WSO2 API Manager OAuth2TokenValidationService throws null pointer exception - soap

Question

WSO2 API Manager OAuth2 Token Validation service throws null pointer exception
I am sending validation request to API Manger's OAuth2TokenValidationService service from NodeJS. First validation request works fine. When I send the same validation request again with the same OAuth Token it gives following exception. With CURL same thing happens. What has gone wrong here?
[2014-05-20 02:41:09,792] INFO - CarbonAuthenticationUtil 'admin#carbon.super [-1234]' logged in at [2014-05-20 02:41:09,791+0000]
[2014-05-20 02:41:09,885] ERROR - RPCMessageReceiver Exception occurred while trying to invoke service method validate
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:212)
at org.apache.axis2.rpc.receivers.RPCMessageReceiver.invokeBusinessLogic(RPCMessageReceiver.java:117)
at org.apache.axis2.receivers.AbstractInOutMessageReceiver.invokeBusinessLogic(AbstractInOutMessageReceiver.java:40)
at org.apache.axis2.receivers.AbstractMessageReceiver.receive(AbstractMessageReceiver.java:110)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostRequest(HTTPTransportUtils.java:172)
at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:146)
at org.wso2.carbon.core.transports.CarbonServlet.doPost(CarbonServlet.java:231)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:755)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.service(ServletRegistration.java:61)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:128)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:68)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848)
at org.wso2.carbon.tomcat.ext.servlet.DelegationServlet.service(DelegationServlet.java:68)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.wso2.carbon.tomcat.ext.filter.CharacterSetFilter.doFilter(CharacterSetFilter.java:61)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.wso2.carbon.tomcat.ext.valves.CompositeValve.continueInvocation(CompositeValve.java:178)
at org.wso2.carbon.tomcat.ext.valves.CarbonTomcatValve$1.invoke(CarbonTomcatValve.java:47)
at org.wso2.carbon.webapp.mgt.TenantLazyLoaderValve.invoke(TenantLazyLoaderValve.java:56)
at org.wso2.carbon.tomcat.ext.valves.TomcatValveContainer.invokeValves(TomcatValveContainer.java:47)
at org.wso2.carbon.tomcat.ext.valves.CompositeValve.invoke(CompositeValve.java:141)
at org.wso2.carbon.tomcat.ext.valves.CarbonStuckThreadDetectionValve.invoke(CarbonStuckThreadDetectionValve.java:156)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:936)
at org.wso2.carbon.tomcat.ext.valves.CarbonContextCreatorValve.invoke(CarbonContextCreatorValve.java:52)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1004)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1653)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at org.wso2.carbon.identity.oauth.util.ClaimCacheKey.equals(ClaimCacheKey.java:44)
at java.util.concurrent.ConcurrentHashMap.containsKey(ConcurrentHashMap.java:1024)
at org.wso2.carbon.caching.impl.CacheImpl.containsKey(CacheImpl.java:260)
at org.wso2.carbon.identity.oauth.cache.BaseCache.getValueFromCache(BaseCache.java:78)
at org.wso2.carbon.identity.oauth.util.ClaimCache.getValueFromCache(ClaimCache.java:49)
at org.wso2.carbon.identity.oauth2.authcontext.JWTTokenGenerator.generateToken(JWTTokenGenerator.java:198)
at org.wso2.carbon.identity.oauth2.validators.TokenValidationHandler.validate(TokenValidationHandler.java:230)
at org.wso2.carbon.identity.oauth2.OAuth2TokenValidationService.validate(OAuth2TokenValidationService.java:46)
... 45 more
I am sending this as the SOAP request,
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns1="http://org.apache.axis2/xsd"
xmlns:tns="http://oauth2.identity.carbon.wso2.org"
xmlns:ax2326="http://dto.oauth2.identity.carbon.wso2.org/xsd" xmlns:ns="http://org.apache.axis2/xsd"
xmlns:ax2327="http://dto.oauth2.identity.carbon.wso2.org/xsd">
<soap:Header></soap:Header>
<soap:Body>
<ns1:validate>
<ns1:validationReqDTO>
<ax2326:accessToken>
<ax2326:identifier>c3b2558b28f90172588b569ce62f031</ax2326:identifier>
<ax2326:tokenType>bearer</ax2326:tokenType>
</ax2326:accessToken>
</ns1:validationReqDTO>
</ns1:validate>
</soap:Body>
</soap:Envelope>
Also I have enabled,
<AuthorizationContextTokenGeneration>
<Enabled>true</Enabled>
<TokenGeneratorImplClass>org.wso2.carbon.identity.oauth2.authcontext.JWTTokenGenerator</TokenGeneratorImplClass>
<ClaimsRetrieverImplClass>org.wso2.carbon.identity.oauth2.authcontext.DefaultClaimsRetriever</ClaimsRetrieverImplClass>
<ConsumerDialectURI>http://wso2.org/claims</ConsumerDialectURI>
<SignatureAlgorithm>SHA256withRSA</SignatureAlgorithm>
<AuthorizationContextTTL>15</AuthorizationContextTTL>
</AuthorizationContextTokenGeneration>

Answer 1

I had the same problem. When creating a testcase at SoapUI based on the WSDL you will see that there is another node called "context" next to the accessToken node. The problem disappeared when I have added the node.
In your case use:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns1="http://org.apache.axis2/xsd"
xmlns:tns="http://oauth2.identity.carbon.wso2.org"
xmlns:ax2326="http://dto.oauth2.identity.carbon.wso2.org/xsd" xmlns:ns="http://org.apache.axis2/xsd"
xmlns:ax2327="http://dto.oauth2.identity.carbon.wso2.org/xsd">
<soap:Header></soap:Header>
<soap:Body>
<ns1:validate>
<ns1:validationReqDTO>
<ax2326:accessToken>
<ax2326:identifier>c3b2558b28f90172588b569ce62f031</ax2326:identifier>
<ax2326:tokenType>bearer</ax2326:tokenType>
</ax2326:accessToken>
<ax2326:context></ax2326:context>
</ns1:validationReqDTO>
</ns1:validate>
</soap:Body>
</soap:Envelope>