Issues in invoking a web service from a JAVA/BPEL client...

We are trying to invoke a web service from a JAVA/BPEL client using org.apache.soap classes. But everytime we are running into issues of IllegalAccessError or InvalidClassError or IncompatibleClassError based on different jars we are trying to include in our project. Attached is a simple BPEL project which tries to invoke a web service through JAVA embedding (no supporting jars need to be included explicitly). It erros with following trace:
Class org/apache/soap/Envelope violates loader constraints
     Invalid class: org.apache.soap.Envelope
     Loader: soap:10.1.3
     Code-Source: /slot/ems1508/oracle/product/10.1.3.1/OracleAS_1/webservices/lib/soap.jar
     Configuration: <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in /slot/ems1508/oracle/product/10.1.3.1/OracleAS_1/j2ee/home/oc4j.jar
     Dependent class: org.apache.soap.rpc.RPCMessage
     Loader: soap:10.1.3
     Code-Source: /slot/ems1508/oracle/product/10.1.3.1/OracleAS_1/webservices/lib/soap.jar
     Configuration: <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in /slot/ems1508/oracle/product/10.1.3.1/OracleAS_1/j2ee/home/oc4j.jar
Could you please help us out or provide any pointers. Any help would be highly appreciated

Because you weren't told what to get, perhaps you already have it eh?
What you want to read up about is JAX-WS, which is the webservice API bundled by default with your JDK (Java 6 and up). You'll find the wsimport tool in the bin directory of your JDK. I recommend you explore that directory and read up about all the executables you can find there, to be more prepared in the future. Know the tools you work with and all that. Most tools have a manual on this website:
http://www.oracle.com/technetwork/java/javase/tech/index.html
(under tools and utilities). Not wsimport, that is part of the jax-ws documentation. Better you look for jax-ws tutorials using Google, it will be quicker.

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Invoking a web service from a java code

Hello
I created a simple Web service using JDevlper. It contains two methods
1) getInf int () {
return inf;}
2) void setInf (int a) {
inf = a;}
I have deployed it on Oracle Application server. By inserting the address in a browser, I tried both methods and it works correctly.
Here I am looking how to invoke this web service using a java client and use the method setInf (5 ) / * for example * /.
I search but I have not found an answer that works :(. I hope you could help me to solve this problem.
Thank you in advance

Because you weren't told what to get, perhaps you already have it eh?
What you want to read up about is JAX-WS, which is the webservice API bundled by default with your JDK (Java 6 and up). You'll find the wsimport tool in the bin directory of your JDK. I recommend you explore that directory and read up about all the executables you can find there, to be more prepared in the future. Know the tools you work with and all that. Most tools have a manual on this website:
http://www.oracle.com/technetwork/java/javase/tech/index.html
(under tools and utilities). Not wsimport, that is part of the jax-ws documentation. Better you look for jax-ws tutorials using Google, it will be quicker.

Unable to invoke WebLogic 8.1 sp2 web service from a java proxy client...

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Please see the instructions below. If this does not help, please open a case with customer support and tell them it may be related to CR235479
DESCRIPTION:
When a platform domain is created, the admin server can be started without
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Hi ,
I am trying to invoke a web service from soa bpel 11g composite.
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*<fault>*
*<bpelFault>*
*<faultType>0</faultType>*
*<remoteFault>*
*<part name="summary">*
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*<part name="detail">*
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*<part name="code">*
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*</remoteFault>*
*</bpelFault>*
*</fault>*
*<faultType>*
*<message>0</message>*
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So I have gone back to the composite and added the WS policy (oracle/wss_username_token_client_policy) by Right clicking on web service -> Configure WS Policy -> Security -> oracle/wss_username_token_client_policy -> OK.
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Even then I face the same issue. I have looked into the EM console and found the HTTP username and password properties were blank for this Web service even though the WS policy was attached.
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Any pointers on how to solve this issue ??
How can I figure out what is the security policy the web service is using ??
Regards,
Shiva Kiran

Hi,
Can anyone help me with this ??
I guess I am not able to send the authorization credentials via the request to the web service invocation.
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Shiva Kiran

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I do the same thing.
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Ema

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Hi Paul,
This sound familiar, but I cannot at the moment locate a reference to
the issue. I would encourage you to seek the help of our super support
team [1].
Regards,
Bruce
[1]
http://support.bea.com
[email protected]
Paul Merrigan wrote:
>
I'm trying to invoke a secure 8.1 web service from a 6.1 client application and keep getting rejected with the following message:
Security Violation: User: '<anonymous>' has insufficient permission to access EJB:
In the 6.1 client, I've established a WebServiceProxy and set the userName and password to the proper values, but I can't seem to get past the security.
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Thanks

Hello rss,
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Hello rss,
If you want to invoke a web service from a JCD you will have to build the SOAP message using JAX-RPC or AXIS and then programmatically creat an HTTP connection.
Or you can leverage the HTTP(S) eWay and then you only have to build the SOAP message.
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Hi there,
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Thanks

Calling another webservice from within a webservice does not require anything special. The service (say svc1) that calls another service (svc2) will be a web svc client. So you will have to do the same steps for svc1 as you would do for any other web service client

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I have installed Sun Wireless Toolkit 2.5.2 for CDLC and MTJ.
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I found 4 errors when doing so:
First was solved changing the jre to 1.6.
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* Error preverifying class mipaquete.MiServicioService
java/lang/NoClassDefFoundError: javax/xml/ws/Service
* Error preverifying class mipaquete.ObjectFactory
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* Type mipaquete.MiServicioPortProxy$Descriptor Error preverifying class mipaquete.MiServicioPortProxy$Descriptor
VERIFIER ERROR mipaquete/MiServicioPortProxy$Descriptor.getDispatch()Ljavax/xml/ws/Dispatch;:
Illegal type in constant pool
I only started to solve the first one. I assumed that I have to add the right .jar to manifest file (please let me know if I am wrong). I tried to do by adding the textual classpath rt.jar, however I am not able to give it the right path:
C:\Archivos de programa\IBM\SDP\runtimes\base_v7_stub\java\jre\lib\rt.jar (even though I split the too long sentence into two and I include an space at the beginning of the second, I still get an error when saving)
I would appreciate any help
A) to solve the existing problems
or
B) To create a web service client in an EclipseME application through any other method.
Thank-you very much in advance,
Guadalupe
PS Any clue is welcomed!!

Hello rss,
If you want to invoke a web service from a JCD you will have to build the SOAP message using JAX-RPC or AXIS and then programmatically creat an HTTP connection.
Or you can leverage the HTTP(S) eWay and then you only have to build the SOAP message.
Or use eInsight. You can import a WSDL into eInsight and eInsight will offer you a business process Activity to invoke the web service operations defined in the WSDL.

How to invoke a Web Service from PL/SQL with Complex Type as input.

Hello,
I am trying to invoke a web service from PL/SQL using the UTL_DBWS package.
The web service expects a complex type as input (defined below):
<xs:complexType name="MsgType">
<xs:sequence>
<xs:element name="sender" type="xs:string"/>
<xs:element name="messageId" type="xs:string"/>
<xs:element name="messageType" type="xs:string"/>
<xs:element name="dateSent" type="xs:date"/>
</xs:sequence>
</xs:complexType>
How to construct input to this in PL/SQL Procedure?
Has any body tried this before?
An exmaple will be helpful.
Thanks

Dear,
I have read your article, it is useful for me. But I cannot Apply to my case. Please kindly help me. Thank you.
When running, the error occurs:
1:39:31 Execution failed: ORA-20000: soapenv:Server.userException - org.xml.sax.SAXParseException: Attribute name "password" associated with an element type "user" must be followed by the ' = ' character.
My webservice Url: http://abc.com.vn:81/axis/ABC_WS_TEST.jws?wsdl
I make PL/SQL (similiar as your example)
FUNCTION INVOKESENDMT
RETURN VARCHAR2
AS
l_request soap_api.t_request;
l_response soap_api.t_response;
l_return VARCHAR2(32767);
l_url VARCHAR2(32767);
l_namespace VARCHAR2(32767);
l_method VARCHAR2(32767);
l_soap_action VARCHAR2(32767);
l_result_name VARCHAR2(32767);
p_zipcode VARCHAR2(160);
BEGIN
--p_zipcode:='''TEST'' ; ''TEST'';''84912187098'';''84912187098'';''0'';''8118'';''1'';''000001'';''ThuNghiem'';''''';
p_zipcode:='TEST';
-- Set proxy details if no direct net connection.
--UTL_HTTP.set_proxy('myproxy:4480', NULL);
--UTL_HTTP.set_persistent_conn_support(TRUE);
-- Set proxy authentication if necessary.
--soap_api.set_proxy_authentication(p_username => 'TEST',
-- p_password => 'TEST');
l_url := 'http://abc.com.vn:81/axis/ABC_WS_TEST.jws';
l_namespace := 'xmlns="' || l_url || '"';
l_method := 'sendMT';
l_soap_action := l_url || '#sendMT';
l_result_name := 'sendMTResponse';
l_request := soap_api.new_request(p_method => l_method,
p_namespace => l_namespace);
soap_api.add_parameter(p_request => l_request,
p_name => 'user password sender receiver chargedflag servicenumber messagetype messageid textcontent binarycontent',
p_type => 'xsd:string',
p_value => p_zipcode);
l_response := soap_api.invoke(p_request => l_request,
p_url => l_url,
p_action => l_soap_action);
l_return := soap_api.get_return_value(p_response => l_response,
p_name => l_result_name,
p_namespace => l_namespace);
RETURN l_return;
END;

How to invoke a proxy service from a java client

Hi all,
how could I invoke a proxy service from a java client ?
The proxy service type is 'any xml service' with http protocol.
For a proxy with web service type I can export the related WSDL and generate the java client source.
With 'any xml service' there is no associated wsdl and I'm wondering how to do that.
Thanks
ferp

Hi Ferp,
I used ClientGEN to generate client files from WSDL deployed in ALSB. You can also use Axis for client file generation.
You need to know the WSDL URL. Generate Client files from WSDL URL.
Sample ANT Script
<project name="simple-web" default="mytask" basedir=".">
<taskdef name="clientgen" classname="weblogic.wsee.tools.anttasks.ClientGenTask" classpath="C:\bea92\weblogic92\server\lib\weblogic.jar"/>
<target name="mytask" description="Generate web service client">
          <clientgen wsdl="http://<hostname>:<port>/URL?WSDL"
     destDir="src"
     packageName="com.client.mytask"
     classpath="${java.class.path}" />
     </target>
</project>
Use the following JAVA Code,
try {
     ActivationService service = new ActivationService_Impl("http://<hostname>:<port>/url?WSDL");
client = service.getActivationServicePort();
} catch (Exception ex) {
// Handle Exception
client.activateNumber();
Let me know if you need any more information.
Thanks,
Suman.

Problems calling external Web Service from a Java Stored Procedure

I'm using a sample code that I found here about calling external web services from a Java Store Procedure ( Credit Agency Web Service http://www.oracle.com/technology/sample_code/tech/java/jsp/samples/wsclient/Readme.html ) but when I run it ,send this error. I dont know what can I do or what is missing. Please help me. Thanks.
Error: Premature EOF encountered [java.io.EOFException] [SOAPException: faultCode=SOAP-ENV:IOException; msg=Premature EOF encountered; targetException=java.io.EOFException: Premature EOF encountered] at org.apache.soap.SOAPException.(SOAPException.java:77) at oracle.soap.transport.http.OracleSOAPHTTPConnection.send(OracleSOAPHTTPConnection.java:765) at org.apache.soap.rpc.Call.invoke(Call.java:261) at oracle.otnsamples.wsclient.CreditAgencyServiceStub.authorizeCustomer(CreditAgencyServiceStub.java:84) at Products.jspService(Products.jsp:120) at oracle.jsp.runtime.HttpJsp.service(HttpJsp.java:139) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:349) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:509) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:413) at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:795) at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330) at com.evermind.server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:794) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:270) at com.evermind.server.http.HttpRequestHandler.run(HttpRequestHandler.java:112) at com.evermind.util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:192) at java.lang.Thread.run(Thread.java:534)

I'm also facing problem in running the example on the page http://www.oracle.com/technology/sample_code/tech/java/jsp/samples/wsclient/Readme.html
I've Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 and Oracle Application Server 10g (10.1.3). When I executed the following command,
loadjava -thin -user sys/password@localhost:1521:oradb -resolve -synonym -verbose -grant public %OC4J_HOME%/webservices/lib/soap.jar %OC4J_HOME%/lib/dms.jar %OC4J_HOME%/jlib/javax-ssl-1_1.jar %ORACLE_HOME%/lib/servlet.jar %OC4J_HOME%/j2ee/home/lib/mail.jar
... mentioned in step 3 under the "Configuring the Application" section on the above link, the process terminates with the following error
The following operations failed
class oracle/net/www/protocol/https/Handler: resolution
class oracle/net/www/protocol/https/HttpsURLConnection: resolution
class oracle/soap/client/ProviderManagerClient: resolution
class oracle/soap/client/ServiceManagerClient: resolution
class oracle/soap/providers/JavaProvider: resolution
class oracle/soap/providers/ejbprov/EntityEJBProvider: resolution
class oracle/soap/providers/ejbprov/StatefulEJBProvider: resolution
class oracle/soap/providers/ejbprov/StatelessEJBProvider: resolution
class oracle/soap/providers/sp/SpProvider: resolution
class oracle/soap/server/http/SOAPServlet: resolution
class oracle/soap/transport/http/OracleSOAPHTTPConnection$1: resolution
class oracle/soap/transport/http/OracleSOAPHTTPConnection: resolution
class org/apache/soap/messaging/Message: resolution
class org/apache/soap/rpc/Call: resolution
class org/apache/soap/rpc/RPCMessage: resolution
class org/apache/soap/rpc/Response: resolution
class javax/net/DefaultServerSocketFactory: creation (createFailed)
class javax/net/DefaultSocketFactory: creation (createFailed)
class javax/net/ServerSocketFactory: creation (createFailed)
class javax/net/SocketFactory: creation (createFailed)
class javax/net/ssl/DefaultSSLServerSocketFactory: creation (createFailed)
class javax/net/ssl/DefaultSSLSocketFactory: creation (createFailed)
class javax/net/ssl/HandshakeCompletedEvent: creation (createFailed)
class javax/net/ssl/HandshakeCompletedListener: creation (createFailed)
class javax/net/ssl/SSLException: creation (createFailed)
class javax/net/ssl/SSLHandshakeException: creation (createFailed)
class javax/net/ssl/SSLKeyException: creation (createFailed)
class javax/net/ssl/SSLPeerUnverifiedException: creation (createFailed)
class javax/net/ssl/SSLProtocolException: creation (createFailed)
class javax/net/ssl/SSLServerSocket: creation (createFailed)
class javax/net/ssl/SSLServerSocketFactory: creation (createFailed)
class javax/net/ssl/SSLSession: creation (createFailed)
class javax/net/ssl/SSLSessionBindingEvent: creation (createFailed)
class javax/net/ssl/SSLSessionBindingListener: creation (createFailed)
class javax/net/ssl/SSLSessionContext: creation (createFailed)
class javax/net/ssl/SSLSocket: creation (createFailed)
class javax/net/ssl/SSLSocketFactory: creation (createFailed)
class javax/security/cert/Certificate: creation (createFailed)
class javax/security/cert/CertificateEncodingException: creation (createFailed)
class javax/security/cert/CertificateException: creation (createFailed)
class javax/security/cert/CertificateExpiredException: creation (createFailed)
class javax/security/cert/CertificateNotYetValidException: creation (createFailed)
class javax/security/cert/CertificateParsingException: creation (createFailed)
class javax/security/cert/X509Certificate: creation (createFailed)
exiting : Failures occurred during processing
I've checked the path to all the jar files.
I tried to run the command again with system/password instead sys/password but then I got the following stacktrace:
The following operations failed
class oracle/net/www/protocol/https/Handler: resolution
class oracle/net/www/protocol/https/HttpsURLConnection: resolution
class oracle/soap/client/ProviderManagerClient: resolution
class oracle/soap/client/ServiceManagerClient: resolution
class oracle/soap/providers/JavaProvider: resolution
class oracle/soap/providers/ejbprov/EntityEJBProvider: resolution
class oracle/soap/providers/ejbprov/StatefulEJBProvider: resolution
class oracle/soap/providers/ejbprov/StatelessEJBProvider: resolution
class oracle/soap/providers/sp/SpProvider: resolution
class oracle/soap/server/http/SOAPServlet: resolution
class oracle/soap/transport/http/OracleSOAPHTTPConnection$1: resolution
class oracle/soap/transport/http/OracleSOAPHTTPConnection: resolution
class org/apache/soap/messaging/Message: resolution
class org/apache/soap/rpc/Call: resolution
class org/apache/soap/rpc/RPCMessage: resolution
class org/apache/soap/rpc/Response: resolution
exiting : Failures occurred during processing
Thanks in advance for any useful help.
-

Any difference in creating a web service from a java class or session bean?

Hi,
The JDeveloper tutorial at http://www.oracle.com/technology/obe/obe1013jdev/10131/devdepandmanagingws/devdepandmanagingws.htm demonstrates creating a web service from a plain java class. I'm wondering:
- Is it possible to create a web service from a stateless session bean instead of a java class? If so, what's the proper way to do this in JDeveloper? When I tried doing so in JDeveloper 10.1.3.0.4 (SU5) using the J2EE Web Service wizard, the wizard did not list the session bean in the Component To Publish dropdown (it does list any java classes available in the project). I can proceed by manually typing in the name of the session bean. After the wizard completes though, the @Stateless annotation that had been in my session bean class code is removed and replaced by a @WebService annotation. The end result is that it looks like it made no difference whether I had tried to create the web service from a session bean or plain java class as the annotations in the resulting web service code are the same (although if I had started from a session bean, the class for the web service still implements the Local/Remote EJB interface that the session bean originally implemented).
- Assuming it's possible to create a web service from a stateless session bean, is there any advantage/disadvantage creating a web service from a java class vs a stateless session bean? I'm creating the web service from scratch so I also need to either build the java class or stateless session bean the web service would be based on from scratch too.
Thanks for any ideas about this.

Hi,
EJB Session beans (EJB 3.0) are deployed as WebServices by annotating the class with @WebService and the methds with @WebMethod (both tags require you to add the JSR-181 library to your project (available in the JDeveloper list of libraries)). Unlike the J2E WebService, the EJB session bean service is turned into a WebService upon deployment. This means you obtain teh WSDL file after deployment
- Assuming it's possible to create a web service from a stateless session bean, is there any advantage/disadvantage creating a web service from a java class vs a stateless session bean?
The difference is that EJB Session bean based web services are integrated with the J2EE container, which means that they can leverage container services like transaction handling, data sources, security, JMS etc.
Frank

Calling a soap web service from a java desktop application

Hi,
Does anyone know how to call a soap web service from a java desktop application? I've seen examples using Apache Axis, but it sounds like Axis needs to run on a web server and we are trying to avoid that. My initial thought was that, "of course we need a web server", but I'm wondering if there is a way to do this without a web server.
Any help is greatly appreciated.
thank you,
Julie

If you are the consumer you don't need any web server. The web server is only needed in the provider end.
In java 6 there is a built in framework to call web services without the need of third parties (such as apache axis)
take a look at:
https://jax-ws.dev.java.net/guide/Developing_client_application_with_locally_packaged_WSDL.html
http://java.sun.com/webservices/technologies/index.jsp
For the provider end there is also a built in http server to expose web service via HTTP without the need to
use any external web server.
take a look at:
http://java.sun.com/javase/6/docs/api/javax/xml/ws/Endpoint.html

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