ServletOutputStreamTestCase fails with Premature end of chunk coded message body

[INFO] Running io.undertow.servlet.test.streams.ServletOutputStreamSSLTestCase
Error:  Tests run: 8, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 27.326 s <<< FAILURE! - in io.undertow.servlet.test.streams.ServletOutputStreamSSLTestCase
Error:  testAsyncServletOutputStreamWithPreable[proxy][http2](io.undertow.servlet.test.streams.ServletOutputStreamSSLTestCase)  Time elapsed: 5.267 s  <<< ERROR!
java.lang.RuntimeException: test failed with i equal to 8
	at io.undertow.servlet.test.streams.ServletOutputStreamTestCase.testAsyncServletOutputStreamWithPreable(ServletOutputStreamTestCase.java:230)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.base/java.lang.reflect.Method.invoke(Method.java:566)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:306)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:366)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at io.undertow.testutils.DefaultServer.runChild(DefaultServer.java:652)
	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:376)
	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: org.apache.http.ConnectionClosedException: Premature end of chunk coded message body: closing chunk expected
	at org.apache.http.impl.io.ChunkedInputStream.getChunkSize(ChunkedInputStream.java:263)
	at org.apache.http.impl.io.ChunkedInputStream.nextChunk(ChunkedInputStream.java:222)
	at org.apache.http.impl.io.ChunkedInputStream.read(ChunkedInputStream.java:183)
	at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:135)
	at org.apache.http.conn.EofSensorInputStream.read(EofSensorInputStream.java:148)
	at io.undertow.testutils.HttpClientUtils.readResponse(HttpClientUtils.java:67)
	at io.undertow.testutils.HttpClientUtils.readResponse(HttpClientUtils.java:48)
	at io.undertow.testutils.HttpClientUtils.readResponse(HttpClientUtils.java:40)
	at io.undertow.servlet.test.streams.ServletOutputStreamTestCase.runTest(ServletOutputStreamTestCase.java:265)
	at io.undertow.servlet.test.streams.ServletOutputStreamTestCase.testAsyncServletOutputStreamWithPreable(ServletOutputStreamTestCase.java:226)
	... 44 more