config-pusher error in messaging4transport when install odl-integration-compatible-with-all

There is something odd about this issue, as I don't see it happening in upstream CSIT jobs
that enable this same feature set. However, it happens for me across multiple systems (fedora21
laptop, centos7 openstack VM, EL7 bare metal server) so filing this bug.

simple steps for me to reproduce:

1)

opendaylight-user@root>repo-add mvn:org.opendaylight.integration/features-integration-test/0.4.0-SNAPSHOT/xml/features
Adding feature url mvn:org.opendaylight.integration/features-integration-test/0.4.0-SNAPSHOT/xml/features

2)
opendaylight-user@root>feature:install odl-integration-compatible-with-all
line 93:0 extraneous input '}' expecting

{<EOF>, SEP}
line 124:13 extraneous input ',' expecting {'}', SEP, IDENTIFIER}
line 93:0 extraneous input '}' expecting {<EOF>, SEP}

line 124:13 extraneous input ',' expecting

{'}', SEP, IDENTIFIER}
opendaylight-user@root>line 124:13 extraneous input ',' expecting {'}

', SEP, IDENTIFIER}
Exception in thread "config-pusher" java.lang.IllegalStateException: Error - getInstance() failed for ModuleIdentifier

{factoryName='messaging4transport', instanceName='messaging4transport-default'} in transaction TransactionIdentifier{name='ConfigTransaction-234-236'}
at org.opendaylight.controller.config.manager.impl.ConfigTransactionControllerImpl.secondPhaseCommit(ConfigTransactionControllerImpl.java:427)
at org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl.secondPhaseCommit(ConfigRegistryImpl.java:280)
at org.opendaylight.controller.config.manager.impl.ConfigRegistryImpl.commitConfig(ConfigRegistryImpl.java:227)
at sun.reflect.GeneratedMethodAccessor52.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.reflect.misc.Trampoline.invoke(MethodUtil.java:71)
at sun.reflect.GeneratedMethodAccessor33.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at sun.reflect.misc.MethodUtil.invoke(MethodUtil.java:275)
at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:193)
at com.sun.jmx.mbeanserver.ConvertingMethod.invokeWithOpenReturn(ConvertingMethod.java:175)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:117)
at com.sun.jmx.mbeanserver.MXBeanIntrospector.invokeM2(MXBeanIntrospector.java:54)
at com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:237)
at com.sun.jmx.mbeanserver.PerInterface.invoke(PerInterface.java:138)
at com.sun.jmx.mbeanserver.MBeanSupport.invoke(MBeanSupport.java:252)
at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
at com.sun.jmx.mbeanserver.MXBeanProxy$InvokeHandler.invoke(MXBeanProxy.java:150)
at com.sun.jmx.mbeanserver.MXBeanProxy.invoke(MXBeanProxy.java:167)
at javax.management.MBeanServerInvocationHandler.invoke(MBeanServerInvocationHandler.java:258)
at com.sun.proxy.$Proxy23.commitConfig(Unknown Source)
at org.opendaylight.controller.config.util.ConfigRegistryJMXClient.commitConfig(ConfigRegistryJMXClient.java:110)
at org.opendaylight.controller.config.facade.xml.transactions.TransactionProvider.commitTransaction(TransactionProvider.java:145)
at org.opendaylight.controller.config.facade.xml.ConfigSubsystemFacade.commitSilentTransaction(ConfigSubsystemFacade.java:138)
at org.opendaylight.controller.config.persist.impl.ConfigPusherImpl.pushConfig(ConfigPusherImpl.java:292)
at org.opendaylight.controller.config.persist.impl.ConfigPusherImpl.pushConfigWithConflictingVersionRetries(ConfigPusherImpl.java:144)
at org.opendaylight.controller.config.persist.impl.ConfigPusherImpl.internalPushConfigs(ConfigPusherImpl.java:114)
at org.opendaylight.controller.config.persist.impl.ConfigPusherImpl.processSingle(ConfigPusherImpl.java:81)
at org.opendaylight.controller.config.persist.impl.ConfigPusherImpl.process(ConfigPusherImpl.java:74)
at org.opendaylight.controller.config.persist.impl.osgi.ConfigPersisterActivator$2.run(ConfigPersisterActivator.java:131)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Error in createInstance - null is not allowed as return value. Module: ModuleIdentifier{factoryName='messaging4transport', instanceName='messaging4transport-default'}

at org.opendaylight.controller.config.spi.AbstractModule.getInstance(AbstractModule.java:83)
at sun.reflect.GeneratedMethodAccessor16.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.opendaylight.controller.config.manager.impl.dependencyresolver.DependencyResolverManager$ModuleInvocationHandler.handleInvocation(DependencyResolverManager.java:150)
at com.google.common.reflect.AbstractInvocationHandler.invoke(AbstractInvocationHandler.java:87)
at com.sun.proxy.$Proxy41.getInstance(Unknown Source)
at org.opendaylight.controller.config.manager.impl.ConfigTransactionControllerImpl.secondPhaseCommit(ConfigTransactionControllerImpl.java:421)
... 33 more