When I put data to datastore , using this ietf-routing-types@2017-02-27.yang(in the attchment), an error occurs :

testWriteLabelRangeAdd(test.org.opendaylight.bier.driver.configuration.te.label.BierTeLabelRangeConfigWriterImplTest) Time elapsed: 4.561 sec <<< ERROR!
java.lang.IllegalStateException: Unable to load codec for class org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.types.rev170227.MplsLabel
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodecForBindingClass(BindingCodecContext.java:306)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodec(BindingCodecContext.java:291)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodecForBindingClass(BindingCodecContext.java:312)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodec(BindingCodecContext.java:291)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodec(BindingCodecContext.java:274)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getLeafNodesUsingReflection(BindingCodecContext.java:262)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getLeafNodes(BindingCodecContext.java:229)
at org.opendaylight.yangtools.binding.data.codec.impl.DataObjectCodecContext.<init>(DataObjectCodecContext.java:79)
at org.opendaylight.yangtools.binding.data.codec.impl.ListNodeCodecContext.<init>(ListNodeCodecContext.java:22)
at org.opendaylight.yangtools.binding.data.codec.impl.KeyedListNodeCodecContext.<init>(KeyedListNodeCodecContext.java:29)
at org.opendaylight.yangtools.binding.data.codec.impl.DataContainerCodecPrototype.createInstance(DataContainerCodecPrototype.java:129)
at org.opendaylight.yangtools.binding.data.codec.impl.DataContainerCodecPrototype.get(DataContainerCodecPrototype.java:112)
at org.opendaylight.yangtools.binding.data.codec.impl.DataObjectCodecContext.bindingPathArgumentChild(DataObjectCodecContext.java:179)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodecContextNode(BindingCodecContext.java:127)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.newWriter(BindingCodecContext.java:104)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingNormalizedNodeCodecRegistry.toNormalizedNode(BindingNormalizedNodeCodecRegistry.java:102)
at org.opendaylight.controller.md.sal.binding.impl.BindingToNormalizedNodeCodec.toNormalizedNode(BindingToNormalizedNodeCodec.java:135)
at org.opendaylight.controller.md.sal.binding.impl.AbstractWriteTransaction.merge(AbstractWriteTransaction.java:53)
at org.opendaylight.bier.driver.common.util.DataWriter.operate(DataWriter.java:94)
at org.opendaylight.bier.driver.NetconfDataOperator.write(NetconfDataOperator.java:75)
at org.opendaylight.bier.driver.configuration.te.label.BierTeLabelRangeConfigWriterImpl.writeBierTeLabelRange(BierTeLabelRangeConfigWriterImpl.java:94)
at test.org.opendaylight.bier.driver.configuration.te.label.BierTeLabelRangeConfigWriterImplTest.testWriteLabelRangeAdd(BierTeLabelRangeConfigWriterImplTest.java:96)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:283)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeWithRerun(JUnit4Provider.java:173)
at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:153)
at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:128)
at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:203)
at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:155)
at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:103)
Caused by: java.lang.NoSuchMethodException: org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.routing.types.rev170227.MplsLabel.getMplsLabelSpecialPurpose()
at java.lang.Class.getMethod(Class.java:1778)
at org.opendaylight.yangtools.binding.data.codec.impl.UnionTypeCodec.lambda$loader$0(UnionTypeCodec.java:33)
at org.opendaylight.yangtools.binding.data.codec.impl.UnionTypeCodec$$Lambda$66/588275830.call(Unknown Source)
at org.opendaylight.yangtools.binding.data.codec.impl.BindingCodecContext.getCodecForBindingClass(BindingCodecContext.java:304)
... 46 more