java.lang.RuntimeException: RemoteDevice{}: readOperationalData failed

The module exists on the netconf node and the yang file for that is successfully parsed and seen as available capabilities in netconf operational tree

HTTP ERROR 500

Problem accessing /restconf/config/network-topology:network-topology/topology/topology-netconf/node/vyatta-4.1/yang-ext:mount/vyatta-security-v1:security/. Reason:

Server Error

Caused by:

java.lang.RuntimeException: RemoteDevice

: readOperationalData failed
at org.opendaylight.netconf.sal.connect.netconf.sal.tx.ReadOnlyTx.readWithTimeout(ReadOnlyTx.java:170)
at org.opendaylight.netconf.sal.connect.netconf.sal.tx.ReadOnlyTx.readConfigurationData(ReadOnlyTx.java:87)
at org.opendaylight.netconf.sal.connect.netconf.sal.tx.ReadOnlyTx.read(ReadOnlyTx.java:139)
at org.opendaylight.netconf.sal.restconf.impl.BrokerFacade.readDataViaTransaction(BrokerFacade.java:194)
at org.opendaylight.netconf.sal.restconf.impl.BrokerFacade.readConfigurationData(BrokerFacade.java:87)
at org.opendaylight.netconf.sal.restconf.impl.RestconfImpl.readConfigurationData(RestconfImpl.java:663)
at org.opendaylight.netconf.sal.restconf.impl.StatisticsRestconfServiceWrapper.readConfigurationData(StatisticsRestconfServiceWrapper.java:95)
at org.opendaylight.netconf.sal.rest.impl.RestconfCompositeWrapper.readConfigurationData(RestconfCompositeWrapper.java:72)
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 com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.ResourceObjectRule.accept(ResourceObjectRule.java:100)
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511)
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391)
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381)
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538)
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:668)