Error using IO taglib in BEA 8.1

          Hello,
          I am integrating a web application into BEA 8.1 and everything seems to be getting
          worked out except for 1 thing. In one of my JSP pages I use the Jakarta io taglib
          to send a SOAP message. When I try to run this JSP page I get the following error:
          WARNING: ERROR: Caughtjava.io.FileNotFoundException: Response: '500: Internal
          Se
          rver Error' for url: 'http://[the ip]:8080/axis/services/vkb-resourcemgmt'
          java.io.FileNotFoundException: Response: '500: Internal Server Error' for url:
          http://[the ip]:8080/axis/services/vkb-resourcemgmt'
          at weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.
          java:394)
          at org.apache.taglibs.io.URLTag.getURLInputStream(URLTag.java:274)
          at org.apache.taglibs.io.URLTag.getURLReader(URLTag.java:259)
          at org.apache.taglibs.io.URLTag.readURL(URLTag.java:327)
          at org.apache.taglibs.io.URLTag.doEndTag(URLTag.java:181)
          at jsp_servlet._jsp.__registerproduct._jspService(registerProduct.jsp:31
          The problem is not with the URL being a bad one but there is some internal conflict
          between BEA and the taglib itself. I don't have problems when my web application
          runs outside of BEA (just in Tomcat).
          Thoughts??
          Thanks - Peter
          6)

          "Peter Len" <[email protected]> wrote in message
          news:[email protected]...
          >
          > Hello,
          >
          > I am integrating a web application into BEA 8.1 and everything seems to be
          getting
          > worked out except for 1 thing. In one of my JSP pages I use the Jakarta
          io taglib
          > to send a SOAP message. When I try to run this JSP page I get the
          following error:
          >
          > WARNING: ERROR: Caughtjava.io.FileNotFoundException: Response: '500:
          Internal
          > Se
          > rver Error' for url: 'http://[the ip]:8080/axis/services/vkb-resourcemgmt'
          > java.io.FileNotFoundException: Response: '500: Internal Server Error' for
          url:
          > '
          > http://[the ip]:8080/axis/services/vkb-resourcemgmt'
          > at
          weblogic.net.http.HttpURLConnection.getInputStream(HttpURLConnection.
          > java:394)
          > at org.apache.taglibs.io.URLTag.getURLInputStream(URLTag.java:274)
          > at org.apache.taglibs.io.URLTag.getURLReader(URLTag.java:259)
          > at org.apache.taglibs.io.URLTag.readURL(URLTag.java:327)
          > at org.apache.taglibs.io.URLTag.doEndTag(URLTag.java:181)
          > at
          jsp_servlet._jsp.__registerproduct._jspService(registerProduct.jsp:31
          > ...................................................
          >
          > The problem is not with the URL being a bad one but there is some internal
          conflict
          > between BEA and the taglib itself. I don't have problems when my web
          application
          > runs outside of BEA (just in Tomcat).
          >
          > Thoughts??
          >
          > Thanks - Peter
          > 6)
          Looks like the URL is returning a 500 Internal Server Error which implies an
          exception on the server side. Does the other URL also reside on WebLogic? If
          so you might want to look at the server log and see if there is something
          going on

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     at com.evermind.server.http.ServletRequestDispatcher$2.oc4jRun(ServletRequestDispatcher.java:193)
     at oracle.oc4j.security.OC4JSecurity.doPrivileged(OC4JSecurity.java:283)
     at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:198)
     at com.collaxa.cube.fe.DomainFilter.doFilter(DomainFilter.java:131)
     at com.evermind.server.http.EvermindFilterChain.doFilter(EvermindFilterChain.java:15)
     at oracle.security.jazn.oc4j.JAZNFilter$1.run(JAZNFilter.java:396)
     at java.security.AccessController.doPrivileged(Native Method)
     at javax.security.auth.Subject.doAsPrivileged(Subject.java:517)
     at oracle.security.jazn.oc4j.JAZNFilter.doFilter(JAZNFilter.java:410)
     at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:621)
     at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:370)
     at com.evermind.server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:871)
     at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:453)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:302)
     at com.evermind.server.http.AJPRequestHandler.run(AJPRequestHandler.java:190)
     at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260)
     at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:303)
     at java.lang.Thread.run(Thread.java:595)

Warnings/Errors using getClass().newInstance()

I'm getting some warnings & errors using getClass().newInstance() on an object. I can't however see what's wrong.
First a little background, Bar is a class that manages a set of beans, including creation. One of the actions is to create a special copy of bean, the method that does this does some bookkeeping (such that a particular instance of Bar will only work with objects it created).
This class was originally written in 1.4 and I'm now trying to genericify it.
First attempt:
public class Bar<T extends Foo> {
    public T getFlaggedBean(T fromBean) throws InstantiationException, IllegalAccessException {
        T newBean = fromBean.getClass().newInstance();
        // do some stuff
        return newBean;
}This yielded: "Type mismatch: cannot convert from capture#1-of ? extends Foo to T"
I can cast:
        T newBean = (T) fromBean.getClass().newInstance();Which drops me to a warning a can suppress: "Type safety: Unchecked cast from capture#1-of ? extends Foo to T".
The code runs fine like that, but I'd rather not even have a warning to suppress, I don't like suppress them unless I know that it really is safe.
The code above looks perfectly reasonable to me, I can't figure out why it could be problematic, which leads me to wonder if I'm missing something. We've got a parameter that is of type T or a subclass of it, calling getClass().newInstance() creates an new object such that origobj.getClass() == newobj.getClass() *. Since that class is T or a subclass of it, it should be assignable to T.
The code above when, compiled and subjected to type erasure, effectively produces a method that looks like this:
    public Foo getFlaggedBean(Foo fromBean) throws InstantiationException, IllegalAccessException {
        Foo newBean = (Foo) fromBean.getClass().newInstance();
        // do some stuff
        return newBean;
    }Note that the cast to Foo is strictly unnecessary.
There's a couple ways I could solve this, such as:
    public <S extends T> T getFlaggedBean(Class<S> useClass, S fromBean) throws InstantiationException, IllegalAccessException {
        T newBean = useClass.newInstance();
        // do some stuff
        return newBean;
    }I'd rather not change the API, though. Can anybody give me an idea where the initial code, with warnings could be unsafe?
Neil
* Unless you're mucking about with class loaders, but that problem would be an issue with non-generic code too.

Paul,
So does that bit of the JLS mean that my compiler is doing something wrong when it finds the getClass() call, in the code below, to return Class<? extends Foo> rather than Class<? extends T>? If the latter were returned it would compile fine.
public class Bar<T extends Foo> {
    public T getFlaggedBean(T fromBean) throws InstantiationException, IllegalAccessException {
        T newBean = fromBean.getClass().newInstance(); // doesn't compile
        // do some stuff
        return newBean;
}I was initially distracted by the "capture#1-of" and thought that was culprit, but as the code below demonstrates calling getInstance() on an instance of a class the compiler notes as "Class<capture#1-of ? extends Foo>" assigns to Foo just fine. Interestingly in this code my IDE says that getClass() is returning "Class<? extends Foo>", both javac and the IDE spat out "Class<capture#1-of ? extends Foo>" when the 1st line of the method had a warning or error. I assume that "Class<? extends Foo>" and "Class<capture#n-of ? extends Foo>" are equivalent and that "capture#n-of" is something fairly internal to the compiler. Can anyone shed light on that?
public class Bar<T extends Foo> {
    public Foo getFlaggedBean(T fromBean) throws InstantiationException, IllegalAccessException {
        Foo newBean = fromBean.getClass().newInstance(); // this works
        // do some stuff
        return newBean;
}

XML Form Builder Error using JRE Version 1.6.0_05

Hi Experts,
I am trying to create an XML Form using XML Form Builder. But I noticed that the root nodes under the data model area of the said tool is not clickable(even if it has + sign on it)thus hindering me to continue. I encounter this error using jre version 1.6.0_05.
Can someone help with this?
Thanks a lot
Edited by: Leah Mendoza on Oct 9, 2008 2:07 AM
Edited by: Leah Mendoza on Oct 9, 2008 2:07 AM

Hi Leah,
Have you tried double clicking?
If this doesn't solve the issue, you might want to try using a different version of the browser and disable the pop up blocker on your browser.
Please try this out and let me know.
Regards
Mazin

Error in parsing taglib 'customtag' tag in web.xml or .tld file of the tagl

Hi
While execution Portal application, I am getting error," Error in parsing taglib 'customtag' tag in web.xml or .tld file of the taglib library."
Complete stack is
>>#1.5 #005056AE006400690000002000000A440004BA8F3ECB004A#1331024303056#com.sap.portal.prt.runtime#sap.com/irj#com.sap.portal.prt.runtime#M1005000#6994##99593FD6676911E1807500000041A352#99593fd6676911e1807500000041a352-0#99593fd6676911e1807500000041a352#SAPEngine_Application_Thread[impl:3]_31##0#0#Error##Java###02:28_06/03/12_0020_4301650
[EXCEPTION]
#1#com.sapportals.portal.prt.servlets_jsp.server.jsp.ParseException: Error in parsing taglib 'customtag' tag in web.xml or .tld file of the taglib library.
at com.sapportals.portal.prt.servlets_jsp.server.jsp.syntax.JspTaglibDirective.verifyAttributes(JspTaglibDirective.java:189)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.syntax.JspDirective.parse0(JspDirective.java:162)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.syntax.JspDirective.parse(JspDirective.java:117)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.syntax.ElementCollection.parse(ElementCollection.java:86)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.syntax.ParserImpl.parse(ParserImpl.java:595)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.JSPParser.parse(JSPParser.java:2170)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.JSPCompiler.compile(JSPCompiler.java:81)
at com.sapportals.portal.prt.servlets_jsp.server.jsp.JSPCompiler.run(JSPCompiler.java:140)
at com.sapportals.portal.prt.core.broker.JSPComponentItem.compileJSP(JSPComponentItem.java:291)
at com.sapportals.portal.prt.core.broker.JSPComponentItem.getComponentInstance(JSPComponentItem.java:141)
at com.sapportals.portal.prt.core.broker.PortalComponentItemFacade.service(PortalComponentItemFacade.java:355)
at com.sapportals.portal.prt.core.broker.PortalComponentItem.service(PortalComponentItem.java:934)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:435)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:527)
at com.sapportals.portal.prt.component.AbstractComponentResponse.include(AbstractComponentResponse.java:89)
at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:232)
at com.sapportals.portal.htmlb.page.JSPDynPage.doOutput(JSPDynPage.java:76)
at com.sapportals.htmlb.page.PageProcessor.handleRequest(PageProcessor.java:133)
at com.sapportals.portal.htmlb.page.PageProcessorComponent.doContent(PageProcessorComponent.java:134)
at com.sapportals.portal.prt.component.AbstractPortalComponent.doPreview(AbstractPortalComponent.java:240)
at com.sapportals.portal.prt.component.AbstractPortalComponent.serviceDeprecated(AbstractPortalComponent.java:168)
at com.sapportals.portal.prt.component.AbstractPortalComponent.service(AbstractPortalComponent.java:114)
at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
at com.sapportals.portal.prt.component.PortalComponentResponse.include(PortalComponentResponse.java:215)
at com.sapportals.portal.prt.pom.PortalNode.service(PortalNode.java:645)
at com.sapportals.portal.prt.core.PortalRequestManager.callPortalComponent(PortalRequestManager.java:328)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:136)
at com.sapportals.portal.prt.core.PortalRequestManager.dispatchRequest(PortalRequestManager.java:189)
at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:753)
at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:240)
at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:545)
at java.security.AccessController.doPrivileged(Native Method)
at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:434)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)
at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1060)
at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)
at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)
at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)
at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)
at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:104)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:176)
Regards
Pratyush

Hi,
See the following guide and make sure to carefully follow all instructions.
[http://www.sdn.sap.com/irj/scn/go/portal/prtroot/docs/library/uuid/40599e45-8cf9-2910-cbaa-d4cd8e15ff34?QuickLink=index&overridelayout=true&14770392545262]
Regards,
Alex

Error in parsing taglib taglib tag in web.xml or .tld file of the taglib

Hi All,
I have added ResourceBundle.tld file in following path : /PORTAL-INF/taglib/tld/
I have added portalapp.xml file following entry :
<property name="/PORTAL-INF/taglib/tld/ResourceBundle.tld" value="/PORTAL-INF/taglib/tld/ResourceBundle.tld"/>
I have added jsp file following entry :
<%@ taglib uri="/PORTAL-INF/taglib/tld/ResourceBundle.tld" prefix="bundle" %>
I am getting the following the error: Error in parsing taglib taglib tag in web.xml or .tld file of the taglib library
can you tell me where i am giving the wrong.
Regards
Siva

hi rabih,
in jsp..
<%@ taglib uri="tagLib" prefix="bundle" %>
in portalapp.xml
<component-profile>
<property name="tagLib" value="/PORTAL-INF/taglib/tld/ResourceBundle.tld"/>
</component-profile>
it may help u..
regards,
Chinnadurai.R

Error using IO taglib in BEA 8.1

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