Spurious buffer leak error in the test-suite (HttpClientTestCase.testReadTimeout)

Error:  Tests run: 6, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 22.194 s <<< FAILURE! - in io.undertow.client.http.HttpClientTestCase
Error:  testReadTimeout[proxy](io.undertow.client.http.HttpClientTestCase)  Time elapsed: 20.865 s  <<< ERROR!
java.lang.RuntimeException: Buffer Leak io.undertow.client.http.HttpClientTestCase.testReadTimeout[proxy]
	at io.undertow.testutils.DefaultServer$1.testFinished(DefaultServer.java:403)
	at org.junit.runner.notification.SynchronizedRunListener.testFinished(SynchronizedRunListener.java:87)
	at org.junit.runner.notification.RunNotifier$9.notifyListener(RunNotifier.java:225)
	at org.junit.runner.notification.RunNotifier$SafeNotifier.run(RunNotifier.java:72)
	at org.junit.runner.notification.RunNotifier.fireTestFinished(RunNotifier.java:222)
	at org.junit.internal.runners.model.EachTestNotifier.fireTestFinished(EachTestNotifier.java:38)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:372)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at io.undertow.testutils.DefaultServer.runChild(DefaultServer.java:697)
	at io.undertow.testutils.DefaultServer.runChild(DefaultServer.java:145)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at io.undertow.testutils.RunDefaultServer.evaluate(RunDefaultServer.java:74)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at io.undertow.testutils.DefaultServer.run(DefaultServer.java:377)
	at org.junit.runners.Suite.runChild(Suite.java:128)
	at org.junit.runners.Suite.runChild(Suite.java:27)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:331)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:79)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:329)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:66)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:293)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:413)
	at org.apache.maven.surefire.junitcore.JUnitCore.run(JUnitCore.java:55)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.createRequestAndRun(JUnitCoreWrapper.java:137)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.executeEager(JUnitCoreWrapper.java:107)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:83)
	at org.apache.maven.surefire.junitcore.JUnitCoreWrapper.execute(JUnitCoreWrapper.java:75)
	at org.apache.maven.surefire.junitcore.JUnitCoreProvider.invoke(JUnitCoreProvider.java:158)
	at org.apache.maven.surefire.booter.ForkedBooter.invokeProviderInSameClassLoader(ForkedBooter.java:383)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:344)
	at org.apache.maven.surefire.booter.ForkedBooter.execute(ForkedBooter.java:125)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:417)
Caused by: java.lang.RuntimeException: java.nio.DirectByteBuffer[pos=0 lim=8192 cap=8192] NO: 58029 [NO_CONTEXT]
	at io.undertow.testutils.DebuggingSlicePool$DebuggingBuffer.<init>(DebuggingSlicePool.java:84)
	at io.undertow.testutils.DebuggingSlicePool.allocate(DebuggingSlicePool.java:45)
	at io.undertow.client.http.HttpRequestConduit.processWrite(HttpRequestConduit.java:99)
	at io.undertow.client.http.HttpRequestConduit.flush(HttpRequestConduit.java:635)
	at io.undertow.conduits.AbstractFixedLengthStreamSinkConduit.flush(AbstractFixedLengthStreamSinkConduit.java:229)
	at org.xnio.conduits.ConduitStreamSinkChannel.flush(ConduitStreamSinkChannel.java:162)
	at io.undertow.channels.DetachableStreamSinkChannel.flush(DetachableStreamSinkChannel.java:119)
	at io.undertow.client.http.HttpClientTestCase$9.completed(HttpClientTestCase.java:418)
	at io.undertow.client.http.HttpClientTestCase$9.completed(HttpClientTestCase.java:378)
	at io.undertow.client.http.HttpClientExchange.invokeReadReadyCallback(HttpClientExchange.java:212)
	at io.undertow.client.http.HttpClientConnection.initiateRequest(HttpClientConnection.java:433)
	at io.undertow.client.http.HttpClientConnection.exchangeDone(HttpClientConnection.java:525)
	at io.undertow.client.http.HttpClientExchange.terminateResponse(HttpClientExchange.java:106)
	at io.undertow.client.http.HttpClientConnection$2.handleEvent(HttpClientConnection.java:110)
	at io.undertow.client.http.HttpClientConnection$2.handleEvent(HttpClientConnection.java:106)
	at io.undertow.conduits.FixedLengthStreamSourceConduit.invokeFinishListener(FixedLengthStreamSourceConduit.java:365)
	at io.undertow.conduits.FixedLengthStreamSourceConduit.exitShutdownReads(FixedLengthStreamSourceConduit.java:332)
	at io.undertow.conduits.FixedLengthStreamSourceConduit.terminateReads(FixedLengthStreamSourceConduit.java:286)
	at org.xnio.conduits.AbstractSourceConduit.terminateReads(AbstractSourceConduit.java:42)
	at io.undertow.conduits.ReadTimeoutStreamSourceConduit.terminateReads(ReadTimeoutStreamSourceConduit.java:217)
	at org.xnio.conduits.ConduitStreamSourceChannel.shutdownReads(ConduitStreamSourceChannel.java:147)
	at org.xnio.StreamConnection.notifyReadClosed(StreamConnection.java:87)
	at org.xnio.nio.NioSocketStreamConnection.notifyReadClosed(NioSocketStreamConnection.java:150)
	at org.xnio.Connection.close(Connection.java:139)
	at org.xnio.IoUtils.safeClose(IoUtils.java:152)
	at io.undertow.conduits.ReadTimeoutStreamSourceConduit$1.run(ReadTimeoutStreamSourceConduit.java:87)
	at org.xnio.nio.WorkerThread.safeRun(WorkerThread.java:612)
	at org.xnio.nio.WorkerThread.run(WorkerThread.java:479)