Weblogic 7.0 and 6.1 javax.servlet.filter implementation

          Hi All,
          I was using weblogic 6.1 and as my organization wants to go for 7.0, we
          are in the process of evaluating 7.0 ver.
          WL6.1 javax.servlet.filter interface provides the methods doFilter(), setFilterConfig(),
          getFilterConfig(). We have an implementation for the Filter which also contains
          a private method init(FilterCongig filterConfig).
          In 7.0 javax.servlet.filter interface the methods are doFilter(), init(), destroy().
          Because of the obvious reason i have a private implementation of init(FilterConfig
          )in my code the build does not succeed. When i checked the java specifications
          from Sun site I found 1.3.1 and 1.4(beta) specs provide doFilter(), init() and
          destroy().
          Question is: Is weblogic 6.1, JDK 1.3.1 compliant, if so why there is not init()
          method in the filter interface??. (Otherwise its a bug)
          Because of this the porting has become a serious issue as in some cases we need
          to support both 6.1 and 7.0

6.1 did not implement the final version of the Servlet 2.3 specification, that's
          why you see differences.
          http://edocs.bea.com/wls/docs61/notes/new.html#1064420
          Sanjeev <[email protected]> wrote:
          > Hi All,
          > I was using weblogic 6.1 and as my organization wants to go for 7.0, we
          > are in the process of evaluating 7.0 ver.
          > WL6.1 javax.servlet.filter interface provides the methods doFilter(), setFilterConfig(),
          > getFilterConfig(). We have an implementation for the Filter which also contains
          > a private method init(FilterCongig filterConfig).
          > In 7.0 javax.servlet.filter interface the methods are doFilter(), init(), destroy().
          > Because of the obvious reason i have a private implementation of init(FilterConfig
          > )in my code the build does not succeed. When i checked the java specifications
          > from Sun site I found 1.3.1 and 1.4(beta) specs provide doFilter(), init() and
          > destroy().
          > Question is: Is weblogic 6.1, JDK 1.3.1 compliant, if so why there is not init()
          > method in the filter interface??. (Otherwise its a bug)
          > Because of this the porting has become a serious issue as in some cases we need
          > to support both 6.1 and 7.0
          Dimitri

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Weblogic.utils.NestedRuntimeException when using javax.servlet.Filter

IDE: JDev 10gR3.4 & JDev 11gR2.3
ViewController technology: JSF/ADF Faces
Example code flow:
Run page2.jsf
MyFilter intercepts request, checks for parameter on session.
If parameter not null, goto page2.jsf
Else redirect to page1.jsf
page1.jsf has a button that sets the value on the session scope after clicking.
In jdev 11gR2.3, I get an weblogic.utils.NestedRuntimeException after clicking the button on page1.jsf. This error does not occur in jdev 10gR3.5. Although the application continues to execute and proper info is displayed, I’m wondering why this occurs and also if I should be concerned. Has anyone experienced a similar issue when using javax.servlet.Filter in 11g?
MyFilter code snipet:
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page1.jsf/jsp
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<f:view xmlns:f="http://java.sun.com/jsf/core" xmlns:h="http://java.sun.com/jsf/html">
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</f:view>page2.jsf/jsp
<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<f:view xmlns:f="http://java.sun.com/jsf/core" xmlns:af="http://xmlns.oracle.com/adf/faces/rich">
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</f:view>Page1Bean.java
public class Page1Bean {
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     at weblogic.servlet.internal.ServletRequestImpl$RequestParameters.getQueryParams(ServletRequestImpl.java:1918)
     at weblogic.servlet.internal.ServletRequestImpl$RequestParameters.getParameter(ServletRequestImpl.java:1995)
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     at org.apache.myfaces.trinidadinternal.context.external.AbstractAttributeMap.get(AbstractAttributeMap.java:73)
     at oracle.adfinternal.controller.state.ControllerState.getRootViewPortFromRequest(ControllerState.java:788)
     at oracle.adfinternal.controller.state.AdfcContext.initialize(AdfcContext.java:185)
     at oracle.adfinternal.controller.state.AdfcContext.initialize(AdfcContext.java:79)
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     at org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl._startConfiguratorServiceRequest(GlobalConfiguratorImpl.java:562)
     at org.apache.myfaces.trinidadinternal.config.GlobalConfiguratorImpl.beginRequest(GlobalConfiguratorImpl.java:212)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:174)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.ee.http.JpsAbsFilter$1.run(JpsAbsFilter.java:119)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:315)
     at oracle.security.jps.ee.util.JpsPlatformUtil.runJaasMode(JpsPlatformUtil.java:442)
     at oracle.security.jps.ee.http.JpsAbsFilter.runJaasMode(JpsAbsFilter.java:103)
     at oracle.security.jps.ee.http.JpsAbsFilter.doFilter(JpsAbsFilter.java:171)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:71)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.servlet.DMSServletFilter.doFilter(DMSServletFilter.java:139)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.wrapRun(WebAppServletContext.java:3715)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3681)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2277)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2183)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1454)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
Caused by: java.net.SocketException: Connection reset
     at java.net.SocketInputStream.read(SocketInputStream.java:168)
     at weblogic.servlet.internal.PostInputStream.read(PostInputStream.java:177)
     at weblogic.servlet.internal.ServletInputStreamImpl.read(ServletInputStreamImpl.java:228)
     at weblogic.servlet.internal.ServletRequestImpl$RequestParameters.mergePostParams(ServletRequestImpl.java:2118)
     ... 39 more
<UIXEditableValue> <_isBeanValidationAvailable> A Bean Validation provider is not present, therefore bean validation is disabled

I dont believe that solution pertains to my case. clicked() is invoked from standard jsf page and the adf controller is not acquired yet. i put a couple of print statements in the filter and it seems that the doFilter is called twice! This is not the case when running in 10g.
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                System.out.println("URI dofilter: "+uri);
                filterChain.doFilter(servletRequest, servletResponse);
            } else {
                System.out.println("URI sendRedirect: "+uri);
                httpResponse.sendRedirect(redirect);
            }11g weblogic console log:
URI sendRedirect: /11gFilterExample-ViewController-context-root/faces/page2
URI dofilter: /11gFilterExample-ViewController-context-root/faces/page1.jsf
URI dofilter: /11gFilterExample-ViewController-context-root/faces/page1.jsf
10g oc4j console log:
13/01/07 15:48:13 URI sendRedirect: /10gFilterExample-ViewController-context-root/faces/page2.jsp
13/01/07 15:48:13 URI dofilter: /10gFilterExample-ViewController-context-root/faces/page1.jsp
I believe whatever thats causing this occur could be why the exception is thrown...

Form based j_security_check with javax.servlet.Filter and some pesky images

We have defined the web app to use Form based authentication. Some of the images internal to our application we would like to allow access without having to formally log into the system. In order to accomodate this we have created an javax.servlet.Filter where we strip off some parameters off of the end of the url to log them in.
This works great for everything EXCEPT urls that are in <img src> tags. urls in these tags will never hit the filter. You can take the same url and place it in the browser and it will hit the filter. Its just urls in <img src> tags.
The images cannot be moved to a public place, they must stay where they are.
Does anyone know why the <img src> tag is doing this? It is fairly easy to replicate. Just use form based authentication, create a filter, and try to access an image from an img src tag.
Be sure to clear your browser cache and try again if you think you have it working.
Any security gods out there?
Thanks,
Mark

Since nobody responded, I will tell you what we decided to do. For images, we use a servlet outside of the security wall that loads and streams an image back to the browser instead of a direct image url.
So we do something like this:
<img src="https:\\foo.com\Servlet\ImageDisplay?id=1234&user=23432">
Then our servlet parses the params, finds and streams back the image, and instead of returning back "html\text" in the servlet, the servlet returns something like this:
HttpServletResponse response = blah...
BufferedImage bi = new BufferedImage("load in the image resource");
try {
response.setContentType("image/gif");
ServletOutputStream out = response.getOutputStream();
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out);
encoder.encode(bi);
catch (IOException ioe) {
servlet.log("DrawMapAction: IO Exception encoding JPEG to ServletOutputStream.", ioe);
}

Implenting javax.servlet.Filter issue in Eclipse

I received a java class from my team, and am trying to compile it in Eclipse. However, its complaining that I need to define getFilterConfig() and setFilterConfig().
I mean, I can easily implement those methods, but the odd thing is, my teamates have been able to compile it fine without those two methods.
Any ideas why this is happening?

To implement a javax.servlet.Filter all you need to override are just the three methods mentioned in the Filter API: [http://java.sun.com/javaee/5/docs/api/javax/servlet/Filter.html].
Is it actually a javax.servlet.Filter which you're implementing? Check the implements clause of your class.

Does Weblogic 5.1 support the STANDARD javax.servlet.request.X509Certificate attribute?

Hello!
My strong suspicion from looking at the Weblogic SSL documentation on
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Regards,
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I just verified this with the Java doc. Either the Java documentation is
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Thanks,
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Michael Girdley
Product Manager, WebLogic Server & Express
BEA Systems Inc
"James Webster" <[email protected]> wrote in message
news:[email protected]..
Hello!
My strong suspicion from looking at the Weblogic SSL documentation on
http://e-docs.bea.com is that WebLogic SSL does not put any client-side
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When will Weblogic support this aspect of the Servlet 2.2 specification,
if it doesn't already?
Regards,
James W.

[javax.servlet.Filter] can i apply multiple jsp & servlet to a filter?

i have try to applied multiple jsp page & it runs correctly.
my descriptor is like this:
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        <filter-name>AnonymousFilter</filter-name>
        <url-pattern>/user/a.jsp</url-pattern>
        <url-pattern>/user/b.jsp</url-pattern>
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i have tried descriptor like this:
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        <url-pattern>/user/a.jsp</url-pattern>
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        <url-pattern>/user/c.jsp</url-pattern>
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is the descriptor wrong? what is the correct descriptor?
thank you.

i forgot about dispatcher type...
the servlet is accessed via FORWARD
& i map the servlet to /WEB-INF/dServlet...
it is wrong? but the servlet is accessible...
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        <servlet-name>dServlet</servlet-name>
        <url-pattern>/WEB-INF/dServlet</url-pattern>
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        <filter-name>AnonymousFilter</filter-name>
        <url-pattern>/user/a.jsp</url-pattern>
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        <filter-name>AnonymousFilter</filter-name>
        <url-pattern>/user/b.jsp</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>AnonymousFilter</filter-name>
        <url-pattern>/user/c.jsp</url-pattern>
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        <servlet-name>dServlet</servlet-name>
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    </filter-mapping>i put this inside the filter:
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Javax.servlet.Filter

I was curious about gzip compression with JSP's and came across Filters in previous threads. I read the Servlet 2.3 specs and would like to implement a Filter on my jsp's. Does anybody have an example of how to do this? I can't find any tutorials.
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Javax.servlet.Filter, throw file not found exception

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Nothing is not possible.
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The 204 response MUST NOT include a message-body, and thus is always terminated by the first empty line after the header fields.
(RFC 2616 Fielding, et al.)

Javax.servlet.ServletException: Servlet execution threw an exception

Hi guys...
I got an error message after I click a button on my page. Before my action class called, servlet throw an exception.
this is the error message from my eclipse console.
15:31:31,062 INFO [STDOUT] javax.servlet.ServletException: Servlet execution threw an exception
15:31:31,062 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:275)
15:31:31,062 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at roll.mov.j2ee.common.filters.AuthenticationFilter.doFilter(AuthenticationFilter.java:167)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at roll.mov.j2ee.common.filters.PersistFilter.doFilter(PersistenceFilter.java:160)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
15:31:31,156 INFO [STDOUT]      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
15:31:31,156 INFO [STDOUT]      at java.lang.Thread.run(Thread.java:595)
15:31:31,156 ERROR [PersistFilter] Exception object caught by servlet persist filter.
15:31:31,171 ERROR [[action]] Servlet.service() for servlet action threw exception
roll.mov.j2ee.common.exceptions.RollMovException: Error caught
begin nested exception:
javax.servlet.ServletException: Servlet execution threw an exception
end nested exception:
javax.servlet.ServletException: Servlet execution threw an exception
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:275)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at roll.mov.j2ee.common.filters.AuthenticationFilter.doFilter(AuthenticationFilter.java:167)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at roll.mov.j2ee.common.filters.PersistenceFilter.doFilter(PersistenceFilter.java:160)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
     at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
     at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
     at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
     at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)
Note:
- roll.mov.j2ee.common.exceptions.RollMovException is my custom exception.
- roll.mov.j2ee.common.filters.AuthenticationFilter, implement javax.servlet.Filter
- roll.mov.j2ee.common.filters.PersistFilter, implement javax.servlet.Filter
this persistFilter work as proxy hibernate filterFrom my experience, Normally the root cause will be display in the exception. but this error message doesn't provide any information about what's wrong with my code.
Anyone have an idea?
Thanks in advamce
pdt

Thanks for replying gimbal2.
in that line, " AuthenticationFilter.java:167" i called the
filterChain.doFilter(request, response);where filterChain is object of javax.servlet.FilterChain
I run my jboss with debug mode and i got abit more information about the error.
the error message:
2006-07-20 12:56:48,437 WARN [org.apache.struts.action.RequestProcessor] Unhandled Exception thrown: class java.lang.NullPointerException
2006-07-20 12:56:48,437 INFO [STDOUT] ServletException thrown
2006-07-20 12:56:48,437 INFO [STDOUT] javax.servlet.ServletException
2006-07-20 12:56:48,437 INFO [STDOUT]      at org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:523)
2006-07-20 12:56:48,437 INFO [STDOUT]      at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)
2006-07-20 12:56:48,437 INFO [STDOUT]      at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
2006-07-20 12:56:48,437 INFO [STDOUT]      at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
2006-07-20 12:56:48,437 INFO [STDOUT]      at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
2006-07-20 12:56:48,437 INFO [STDOUT]      at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
2006-07-20 12:56:48,437 INFO [STDOUT]      at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
15:31:31,062 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:275)
15:31:31,062 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at roll.mov.j2ee.common.filters.AuthenticationFilter.doFilter(AuthenticationFilter.java:167)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at roll.mov.j2ee.common.filters.PersistFilter.doFilter(PersistenceFilter.java:160)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
15:31:31,156 INFO [STDOUT]      at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
15:31:31,156 INFO [STDOUT]      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
15:31:31,156 INFO [STDOUT]      at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
15:31:31,156 INFO [STDOUT]      at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
15:31:31,156 INFO [STDOUT]      at java.lang.Thread.run(Thread.java:595)
15:31:31,156 ERROR [PersistFilter] Exception object caught by servlet persist filter.
15:31:31,171 ERROR [[action]] Servlet.service() for servlet action threw exception
roll.mov.j2ee.common.exceptions.RollMovException: Error caught
begin nested exception:
javax.servlet.ServletException: Servlet execution threw an exception
end nested exception:
javax.servlet.ServletException: Servlet execution threw an exception
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:275)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at roll.mov.j2ee.common.filters.AuthenticationFilter.doFilter(AuthenticationFilter.java:167)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at roll.mov.j2ee.common.filters.PersistenceFilter.doFilter(PersistenceFilter.java:160)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
     at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
     at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:307)
     at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:385)
     at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:748)
     at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:678)
     at org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:871)
     at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
     at java.lang.Thread.run(Thread.java:595)I check in docjar.com, seems like the the line in requestprocessor.java that thrown this exception is
return (handler.execute(exception, config, mapping, form, request, response));     where handler is org.apache.struts.action.ExceptionHandler
any idea guys..
Thanks in advance
pdt

Javax.servlet package -- where is it?

Downloaded latest version of Tomcat and expected the javax.servlet pacakge to be in the folders but it appears to not be. Where can I go to get the jar file for this?

Did you download the lite version of Tomcat for JDK 1.4? I'm not sure what all that leaves out as I've never used it, I always go for the full package, but it's possible it doesn't include javax.servlet since it's part of JDK 1.4.

Javax.servlet ERROR

Hello I new in jsp!!!
I'm compiling a basic jsp project for run on tomcat. The compiler send me and error message javax.servlet does not exist and it's because I only jave instaled the j2sdk. (I think)
What the library that a must download from java to succelfully compil it.
Thanks a lot and sorry for my english.
Diego

If you have Tomcat, then you have the javax.servlet library, and you just need to include it in your classpath at compile time.
It will be in the [tomcat]/common/lib/ directory
Basically if you have -
Tomcat4, the jar you need servlet.jar
Tomcat 5: you need servlet-api.jar and jsp-api.jar
Check out this useful page on setting up Tomcat: http://www.coreservlets.com/Apache-Tomcat-Tutorial/ - specifically the bit on setting your classpath.
Note this only applies to compiling your own servlets. JSPs are automatically compiled by Tomcat.
Cheers,
evnafets

Strange behavior when using servlet filter with simple index.htm

I am new to J2EE development so please tolerate my ignorance. I have a web application that starts with a simple index.htm file. I am using a servlet filter throughout the website to check for session timeout, redirecting the user to a session expiration page if the session has timed out. When I do something as simple as loading the index.htm page in the browser, the .css file and one image file that are associated, or referenced in the file are somehow corrupted and not being rendered. How do I get the filter to ignore css and image files??? Thank you!!
The servlet filter:
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class SessionTimeoutFilter implements Filter {
     String[] excludedPages = {"SessionExpired.jsp","index.htm","index.jsp"};
     String timeoutPage = "SessionExpired.jsp";
     public void destroy() {
     public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
          if ((request instanceof HttpServletRequest) && (response instanceof HttpServletResponse)) {
               HttpServletRequest httpServletRequest = (HttpServletRequest) request;
               HttpServletResponse httpServletResponse = (HttpServletResponse) response;
               //httpServletResponse.setHeader("Cache-Control","no-cache");
               //httpServletResponse.setHeader("Pragma","no-cache");
               //httpServletResponse.setDateHeader ("Expires", 0);
               String requestPath = httpServletRequest.getRequestURI();
               boolean sessionInvalid = httpServletRequest.getSession().getAttribute("loginFlag") != "loggedIn";
               System.out.println(sessionInvalid);
               boolean requestExcluded = false;
               System.out.println(requestExcluded);
               for (int i=0;i<excludedPages.length;i++){
                    if(requestPath.contains(excludedPages)){
                         requestExcluded = true;
               if (sessionInvalid && !requestExcluded){
                    System.out.println("redirecting");
                    httpServletResponse.sendRedirect(timeoutPage);
          // pass the request along the filter chain
          chain.doFilter(request, response);
     public void init(FilterConfig arg0) throws ServletException {
          //System.out.println(arg0.getInitParameter("test-param"));
The index.htm file (or the relevant portion)<HTML>
<Head>
<META http-equiv="Content-Style-Type" content="text/css">
<LINK href="RTEStyleSheet.css" rel="stylesheet" type="text/css">
<TITLE>Login</TITLE>
</HEAD>
<BODY>
<FORM NAME="Login" METHOD="POST" ACTION="rte.ServletLDAP">
<table width="100%" border="0" cellpadding="0" cellspacing="0">
     <tr>
          <td width="30%" align="left"><img src="images/top_logo_new2.gif">
          </td>
          <td width="37%" align="center"></td>
          <td width="33%" align="right"></td>
     </tr>
</table>
My web.xml entry for the filter:     <filter>
          <description>
          Checks for a session timeout on each user request, redirects to logout if the session has expired.</description>
          <display-name>
          SessionTimeoutFilter</display-name>
          <filter-name>SessionTimeoutFilter</filter-name>
          <filter-class>SessionTimeoutFilter</filter-class>
          <init-param>
               <param-name>test-param</param-name>
               <param-value>this is a test parameter</param-value>
          </init-param>
     </filter>
     <filter-mapping>
          <filter-name>SessionTimeoutFilter</filter-name>
          <url-pattern>/*</url-pattern>
          <dispatcher>REQUEST</dispatcher>
          <dispatcher>FORWARD</dispatcher>
     </filter-mapping>

Hi,
Try adding CSS files and images to the excluded Pages.

Servlet Filter

Hi, all
I work on a web application running on a Jboss server and i would like to filter all the http request in order to save it in a database. (i save those informations for manage web stats).
I suppose i may use servlet filter, but i don't know the operation of this
Does anyone could help me giving some example and the protocol to set up this on the server (file server configuration as web.xml)

Well here is what I know. I hope it helps.....
First thing is to create a class that implements the "javax.servlet.Filter" interface. But there are also other Filter interfaces that you could use depending on what you want: Filter, FilterChain, and FilterConfig.
You have to implement the init(), destroy() and doFilter() methods (I ommitted the arguments).
But most of your work will be done in the doFilter () method. You could extract request information from one of the arguments in these method and have a datasource connection to save to your back-end.
Something like :
public void doFilter( ServletRequest request, ServletResponse responce, FilterChain chain ) throws ServletException {
      HttpServletRequest httpRequest = (HttpServletRequest) request;
      backEndDelegate.saveInformation( request.getRemoteAddr(), request.getRemoteHost() );
      chain.doFilter( request, responce );
}Second, you need to configure the Filter. In the web.xml file add the following tags:
<filter>
     <filter-name>StatsFilter</filter-name>
      <description>Logs Web Stats to the back end</description>
     <filter-class>com.yourpackage.StatsFilter</filter-class>
     
      
</filter>
<filter-mapping>
      <filter-name>StatsFilter</filter-name>
      <filter-pattern>*.jsp</filter-pattern>
</filter-mapping>That is just a little example. You can associate a filter with a Servlet using the <filter-mapping> tags too. And you can also do filter chains, but I don't feel like going there.
I sure hope that it was helpful. If not then "RTFM"

Weblogic 4.5.1 intermittent exception java.lang.ClassCastException: javax.servlet.http.NoBodyOutputStream

When running weblogic 4.5.1 on our staging server we get the following
exceptions happening intermitently
Our other servers have identical code and properties files and they are fine
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <ServletContext-Servlets> Servlet
failed with RuntimeException
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <ServletContext-Servlets>
java.lang.ClassCastException: javax.servlet.http.NoBodyOutputStream
at weblogic.servlet.FileServlet.sendFile(Compiled Code)
at weblogic.servlet.FileServlet.doGet(Compiled Code)
at javax.servlet.http.HttpServlet.doHead(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Compiled Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <HTTP> Servlet request terminated
with IOException:
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <HTTP> java.net.ProtocolException:
Exceeded stated content-length of: 1230 bytes
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(Compiled Code)
at java.net.ProtocolException.<init>(Compiled Code)
at weblogic.servlet.internal.ServletOutputStreamImpl.print(Compiled Code)
at javax.servlet.ServletOutputStream.println(ServletOutputStream.java:252)
at
weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.
java:307)
at weblogic.servlet.internal.ServletResponseImpl.sendError(Compiled Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
Any ideas ?

When running weblogic 4.5.1 on our staging server we get the following
exceptions happening intermitently
Our other servers have identical code and properties files and they are fine
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <ServletContext-Servlets> Servlet
failed with RuntimeException
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <ServletContext-Servlets>
java.lang.ClassCastException: javax.servlet.http.NoBodyOutputStream
at weblogic.servlet.FileServlet.sendFile(Compiled Code)
at weblogic.servlet.FileServlet.doGet(Compiled Code)
at javax.servlet.http.HttpServlet.doHead(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at javax.servlet.http.HttpServlet.service(Compiled Code)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(Compiled Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <HTTP> Servlet request terminated
with IOException:
Tue Jul 11 12:03:53 GMT+01:00 2000:<E> <HTTP> java.net.ProtocolException:
Exceeded stated content-length of: 1230 bytes
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.<init>(Compiled Code)
at java.lang.Exception.<init>(Compiled Code)
at java.io.IOException.<init>(Compiled Code)
at java.net.ProtocolException.<init>(Compiled Code)
at weblogic.servlet.internal.ServletOutputStreamImpl.print(Compiled Code)
at javax.servlet.ServletOutputStream.println(ServletOutputStream.java:252)
at
weblogic.servlet.internal.ServletResponseImpl.sendError(ServletResponseImpl.
java:307)
at weblogic.servlet.internal.ServletResponseImpl.sendError(Compiled Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(Compiled
Code)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(Compiled Code)
at weblogic.socket.MuxableSocketHTTP.execute(Compiled Code)
at weblogic.t3.srvr.ExecuteThread.run(Compiled Code)
Any ideas ?

Package javax.servlet.* and javax.xml.rpc.*

Which jar file(s) in Oracle WebLogic Server 10.3 contain these two packages: package javax.servlet.* and javax.xml.rpc.*? Where are they located? Thanks

I don't have access to my WLS installation right now, but normally I use a class finder utility like this one to answer questions like this:
http://www.inetfeedback.com/jarscan/

Weblogic 7.0 and 6.1 javax.servlet.filter implementation

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