I got exception "BUG: Unable to find instantiated choice node in schema" when I tried to add-lsp via restconf API. Please find the xml input in attachment.
The restconf url is:　http://147.128.12.111:8080/restconf/operations/network-topology-pcep:add-lsp

osgi> 2014-09-03 17:45:23.127 PDT [http-bio-8080-exec-7] WARN o.o.y.s.b.g.i.RuntimeGeneratedMappingServiceImpl - Failed to deserialize path InstanceIdentifier

data Node[MutableCompositeNodeTOImpl], qName[input], modify[n/a], children.size = 4 failed
org.opendaylight.yangtools.yang.data.impl.codec.DeserializationException: Data deserialization failed
at org.opendaylight.yangtools.sal.binding.generator.impl.RuntimeGeneratedMappingServiceImpl.dataObjectFromDataDom(RuntimeGeneratedMappingServiceImpl.java:299) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.RuntimeGeneratedMappingServiceImpl.dataObjectFromDataDom(RuntimeGeneratedMappingServiceImpl.java:388) ~[bundlefile:na]
at org.opendaylight.controller.sal.binding.impl.connect.dom.RpcInvocationStrategy.uncheckedInvoke(RpcInvocationStrategy.java:129) [bundlefile:na]
at org.opendaylight.controller.sal.binding.impl.connect.dom.RpcInvocationStrategy.invokeOn(RpcInvocationStrategy.java:152) [bundlefile:na]
at org.opendaylight.controller.sal.binding.impl.connect.dom.DomToBindingRpcForwarder.invokeRpc(DomToBindingRpcForwarder.java:228) [bundlefile:na]
at org.opendaylight.controller.sal.dom.broker.impl.RoutedRpcSelector.invokeRpc(RoutedRpcSelector.java:84) [bundlefile:na]
at org.opendaylight.controller.sal.dom.broker.impl.SchemaAwareRpcBroker.invokeRpc(SchemaAwareRpcBroker.java:181) [bundlefile:na]
at org.opendaylight.controller.sal.dom.broker.BrokerImpl.invokeRpcAsync(BrokerImpl.java:76) [bundlefile:na]
at org.opendaylight.controller.sal.dom.broker.ConsumerContextImpl.rpc(ConsumerContextImpl.java:48) [bundlefile:na]
at org.opendaylight.controller.sal.restconf.impl.BrokerFacade.invokeRpc(BrokerFacade.java:158) [bundlefile:na]
at org.opendaylight.controller.sal.restconf.rpc.impl.BrokerRpcExecutor.invokeRpcUnchecked(BrokerRpcExecutor.java:26) [bundlefile:na]
at org.opendaylight.controller.sal.restconf.rpc.impl.AbstractRpcExecutor.invokeRpc(AbstractRpcExecutor.java:35) [bundlefile:na]
at org.opendaylight.controller.sal.restconf.impl.RestconfImpl.callRpc(RestconfImpl.java:594) [bundlefile:na]
at org.opendaylight.controller.sal.restconf.impl.RestconfImpl.invokeRpc(RestconfImpl.java:440) [bundlefile:na]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.7.0_55]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) ~[na:1.7.0_55]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.7.0_55]
at java.lang.reflect.Method.invoke(Method.java:606) ~[na:1.7.0_55]
at com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.uri.rules.ResourceObjectRule.accept(ResourceObjectRule.java:100) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1511) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1442) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1391) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1381) [jersey-server-1.17.jar:1.17]
at com.sun.jersey.spi.container.servlet.WebComponent.service(WebComponent.java:416) [bundlefile:na]
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:538) [bundlefile:na]
at com.sun.jersey.spi.container.servlet.ServletContainer.service(ServletContainer.java:716) [bundlefile:na]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:848) [bundlefile:na]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) [bundlefile:na]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) [bundlefile:na]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) [bundlefile:na]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) [bundlefile:na]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581) [bundlefile:na]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) [bundlefile:na]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) [bundlefile:na]
at org.opendaylight.controller.filtervalve.cors.FilterValve$1.doFilter(FilterValve.java:53) [bundlefile:na]
at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:440) [bundlefile:na]
at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:179) [bundlefile:na]
at org.opendaylight.controller.filtervalve.cors.model.FilterProcessor$1.doFilter(FilterProcessor.java:61) [bundlefile:na]
at org.opendaylight.controller.filtervalve.cors.model.FilterProcessor.process(FilterProcessor.java:66) [bundlefile:na]
at org.opendaylight.controller.filtervalve.cors.FilterValve.invoke(FilterValve.java:56) [bundlefile:na]
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) [bundlefile:na]
at org.apache.catalina.authenticator.SingleSignOn.invoke(SingleSignOn.java:309) [bundlefile:na]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) [bundlefile:na]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) [bundlefile:na]
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) [bundlefile:na]
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) [bundlefile:na]
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310) [bundlefile:na]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [na:1.7.0_55]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_55]
at java.lang.Thread.run(Thread.java:744) [na:1.7.0_55]
Caused by: java.lang.IllegalStateException: BUG: Unable to find instantiated choice node in schema.
at com.google.common.base.Preconditions.checkState(Preconditions.java:149) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$DispatchChoiceCodecImpl.adaptForPathImpl(LazyGeneratedCodecRegistry.java:989) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$LocationAwareDispatchCodec.adaptForPath(LazyGeneratedCodecRegistry.java:722) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$LocationAwareDispatchCodec.deserialize(LazyGeneratedCodecRegistry.java:642) ~[bundlefile:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.segment.routing._02.rev140506.sr.ero.subobject.Nai$Broker$Codec$DOM.fromDomStatic(Nai$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.segment.routing._02.rev140506.add.lsp.input.arguments.ero.subobject.subobject.type.SrEroType$Broker$Codec$DOM.fromDomStatic(SrEroType$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.segment.routing._02.rev140506.add.lsp.input.arguments.ero.subobject.subobject.type.SrEroType$Broker$Codec$DOM.deserialize(SrEroType$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$ChoiceCaseCodecImpl.deserialize(LazyGeneratedCodecRegistry.java:781) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$DispatchChoiceCodecImpl.deserializeImpl(LazyGeneratedCodecRegistry.java:920) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$LocationAwareDispatchCodec.deserialize(LazyGeneratedCodecRegistry.java:668) ~[bundlefile:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.rsvp.rev130820.basic.explicit.route.subobjects.SubobjectType$Broker$Codec$DOM.fromDomStatic(SubobjectType$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.ero.Subobject$Broker$Codec$DOM.fromDomStatic(Subobject$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.pcep.types.rev131005.explicit.route.object.Ero$Broker$Codec$DOM.fromDomStatic(Ero$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.add.lsp.args.Arguments$Broker$Codec$DOM.fromDomStatic(Arguments$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.AddLspInput$Broker$Codec$DOM.fromDomStatic(AddLspInput$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.topology.pcep.rev131024.AddLspInput$Broker$Codec$DOM.deserialize(AddLspInput$Broker$Codec$DOM.java) ~[na:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.LazyGeneratedCodecRegistry$DataContainerCodecImpl.deserialize(LazyGeneratedCodecRegistry.java:573) ~[bundlefile:na]
at org.opendaylight.yangtools.sal.binding.generator.impl.RuntimeGeneratedMappingServiceImpl.dataObjectFromDataDom(RuntimeGeneratedMappingServiceImpl.java:291) ~[bundlefile:na]
... 56 common frames omitted