Microsoft Office sequencer fails when no thumbnail is extracted

org.modeshape.repository.sequencer.SequencerException: java.lang.IllegalArgumentException: The bytes argument may not be null
	at org.modeshape.repository.sequencer.StreamSequencerAdapter.execute(StreamSequencerAdapter.java:198)
	at org.modeshape.repository.sequencer.SequencingService.processChange(SequencingService.java:498)
	at org.modeshape.repository.sequencer.SequencingService$RepositoryObserver$1.run(SequencingService.java:666)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
	at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.IllegalArgumentException: The bytes argument may not be null
	at org.modeshape.common.util.CheckArg.isNotNull(CheckArg.java:387)
	at org.modeshape.graph.property.basic.InMemoryBinary.<init>(InMemoryBinary.java:49)
	at org.modeshape.graph.property.basic.InMemoryBinaryValueFactory.create(InMemoryBinaryValueFactory.java:50)
	at org.modeshape.graph.property.basic.InMemoryBinaryValueFactory.create(InMemoryBinaryValueFactory.java:38)
	at org.modeshape.sequencer.msoffice.MSOfficeMetadataSequencer.recordMetadata(MSOfficeMetadataSequencer.java:202)
	at org.modeshape.sequencer.msoffice.MSOfficeMetadataSequencer.sequence(MSOfficeMetadataSequencer.java:143)
	at org.modeshape.repository.sequencer.StreamSequencerAdapter.execute(StreamSequencerAdapter.java:180)
	... 5 more

javax.jcr.PathNotFoundException: Unable to find "{}sequenced"; lowest existing path is "/"
	at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:840)
	at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:703)
	at org.modeshape.jcr.JcrSession.getNode(JcrSession.java:96)
	at org.modeshape.test.integration.sequencer.MSOfficeSequencerIntegrationTest.uploadAndAssertSequencedNode(MSOfficeSequencerIntegrationTest.java:92)
	at org.modeshape.test.integration.sequencer.MSOfficeSequencerIntegrationTest.shouldSequenceDoc(MSOfficeSequencerIntegrationTest.java:82)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
	at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:76)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:182)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:62)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
	at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)