Error when invoking Rule Engine using Java API

Question

Hi,
I have implemented a Java class which calls the Rule Engine to execute the rules. If I test by setting the value of the input inside a main method and get the output, it is working fine. The ruleset is also invoked and there is no problem. However, when I expose this java class as a web service and invoke the web service, I get the below error. I dont get the error if the .rules file is not present in the loaction mentioned. I get the error when the .rules file is present in the location. Not sure if this is an issue with the java call outs or loading the dictionary.
Error:_
<faultcode>S:Server</faultcode>
<faultstring>oracle/rules/sdk2/exception/SDKException</faultstring>
<ns2:exception xmlns:ns2="http://jax-ws.dev.java.net/" note="To disable this feature, set com.sun.xml.ws.fault.SOAPFaultBuilder.disableCaptureStackTrace system property to false" class="java.lang.NoClassDefFoundError">
<message>oracle/rules/sdk2/exception/SDKException</message>
<ns2:stackTrace>
<ns2:frame line="38" file="ImplementRules.java" method="Query" class="oracle.rules.querystudentcriteria.ImplementRules"/>
<ns2:frame line="native" file="NativeMethodAccessorImpl.java" method="invoke0" class="sun.reflect.NativeMethodAccessorImpl"/>
<ns2:frame line="39" file="NativeMethodAccessorImpl.java" method="invoke" class="sun.reflect.NativeMethodAccessorImpl"/>
<ns2:frame line="25" file="DelegatingMethodAccessorImpl.java" method="invoke" class="sun.reflect.DelegatingMethodAccessorImpl"/>
<ns2:frame line="597" file="Method.java" method="invoke" class="java.lang.reflect.Method"/>
<ns2:frame line="101" file="WLSInstanceResolver.java" method="invoke" class="weblogic.wsee.jaxws.WLSInstanceResolver$WLSInvoker"/>
<ns2:frame line="83" file="WLSInstanceResolver.java" method="invoke" class="weblogic.wsee.jaxws.WLSInstanceResolver$WLSInvoker"/>
<ns2:frame line="152" file="InvokerTube.java" method="invoke" class="com.sun.xml.ws.server.InvokerTube$2"/>
<ns2:frame line="264" file="EndpointMethodHandler.java" method="invoke" class="com.sun.xml.ws.server.sei.EndpointMethodHandler"/>
<ns2:frame line="93" file="SEIInvokerTube.java" method="processRequest" class="com.sun.xml.ws.server.sei.SEIInvokerTube"/>
<ns2:frame line="604" file="Fiber.java" method="__doRun" class="com.sun.xml.ws.api.pipe.Fiber"/>
<ns2:frame line="563" file="Fiber.java" method="_doRun" class="com.sun.xml.ws.api.pipe.Fiber"/>
<ns2:frame line="548" file="Fiber.java" method="doRun" class="com.sun.xml.ws.api.pipe.Fiber"/>
<ns2:frame line="445" file="Fiber.java" method="runSync" class="com.sun.xml.ws.api.pipe.Fiber"/>
<ns2:frame line="275" file="WSEndpointImpl.java" method="process" class="com.sun.xml.ws.server.WSEndpointImpl$2"/>
<ns2:frame line="454" file="HttpAdapter.java" method="handle" class="com.sun.xml.ws.transport.http.HttpAdapter$HttpToolkit"/>
<ns2:frame line="250" file="HttpAdapter.java" method="handle" class="com.sun.xml.ws.transport.http.HttpAdapter"/>
<ns2:frame line="140" file="ServletAdapter.java" method="handle" class="com.sun.xml.ws.transport.http.servlet.ServletAdapter"/>
<ns2:frame line="319" file="HttpServletAdapter.java" method="run" class="weblogic.wsee.jaxws.HttpServletAdapter$AuthorizedInvoke"/>
<ns2:frame line="232" file="HttpServletAdapter.java" method="post" class="weblogic.wsee.jaxws.HttpServletAdapter"/>
<ns2:frame line="310" file="JAXWSServlet.java" method="doPost" class="weblogic.wsee.jaxws.JAXWSServlet"/>
<ns2:frame line="727" file="HttpServlet.java" method="service" class="javax.servlet.http.HttpServlet"/>
<ns2:frame line="87" file="JAXWSServlet.java" method="service" class="weblogic.wsee.jaxws.JAXWSServlet"/>
<ns2:frame line="820" file="HttpServlet.java" method="service" class="javax.servlet.http.HttpServlet"/>
<ns2:frame line="227" file="StubSecurityHelper.java" method="run" class="weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction"/>
<ns2:frame line="125" file="StubSecurityHelper.java" method="invokeServlet" class="weblogic.servlet.internal.StubSecurityHelper"/>
<ns2:frame line="292" file="ServletStubImpl.java" method="execute" class="weblogic.servlet.internal.ServletStubImpl"/>
<ns2:frame line="26" file="TailFilter.java" method="doFilter" class="weblogic.servlet.internal.TailFilter"/>
<ns2:frame line="56" file="FilterChainImpl.java" method="doFilter" class="weblogic.servlet.internal.FilterChainImpl"/>
<ns2:frame line="326" file="DMSServletFilter.java" method="doFilter" class="oracle.dms.wls.DMSServletFilter"/>
<ns2:frame line="56" file="FilterChainImpl.java" method="doFilter" class="weblogic.servlet.internal.FilterChainImpl"/>
<ns2:frame line="3592" file="WebAppServletContext.java" method="run" class="weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction"/>
<ns2:frame line="321" file="AuthenticatedSubject.java" method="doAs" class="weblogic.security.acl.internal.AuthenticatedSubject"/>
<ns2:frame line="121" file="SecurityManager.java" method="runAs" class="weblogic.security.service.SecurityManager"/>
<ns2:frame line="2202" file="WebAppServletContext.java" method="securedExecute" class="weblogic.servlet.internal.WebAppServletContext"/>
<ns2:frame line="2108" file="WebAppServletContext.java" method="execute" class="weblogic.servlet.internal.WebAppServletContext"/>
<ns2:frame line="1432" file="ServletRequestImpl.java" method="run" class="weblogic.servlet.internal.ServletRequestImpl"/>
<ns2:frame line="201" file="ExecuteThread.java" method="execute" class="weblogic.work.ExecuteThread"/>
<ns2:frame line="173" file="ExecuteThread.java" method="run" class="weblogic.work.ExecuteThread"/>
</ns2:stackTrace>
The Java class looks like:
public PersonType Query (PersonType p)
try {
//FileReader reader = new FileReader("/home/orasoa/223345/STRS1.rules");
//FileReader reader = new FileReader("D:\\Arun\\NGCE_WS\\POC1\\UHG\\QueryStudentCriteria\\oracle\\rules\\querystudentcriteria\\STRS1.rules");
InputStream stream=ImplementRules.class.getResourceAsStream("/STRS1.rules");
Reader reader=new InputStreamReader(stream);
RuleDictionary dict = RuleDictionary.readDictionary(reader, new DecisionPointDictionaryFinder(null));
List<SDKWarning> warnings = new ArrayList<SDKWarning>();
dict.update(warnings);
DecisionPoint decisionPoint = new DecisionPointBuilder().with("STRS1_DecisionService_1").with(dict).build();
DecisionPointInstance point = decisionPoint.getInstance();
ArrayList input=new ArrayList();
input.add(p);
point.setInputs(input);
List<Object> output=point.invoke();
catch (Exception e) {}
return p;
Cheers,
- AR

Answer 1

Hi, I am getting a similar error when I deploy my application on the weblogic server.
Could you detail how this was resolved?
Thanks,
SB