Error with invoking a bean

Hi,
I am getting following excepion:
A Servlet Exception Has Occurred
org.apache.jasper.JasperException: Unable to compile class for JSPE:\e-data\tomcat40\bin\..\work\localhost\examples\jsp\SimpleJSPBean_jsp.java:59: Undefined variable or class name: counter
out.print( counter.getCounter() );
^
1 error
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:277)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:523)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:175)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:187)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
My bean code is as follows:
package test;
import java.io.*;
import javax.servlet.http.*;
import javax.servlet.*;
public class SimpleJSPBean extends HttpServlet
implements Serializable
private long m_counter=0L;
public long getCounter(){
return m_counter;
public void service (HttpServletRequest req, HttpServletResponse res)
throws IOException, ServletException
m_counter++;
& jsp code is :
<html>
<body>
<BEAN name="counter" scope="session"
type="test.SimpleJSPBean" create="yes" introspect="yes'>
</Bean>
You have accessed this page
<%= counter.getCounter() %> times
</body>
</html>
Zulfi.

Its not obligatory for me to use Bean tag. I have modified my JSP:
<html>
<body>
<jsp:useBean id="counter" scope="session" class="test.SimpleJSPBean" /jsp:useBean>
You have accessed this page
<%= counter.getCounter() %> times
</body>
</html>
& bean
stored in
examples\WEB-INF\classes\test directory.
is given below:
package test;
public class SimpleJSPBean {
public int count;
SimpleJSPBean(){
count=0;
public int getCount() {
return count;
public void setCount() {
count=9;
count++;
I am getting following error:
A Servlet Exception Has Occurred
org.apache.jasper.compiler.ParseException: E:\e-data\tomcat40\bin\..\webapps\examples\jsp\SimpleJSPBean.jsp(2,69) Attribute has no value
     at org.apache.jasper.compiler.JspReader.parseAttributeValue(JspReader.java:567)
     at org.apache.jasper.compiler.JspReader.parseTagAttributesBean(JspReader.java:620)
     at org.apache.jasper.compiler.Parser$Bean.accept(Parser.java:642)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1126)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1091)
     at org.apache.jasper.compiler.Parser.parse(Parser.java:1087)
     at org.apache.jasper.compiler.ParserController.parse(ParserController.java:220)
     at org.apache.jasper.compiler.Compiler.compile(Compiler.java:207)
     at org.apache.jasper.servlet.JspServlet.loadJSP(JspServlet.java:523)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.loadIfNecessary(JspServlet.java:175)
     at org.apache.jasper.servlet.JspServlet$JspServletWrapper.service(JspServlet.java:187)
     at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:379)
     at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:453)
     at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:254)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:194)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:255)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:225)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardContext.invoke(StandardContext.java:2252)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:446)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:564)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:163)
     at org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.java:566)
     at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:472)
     at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:943)
     at org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.java:875)
     at org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.java:952)
     at java.lang.Thread.run(Thread.java:484)
Zulfi.

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         at nl.whitehorses.bpel.unit.StartUnitProcess.<init>(StartUnitProcess.java:59)
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         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
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         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
         at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
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         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
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         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
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         ... 2 more
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         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)
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         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
         at com.bea.core.repackaged.springframework.jee.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:37)
         at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
         at com.bea.core.repackaged.springframework.jee.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:50)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
         at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
         at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
         at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
         at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
         at $Proxy251.executeServiceMethod(Unknown Source)
         at oracle.soa.management.internal.ejb.impl.FacadeFinderBean_4vacyo_FacadeFinderBeanImpl.executeServiceMethod(FacadeFinderBean_4vacyo_FacadeFinderBeanImpl.java:1914)
         at oracle.soa.management.internal.ejb.impl.FacadeFinderBean_4vacyo_FacadeFinderBeanImpl_WLSkel.invoke(Unknown Source)
         at weblogic.rmi.internal.BasicServerRef.invoke(BasicServerRef.java:589)
         at weblogic.rmi.internal.BasicServerRef$1.run(BasicServerRef.java:477)
         at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:363)
         at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:147)
         at weblogic.rmi.internal.BasicServerRef.handleRequest(BasicServerRef.java:473)
         at weblogic.rmi.internal.wls.WLSExecuteRequest.run(WLSExecuteRequest.java:118)
         at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
         at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
    Caused by: java.lang.NullPointerException
         at java.util.concurrent.ConcurrentHashMap.get(ConcurrentHashMap.java:768)
         at oracle.integration.platform.blocks.sdox.JavaEntryBindingComponent.invoke(JavaEntryBindingComponent.java:127)
         at oracle.soa.management.internal.ejb.impl.FacadeFinderBeanImpl.executeServiceMethod(FacadeFinderBeanImpl.java:853)
         ... 31 more
    here is the wsdl information
    <wsdl:types>
    −
    <schema>
    <import namespace="http://xmlns.oracle.com/HelloWorld/Helloworld/BPELProcess1" schemaLocation="http://localhost:8001/soa-infra/services/default/Helloworld/bpelprocess1_client_ep?XSD=xsd/BPELProcess1.xsd"/>
    </schema>
    </wsdl:types>
    −
    <wsdl:message name="BPELProcess1RequestMessage">
    <wsdl:part name="payload" element="client:process"/>
    </wsdl:message>
    −
    <wsdl:message name="BPELProcess1ResponseMessage">
    <wsdl:part name="payload" element="client:processResponse"/>
    </wsdl:message>
    −
    <wsdl:portType name="BPELProcess1">
    −
    <wsdl:operation name="process">
    <wsdl:input message="client:BPELProcess1RequestMessage"/>
    <wsdl:output message="client:BPELProcess1ResponseMessage"/>
    </wsdl:operation>
    </wsdl:portType>
    −
    <wsdl:binding name="BPELProcess1Binding" type="client:BPELProcess1">
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http"/>
    −
    <wsdl:operation name="process">
    <soap:operation style="document" soapAction="process"/>
    −
    <wsdl:input>
    <soap:body use="literal" namespace="http://xmlns.oracle.com/HelloWorld/Helloworld/BPELProcess1"/>
    </wsdl:input>
    −
    <wsdl:output>
    <soap:body use="literal" namespace="http://xmlns.oracle.com/HelloWorld/Helloworld/BPELProcess1"/>
    </wsdl:output>
    </wsdl:operation>
    </wsdl:binding>
    and the xsd
    schema attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="http://xmlns.oracle.com/HelloWorld/Helloworld/BPELProcess1">
    −
    <element name="process">
    −
    <complexType>
    −
    <sequence>
    <element name="input" type="string"/>
    </sequence>
    </complexType>
    </element>
    −
    <element name="processResponse">
    −
    <complexType>
    −
    <sequence>
    <element name="result" type="string"/>
    </sequence>
    </complexType>
    </element>
    </schema>
    thanks Edwin

    Can you make sure your helloworld is using adf bindings as mentioned in thread Re: Urgent :: 11g Invoking Composite from Java/From Webservice Proxy

  • Error while invoking bean "finder": Instance not found in datasource

    Hi All
    I am facing Error while trying to execute a BPEL processing using Notification service for sending out mail .
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    ORABPEL-02152
    Instance not found in datasource.
    The process domain was unable to fetch the instance with key "677c0310e56e2b26:26d607:10dca65e80a:-7ffc" from the datasource.
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         at com.evermind.server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:330)
         at com.evermind.server.http.ServletRequestDispatcher.forward(ServletRequestDispatcher.java:222)
         at com.collaxa.cube.fe.DomainFilter.doFilter(DomainFilter.java:152)
         at com.evermind.server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:663)
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  • Error while invoking bean "domain manager": Error deploying BPEL suitcase.

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    Host IP Address     10.18.80.129
    User     weblogic
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    at sun.reflect.GeneratedMethodAccessor844.invoke(Unknown Source)
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    at sun.reflect.GeneratedMethodAccessor843.invoke(Unknown Source)
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    at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
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    Regards,
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    Ok, I got it working now, I found there's an OC4J_Client.zip not just oc4jClient.jar which has to be included in the classpath.
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