WSO2 Carbon ClassLoader seems to load the wrong OpenCMIS Authenticator - classloader

Question

First the positive part:
I am trying to connect to Alfresco using OpenCMIS, and this works, when running the Java code directly :)
Now the negative:
However, when trying to run the Java code from WSO2 Carbon, there seems to be a classloader problem and the wrong Authenticator class gets loaded.
I am currently using the OpenCMIS 0.10.0 version, although I've also tried with 0.11.0 and 0.12.0 (the most recent) versions.
This is the error in ws02carbon.log:
ERROR - Authentication provider does not implement AuthenticationProvider! {org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver}
java.lang.IllegalArgumentException: Authentication provider does not implement AuthenticationProvider!
at org.apache.chemistry.opencmis.client.bindings.impl.CmisBindingImpl.<init (CmisBindingImpl.java:101)
at org.apache.chemistry.opencmis.client.bindings.CmisBindingFactory.createCmisAtomPubBinding(CmisBindingFactory.java:138)
at org.apache.chemistry.opencmis.client.runtime.CmisBindingHelper.createAtomPubBinding(CmisBindingHelper.java:97)
at org.apache.chemistry.opencmis.client.runtime.CmisBindingHelper.createBinding(CmisBindingHelper.java:55)
at org.apache.chemistry.opencmis.client.runtime.SessionFactoryImpl.getRepositories(SessionFactoryImpl.java:107)
at org.apache.chemistry.opencmis.client.runtime.SessionFactoryImpl.getRepositories(SessionFactoryImpl.java:96)
at nl.rem.test.cmis.CmisTestClient.test(CmisTestClient.java:52)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.apache.axis2.rpc.receivers.RPCUtil.invokeServiceClass(RPCUtil.java:178)
at org.apache.axis2.rpc.receivers.RPCInOnlyMessageReceiver.invokeBusinessLogic(RPCInOnlyMessageReceiver.java:66)
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.helper.FilterServletAdaptor$FilterChainImpl.doFilter(FilterServletAdaptor.java:56)
at org.wso2.carbon.mashup.jsservices.custom.ui.CustomUIServletFilter.doFilter(CustomUIServletFilter.java:233)
at org.eclipse.equinox.http.helper.FilterServletAdaptor.service(FilterServletAdaptor.java:37)
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.statistics.webapp.RequestIntercepterValve.invoke(RequestIntercepterValve.java:43)
at org.wso2.carbon.bam.webapp.stat.publisher.WebAppStatisticPublisherValve.invoke(WebAppStatisticPublisherValve.java:104)
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$SocketProcessor.run(NioEndpoint.java:1653)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
This is the code:
public class CmisTestClient {
public static final String ALFRESCO_ATOMPUB_URL = "http://cmis.alfresco.com/cmisatom";
private static final String ALFRESCO_USER = "admin";
private static final String ALFRESCO_PASSWORD = "admin";
public static void main(String[] args) {
test();
}
public static void test() {
Map<String, String> parameters = new HashMap<String, String>();
SessionFactory sessionFactory = SessionFactoryImpl.newInstance();
// User credentials.
parameters.put(SessionParameter.USER, ALFRESCO_USER);
parameters.put(SessionParameter.PASSWORD, ALFRESCO_PASSWORD);
// AtomPub Connection settings...
parameters.put(SessionParameter.ATOMPUB_URL, ALFRESCO_ATOMPUB_URL);
parameters.put(SessionParameter.BINDING_TYPE, BindingType.ATOMPUB.value());
//parameters.put(SessionParameter.AUTHENTICATION_PROVIDER_CLASS, CmisBindingFactory.STANDARD_AUTHENTICATION_PROVIDER); // = the default
parameters.put(SessionParameter.AUTH_HTTP_BASIC, "true" );
parameters.put(SessionParameter.COOKIES, "true" );
// Alfresco only provides ONE repository.
Repository repository = sessionFactory.getRepositories(parameters).get(0);
Session session = repository.createSession();
}
}
I am really lost how to fix it, I've tried (including restarting the webserver):
moving the OpenCMIS jars to:
-[WSO2 Carbon Home]\5.2.1\lib
-[WSO2 Carbon Home]\5.2.1\repository\lib
-[WSO2 Carbon Home]\5.2.1\repository\components\lib
-[WSO2 Carbon Home]\5.2.1\repository\components\extensions
including the OpenCMIS jars directly in the .aar file, with EnableChildFirstClassLoading=true (also tried with false)
Please help! It's not the first time there has been a problem when using third party libraries from within WSO2 Carbon and I'd like to understand what mistakes I am making :)

Answer 1

OK, I found a fix for the problem, though this solution is far from ideal:
Placing the jar files inside:
-[WSO2 Carbon Home]\5.2.1\repository\deployment\server\lib
USING THE ADMIN CONSOLE (vertical tab "Configure" on the left, and then "Repositories - Carbon" and "server - lib - +add dependencies")
By the way, thanks for the edit on the previous question Mardoz! :)