netconf-testtool NullPointerException - Looks like another yang breakage

Build netconf from latest master branch.

cd netconf/opendaylight/netconf/tools/netconf-testtool/target
java -Xmx1G -XX:MaxPermSize=256M -jar netconf-testtool-1.0.0-SNAPSHOT-executable.jar --device-count 1

See exception below:

It appears that something has changed in class YangParserListenerImpl such that the "create()" method doesn't set moduleBuilder ... which is causing this Null reference later.

11:02:14.177 [main] ERROR o.o.netconf.test.tool.Main - Unhandled exception
java.lang.NullPointerException: null
at org.opendaylight.netconf.test.tool.ModuleBuilderCapability.getModuleNamespace(ModuleBuilderCapability.java:39) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.ModuleBuilderCapability.getCapabilityUri(ModuleBuilderCapability.java:33) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.DummyMonitoringService$1.apply(DummyMonitoringService.java:45) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.DummyMonitoringService$1.apply(DummyMonitoringService.java:41) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at com.google.common.collect.Iterators$8.transform(Iterators.java:799) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at java.util.AbstractCollection.toArray(AbstractCollection.java:141) ~[na:1.7.0_79]
at java.util.ArrayList.<init>(ArrayList.java:164) ~[na:1.7.0_79]
at com.google.common.collect.Lists.newArrayList(Lists.java:144) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.DummyMonitoringService.<init>(DummyMonitoringService.java:69) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.NetconfDeviceSimulator.createDispatcher(NetconfDeviceSimulator.java:140) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.NetconfDeviceSimulator.start(NetconfDeviceSimulator.java:192) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]
at org.opendaylight.netconf.test.tool.Main.main(Main.java:193) ~[netconf-testtool-1.0.0-SNAPSHOT-executable.jar:na]