Accumulo translator: NullPointerException on runQuery invocation

org.teiid.jdbc.TeiidSQLException: org.teiid.core.TeiidException
	at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:135)
	at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:71)
	at org.teiid.jdbc.StatementImpl.postReceiveResults(StatementImpl.java:706)
	at org.teiid.jdbc.StatementImpl.access$100(StatementImpl.java:64)
	at org.teiid.jdbc.StatementImpl$2.onCompletion(StatementImpl.java:545)
	at org.teiid.client.util.ResultsFuture.done(ResultsFuture.java:135)
	at org.teiid.client.util.ResultsFuture.access$200(ResultsFuture.java:40)
	at org.teiid.client.util.ResultsFuture$1.receiveResults(ResultsFuture.java:79)
	at org.teiid.net.socket.SocketServerInstanceImpl.receivedMessage(SocketServerInstanceImpl.java:268)
	at org.teiid.net.socket.SocketServerInstanceImpl.read(SocketServerInstanceImpl.java:306)
	at sun.reflect.GeneratedMethodAccessor1.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.teiid.net.socket.SocketServerConnectionFactory$ShutdownHandler.invoke(SocketServerConnectionFactory.java:98)
	at com.sun.proxy.$Proxy6.read(Unknown Source)
	at org.teiid.net.socket.SocketServerInstanceImpl$RemoteInvocationHandler$1.get(SocketServerInstanceImpl.java:405)
	at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:554)
	at org.teiid.jdbc.StatementImpl.execute(StatementImpl.java:1076)
	at org.teiid.jdbc.StatementImpl.execute(StatementImpl.java:323)
	at org.jboss.bqt.framework.AbstractQuery.execute(AbstractQuery.java:208)
	at org.jboss.bqt.client.testcase.ProcessResults.executeTest(ProcessResults.java:280)
	at org.jboss.bqt.client.testcase.ProcessResults.runTestCase(ProcessResults.java:160)
	at org.jboss.bqt.client.TestClient.runScenario(TestClient.java:209)
	at org.jboss.bqt.client.TestClient.runTest(TestClient.java:132)
	at org.jboss.bqt.client.TestClient.runTest(TestClient.java:113)
	at org.jboss.qe.bqt.BQTHelper.startTest(BQTHelper.java:59)
	at org.jboss.dv.test.bqt.Utils.runScenarioTest(Utils.java:197)
	at org.jboss.dv.test.bqt.TestPassFour.test(TestPassFour.java:174)
	at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.testng.internal.MethodInvocationHelper.invokeMethod(MethodInvocationHelper.java:80)
	at org.testng.internal.Invoker.invokeMethod(Invoker.java:714)
	at org.testng.internal.Invoker.invokeTestMethod(Invoker.java:901)
	at org.testng.internal.Invoker.invokeTestMethods(Invoker.java:1231)
	at org.testng.internal.TestMethodWorker.invokeTestMethods(TestMethodWorker.java:127)
	at org.testng.internal.TestMethodWorker.run(TestMethodWorker.java:111)
	at org.testng.TestRunner.privateRun(TestRunner.java:767)
	at org.testng.TestRunner.run(TestRunner.java:617)
	at org.testng.SuiteRunner.runTest(SuiteRunner.java:334)
	at org.testng.SuiteRunner.runSequentially(SuiteRunner.java:329)
	at org.testng.SuiteRunner.privateRun(SuiteRunner.java:291)
	at org.testng.SuiteRunner.run(SuiteRunner.java:240)
	at org.testng.SuiteRunnerWorker.runSuite(SuiteRunnerWorker.java:52)
	at org.testng.SuiteRunnerWorker.run(SuiteRunnerWorker.java:86)
	at org.testng.TestNG.runSuitesSequentially(TestNG.java:1198)
	at org.testng.TestNG.runSuitesLocally(TestNG.java:1123)
	at org.testng.TestNG.run(TestNG.java:1031)
	at org.apache.maven.surefire.testng.TestNGExecutor.run(TestNGExecutor.java:70)
	at org.apache.maven.surefire.testng.TestNGDirectoryTestSuite.execute(TestNGDirectoryTestSuite.java:108)
	at org.apache.maven.surefire.testng.TestNGProvider.invoke(TestNGProvider.java:111)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:164)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:110)
	at org.apache.maven.surefire.booter.SurefireStarter.invokeProvider(SurefireStarter.java:172)
	at org.apache.maven.surefire.booter.SurefireStarter.runSuitesInProcessWhenForked(SurefireStarter.java:104)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:70)
Caused by: org.teiid.core.TeiidException
	at org.teiid.client.ResultsMessage.setException(ResultsMessage.java:196)
	at org.teiid.dqp.internal.process.RequestWorkItem.sendError(RequestWorkItem.java:1084)
	at org.teiid.dqp.internal.process.RequestWorkItem.close(RequestWorkItem.java:576)
	at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:374)
	at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:51)
	at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:274)
	at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:276)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:119)
	at org.teiid.dqp.internal.process.ThreadReuseExecutor$3.run(ThreadReuseExecutor.java:210)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.NullPointerException
	at org.apache.accumulo.core.client.impl.Namespaces.getMap(Namespaces.java:98)
	at org.apache.accumulo.core.client.impl.Namespaces.getNameToIdMap(Namespaces.java:131)
	at org.apache.accumulo.core.client.impl.Tables._getTableId(Tables.java:183)
	at org.apache.accumulo.core.client.impl.Tables.getTableId(Tables.java:169)
	at org.apache.accumulo.core.client.impl.ConnectorImpl.getTableId(ConnectorImpl.java:80)
	at org.apache.accumulo.core.client.impl.ConnectorImpl.createScanner(ConnectorImpl.java:147)
	at org.teiid.translator.accumulo.AccumuloQueryExecution.runQuery(AccumuloQueryExecution.java:99)
	at org.teiid.translator.accumulo.AccumuloQueryExecution.execute(AccumuloQueryExecution.java:84)
	at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:359)
	at sun.reflect.GeneratedMethodAccessor418.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:211)
	at com.sun.proxy.$Proxy159.execute(Unknown Source)
	at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:306)
	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:112)
	at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:65)
	... 6 more