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From Bing Li <lbl...@gmail.com>
Subject Re: NoSuchMethodError: ... (LJava/lang/String)
Date Mon, 14 Mar 2011 17:18:53 GMT
Dear Andreas,

After checking my system carefully, I noticed that one package was compiled
by JDK 1.3. After compiling by JDK 1.6, everything is fine.

I appreciate so much for your and other guys' help!

Best,
LB

On Mon, Mar 14, 2011 at 10:48 PM, Andreas Veithen <andreas.veithen@gmail.com
> wrote:

> That is your interpretation. What the stack trace really says is that
> Axis2 successfully invokes your service (namely
> CategorizedHubService#getCategorizedHub), but that there is an issue
> in your service. A NoSuchMethodError (in contrast to
> NoSuchMethodException) usually indicates a problem with the build
> (wrong version of a class packaged into the application) or a class
> loader problem (multiple versions of the same class in classpaths of
> different class loaders).
>
> Andreas
>
> On Mon, Mar 14, 2011 at 15:14, Bing Li <lblabs@gmail.com> wrote:
> > However, it makes my method cannot be invoked!
> >
> > Thanks!
> > LB
> >
> > On Mon, Mar 14, 2011 at 10:12 PM, Andreas Veithen
> > <andreas.veithen@gmail.com> wrote:
> >>
> >> As I said earlier, "Ljava/lang/String;" is simply the name that the
> >> Java Virtual Machine uses internally for the java.lang.String type.
> >> There is really nothing magic here.
> >>
> >> Andreas
> >>
> >> On Mon, Mar 14, 2011 at 15:08, Bing Li <lblabs@gmail.com> wrote:
> >> > In Axis2, no WSDD is required.
> >> >
> >> > POJO is what I am using. At the server, users just need to write OO
> >> > program
> >> > as usual. No particular work is required. I notice that the sample,
> >> > addressbook, in the directory of POJO accompanied with AXIS binary
> >> > package,
> >> > works fine. My case should be the same as that. But the method on the
> >> > server
> >> > is not recognized for my method's parameters is changed from String to
> >> > Ljava/lang/java!
> >> >
> >> > What I am wondering why Ljava/lang/java comes out? I never use it. I
> >> > believe
> >> > a proper design of Web services development system should NOT bother
> >> > users
> >> > with so many underlying techniques.
> >> >
> >> > Thanks,
> >> > LB
> >> >
> >> > On Mon, Mar 14, 2011 at 10:02 PM, <jlmagc@gmail.com> wrote:
> >> >>
> >> >> Well, I'm not expert at all. The exception is in the server side,
> >> >> right?
> >> >> Can you share the wsdd?
> >> >>
> >> >> Sent via BlackBerry from T-Mobile
> >> >>
> >> >> ________________________________
> >> >> From: Bing Li <lblabs@gmail.com>
> >> >> Date: Mon, 14 Mar 2011 21:48:14 +0800
> >> >> To: JOSE L MARTINEZ-AVIAL<jlmagc@gmail.com>
> >> >> ReplyTo: bing.li@asu.edu
> >> >> Cc: <java-user@axis.apache.org>
> >> >> Subject: Re: NoSuchMethodError: ... (LJava/lang/String)
> >> >> Dear Jose,
> >> >>
> >> >> I didn't use WSDL to generate any stud code. What I am currently
> using
> >> >> is
> >> >> POJO. I don't understand why AXIS has such a design on Web services?
> >> >>
> >> >> Thanks,
> >> >> LB
> >> >>
> >> >> On Mon, Mar 14, 2011 at 7:35 PM, JOSE L MARTINEZ-AVIAL
> >> >> <jlmagc@gmail.com>
> >> >> wrote:
> >> >>>
> >> >>> can you provide the WSDL you are using?
> >> >>>
> >> >>> 2011/3/14 Bing Li <lblabs@gmail.com>
> >> >>>>
> >> >>>> Sorry to send the question again. I forgot putting the example
code
> >> >>>> in
> >> >>>> the previous email. The code is as follows. It works fine.
However,
> >> >>>> my code
> >> >>>> does not.
> >> >>>>
> >> >>>> public class AddressBookService {
> >> >>>>
> >> >>>>     private HashMap entries = new HashMap();
> >> >>>>     private MyAddress myaddr = new MyAddress();
> >> >>>>
> >> >>>>     /**
> >> >>>>      * Add an Entry to the Address Book
> >> >>>>      * @param entry
> >> >>>>      */
> >> >>>>     public void addEntry(Entry entry) {
> >> >>>>         this.entries.put(entry.getName(), entry);
> >> >>>>     }
> >> >>>>
> >> >>>>     /**
> >> >>>>      * Search an address of a person
> >> >>>>      *
> >> >>>>      * @param name the name of the person whose address needs
to be
> >> >>>> found
> >> >>>>      * @return return the address entry of the person.
> >> >>>>      */
> >> >>>>     public Entry findEntry(String name) {
> >> >>>>         return myaddr.getAddr(name);
> >> >>>>     }
> >> >>>> }
> >> >>>>
> >> >>>>
> >> >>>> On Mon, Mar 14, 2011 at 2:33 PM, Bing Li <lblabs@gmail.com>
wrote:
> >> >>>>>
> >> >>>>> Dear Martin,
> >> >>>>>
> >> >>>>> I appreciate so much for your help!
> >> >>>>>
> >> >>>>> However, I am still confused about the problem. I tried
one
> example
> >> >>>>> as
> >> >>>>> follows. In this example, a String is sent as a parameter.
And
> then
> >> >>>>> a local
> >> >>>>> method, getAddr(String keyword), of an object, MyAddress,
is
> >> >>>>> invoked. I
> >> >>>>> noticed that it worked fine.
> >> >>>>>
> >> >>>>> My case should be the same as that. What I am wondering
why such a
> >> >>>>> type
> >> >>>>> Ljava/lang/String emerged! I never touched that. Moreover,
even
> >> >>>>> though I
> >> >>>>> changed the String to String[], the problem still exists.
Really
> >> >>>>> don't
> >> >>>>> understand why Web services has such a design.
> >> >>>>>
> >> >>>>> I use POJO to implement my Web services. Could you give
me a hand?
> >> >>>>>
> >> >>>>> Thanks,
> >> >>>>> LB
> >> >>>>>
> >> >>>>> On Mon, Mar 14, 2011 at 9:49 AM, Martin Gainty <
> mgainty@hotmail.com>
> >> >>>>> wrote:
> >> >>>>>>
> >> >>>>>> it seems that you changed your original input or output
message
> to
> >> >>>>>> send array of string to single string or vice versa
> >> >>>>>>
> >> >>>>>> if you see the operation SelectCategoriedHubByKey make
sure your
> >> >>>>>> input
> >> >>>>>> and output messages reference the ArrayOfString typed
element
> here
> >> >>>>>> is an
> >> >>>>>> example
> >> >>>>>>
> >> >>>>>> <?xml version="1.0" encoding="UTF-8"?>
> >> >>>>>> <xsd:schema targetNamespace="http://www.test.org/sample_types"
> >> >>>>>>             xmlns:tns="http://www.test.org/sample_types"
> >> >>>>>>
> >> >>>>>> xmlns:soap-enc="http://www.w3.org/2001/09/soap-encoding"
> >> >>>>>>         xmlns:xsd="http://www.w3.org/2001/XMLSchema">
> >> >>>>>>   <!--
> >> >>>>>>     These will cause errors in generation but are necessary
for
> an
> >> >>>>>> XML
> >> >>>>>> schema validator
> >> >>>>>>     like IBM Schema Quality Checker
> >> >>>>>>     <xsd:import
> >> >>>>>> namespace="http://schemas.xmlsoap.org/soap/encoding/"
> >> >>>>>>
> >> >>>>>> schemaLocation="http://schemas.xmlsoap.org/soap/encoding/"/>
> >> >>>>>>     <xsd:import namespace="
> http://www.w3.org/2001/09/soap-encoding"
> >> >>>>>>
> >> >>>>>> schemaLocation="http://www.w3.org/2001/09/soap-encoding"/>
> >> >>>>>>   -->
> >> >>>>>>   <xsd:complexType name="ArrayOfString">
> >> >>>>>>     <xsd:complexContent>
> >> >>>>>>       <xsd:restriction base="soap-enc:Array">
> >> >>>>>>         <xsd:sequence>
> >> >>>>>>           <xsd:element name="stringElement" type="xsd:string"
> >> >>>>>> minOccurs="0" maxOccurs="unbounded"/>
> >> >>>>>>         </xsd:sequence>
> >> >>>>>>         <xsd:attributeGroup ref="soap-enc:arrayAttributes"/>
> >> >>>>>>         <xsd:attributeGroup ref="soap-enc:commonAttributes"/>
> >> >>>>>>       </xsd:restriction>
> >> >>>>>>     </xsd:complexContent>
> >> >>>>>>   </xsd:complexType>
> >> >>>>>>
> >> >>>>>>   <xsd:element name="strings" type="tns:ArrayOfString"
> >> >>>>>> nillable="true"
> >> >>>>>> minOccurs="1" maxOccurs="1" />
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> >> >>>>>> <!-- you can reference element name 'strings' for
either
> >> >>>>>> InputMessage
> >> >>>>>> or OutputMessage for your SelectCategoriedHubByKey
operation -->
> >> >>>>>>
> >> >>>>>> Martin
> >> >>>>>> ______________________________________________
> >> >>>>>> Verzicht und Vertraulichkeitanmerkung/Note de déni
et de
> >> >>>>>> confidentialité
> >> >>>>>>
> >> >>>>>> Diese Nachricht ist vertraulich. Sollten Sie nicht
der
> vorgesehene
> >> >>>>>> Empfaenger sein, so bitten wir hoeflich um eine Mitteilung.
Jede
> >> >>>>>> unbefugte
> >> >>>>>> Weiterleitung oder Fertigung einer Kopie ist unzulaessig.
Diese
> >> >>>>>> Nachricht
> >> >>>>>> dient lediglich dem Austausch von Informationen und
entfaltet
> keine
> >> >>>>>> rechtliche Bindungswirkung. Aufgrund der leichten
> Manipulierbarkeit
> >> >>>>>> von
> >> >>>>>> E-Mails koennen wir keine Haftung fuer den Inhalt uebernehmen.
> >> >>>>>>
> >> >>>>>> Ce message est confidentiel et peut être privilégié.
Si vous
> n'êtes
> >> >>>>>> pas le destinataire prévu, nous te demandons avec
bonté que pour
> >> >>>>>> satisfaire
> >> >>>>>> informez l'expéditeur. N'importe quelle diffusion
non autorisée
> ou
> >> >>>>>> la copie
> >> >>>>>> de ceci est interdite. Ce message sert à l'information
seulement
> et
> >> >>>>>> n'aura
> >> >>>>>> pas n'importe quel effet légalement obligatoire. Étant
donné que
> >> >>>>>> les email
> >> >>>>>> peuvent facilement être sujets à la manipulation,
nous ne pouvons
> >> >>>>>> accepter
> >> >>>>>> aucune responsabilité pour le contenu fourni.
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> >> >>>>>> ________________________________
> >> >>>>>> Date: Mon, 14 Mar 2011 04:16:07 +0800
> >> >>>>>> Subject: Re: NoSuchMethodError: ... (LJava/lang/String)
> >> >>>>>> From: lblabs@gmail.com
> >> >>>>>> To: java-user@axis.apache.org
> >> >>>>>> CC: andreas.veithen@gmail.com
> >> >>>>>>
> >> >>>>>> Dear Andreas,
> >> >>>>>>
> >> >>>>>> Thanks so much for your reply!
> >> >>>>>>
> >> >>>>>> Could you please tell me how to solve the problem?
> >> >>>>>>
> >> >>>>>> Thanks,
> >> >>>>>> LB
> >> >>>>>>
> >> >>>>>> On Mon, Mar 14, 2011 at 3:41 AM, Andreas Veithen
> >> >>>>>> <andreas.veithen@gmail.com> wrote:
> >> >>>>>>
> >> >>>>>> No, "Ljava/lang/String;" is the type descriptor used
by the JVM
> to
> >> >>>>>> represent java.lang.String. The type descriptor for
String[]
> would
> >> >>>>>> be
> >> >>>>>> "[Ljava/lang/String;".
> >> >>>>>>
> >> >>>>>> Andreas
> >> >>>>>>
> >> >>>>>> On Sun, Mar 13, 2011 at 20:31, JOSE L MARTINEZ-AVIAL
> >> >>>>>> <jlmagc@gmail.com> wrote:
> >> >>>>>> > I think it is trying to invoke a method with a
String[]
> >> >>>>>> > attribute,
> >> >>>>>> > not
> >> >>>>>> > simply a String.
> >> >>>>>> >
> >> >>>>>> > 2011/3/13 Bing Li <lblabs@gmail.com>
> >> >>>>>> >>
> >> >>>>>> >> Dear all,
> >> >>>>>> >>
> >> >>>>>> >> I am a new Axis2 user. Today I got a weird
exception when
> >> >>>>>> >> calling a
> >> >>>>>> >> Web
> >> >>>>>> >> service.
> >> >>>>>> >>
> >> >>>>>> >> This Web service is deployed on Tomcat/Axis2.
I need to
> transmit
> >> >>>>>> >> an
> >> >>>>>> >> object
> >> >>>>>> >> (parameter) to it. The object contains a String
attribute. The
> >> >>>>>> >> object is
> >> >>>>>> >> received correctly. However, when calling
a local method on
> the
> >> >>>>>> >> remote
> >> >>>>>> >> machine, it got the following errors. I noticed
that the
> method
> >> >>>>>> >> SelectCategoriedHubByKey(Ljava/lang/String
key) cannot be
> found
> >> >>>>>> >> on
> >> >>>>>> >> the
> >> >>>>>> >> machine. Actually, the method should be
> >> >>>>>> >> SelectCategoriedHubByKey(String
> >> >>>>>> >> key). Why is the parameter changed from String
to
> >> >>>>>> >> LJava/lang/String? How to
> >> >>>>>> >> solve the problem?
> >> >>>>>> >>
> >> >>>>>> >> Thanks so much!
> >> >>>>>> >> LB
> >> >>>>>> >>
> >> >>>>>> >> [ERROR]
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> com.greatfree.OODB.CategorizedHubDB.SelectCategorizedHubByKey(Ljava/lang/String;)Lcom/greatfree/OODB/CategorizedHub;
> >> >>>>>> >> java.lang.reflect.InvocationTargetException
> >> >>>>>> >>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native
> >> >>>>>> >> Method)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> >> >>>>>> >>         at java.lang.reflect.Method.invoke(Method.java:597)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:194)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:102)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:114)
> >> >>>>>> >>         at
> >> >>>>>> >>
> org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:173)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:173)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:144)
> >> >>>>>> >>         at
> >> >>>>>> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
> >> >>>>>> >>         at
> >> >>>>>> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:306)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:243)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:237)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> >> >>>>>> >>         at java.lang.Thread.run(Thread.java:662)
> >> >>>>>> >> Caused by: java.lang.NoSuchMethodError:
> >> >>>>>> >>
> >> >>>>>> >>
> >> >>>>>> >>
> com.greatfree.OODB.CategorizedHubDB.SelectCategorizedHubByKey(Ljava/lang/String;)Lcom/greatfree/OODB/CategorizedHub;
> >> >>>>>> >>         at
> >> >>>>>> >>
> >> >>>>>> >>
> com.greatfree.HTTP.CategorizedHubService.getCategorizedHub(Unknown
> >> >>>>>> >> Source)
> >> >>>>>> >>         ... 29 more
> >> >>>>>> >>
> >> >>>>>> >
> >> >>>>>> >
> >> >>>>>>
> >> >>>>>>
> >> >>>>>>
> ---------------------------------------------------------------------
> >> >>>>>> To unsubscribe, e-mail: java-user-unsubscribe@axis.apache.org
> >> >>>>>> For additional commands, e-mail: java-user-help@axis.apache.org
> >> >>>>>>
> >> >>>>>>
> >> >>>>>
> >> >>>>
> >> >>>
> >> >>
> >> >
> >> >
> >>
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: java-user-unsubscribe@axis.apache.org
> >> For additional commands, e-mail: java-user-help@axis.apache.org
> >>
> >
> >
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe@axis.apache.org
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>
>

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