + /weblmlogin.jsp +
> > null) error javax.servlet.ServletException: String index 
> out of range: 
> > -1
> > 
> > Any help/pointer/suggestion is highly appreciated.
> > 
> > Thanks
> > 
> > Sid
> > 
> > 
> > 
> > ---------------------------------
> > Yahoo! DSL Something to write home about. Just $16.99/mo. or less
> > 
> 
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>   
> 
> 
> 		
> ---------------------------------
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