After the upgrade to 5.1.27 we get the following exception:
com.sun.xml.stream.xerces.xni.XNIException: XML version "1.1" is not supported, only XML 1.0 is supported.
        at com.sun.xml.stream.StaxErrorReporter.reportError(StaxErrorReporter.java:150)
        at com.sun.xml.stream.XMLScanner.reportFatalError(XMLScanner.java:1394)
        at com.sun.xml.stream.XMLScanner.scanXMLDeclOrTextDecl(XMLScanner.java:453)
        at com.sun.xml.stream.XMLDocumentFragmentScannerImpl.scanXMLDeclOrTextDecl(XMLDocumentFragmentScannerImpl.java:832)
        at com.sun.xml.stream.XMLDocumentScannerImpl$XMLDeclDriver.next(XMLDocumentScannerImpl.java:760)
        at com.sun.xml.stream.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:353)
        at com.sun.xml.stream.XMLReaderImpl.setInputSource(XMLReaderImpl.java:194)
        at com.sun.xml.stream.XMLReaderImpl.<init>(XMLReaderImpl.java:179)
        at com.sun.xml.stream.ZephyrParserFactory.getXMLStreamReaderImpl(ZephyrParserFactory.java:270)
        at com.sun.xml.stream.ZephyrParserFactory.createXMLStreamReader(ZephyrParserFactory.java:161)
        at com.sun.xml.stream.ZephyrParserFactory.createXMLStreamReader(ZephyrParserFactory.java:148)
        at com.sun.xml.stream.ZephyrParserFactory.createXMLEventReader(ZephyrParserFactory.java:98)
        at org.dom4j.io.STAXEventReader.readDocument(STAXEventReader.java:137)
        at org.dom4j.io.STAXEventReader.readDocument(STAXEventReader.java:102)
        at com.pmease.quickbuild.plugin.report.junit.JUnitXMLResourceReader.doRead(JUnitXMLResourceReader.java:64)
        at com.pmease.quickbuild.plugin.report.engine.generator.reader.XMLResourceReader.read(XMLResourceReader.java:39)
        at com.pmease.quickbuild.plugin.report.engine.generator.reader.XMLResourceReader.read(XMLResourceReader.java:21)
        at com.pmease.quickbuild.plugin.report.junit.TestCaseProcessor.processResource(TestCaseProcessor.java:49)
        at com.pmease.quickbuild.plugin.report.engine.generator.AbstractProcessor.doExecute(AbstractProcessor.java:83)
        at com.pmease.quickbuild.plugin.report.engine.generator.GenerateAction.execute(GenerateAction.java:42)
        at com.pmease.quickbuild.plugin.report.engine.generator.AbstractGenerator.doExecute(AbstractGenerator.java:43)
        at com.pmease.quickbuild.plugin.report.engine.generator.GenerateAction.execute(GenerateAction.java:42)
        at com.pmease.quickbuild.plugin.report.engine.generator.DefaultGenerator.generate(DefaultGenerator.java:37)
        at com.pmease.quickbuild.plugin.report.engine.contribution.publisher.AbstractPublisher.doPublish(AbstractPublisher.java:162)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33.CGLIB$doPublish$42(<generated>)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33$$FastClassByCGLIB$$92d1429d.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
        at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:273)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33.doPublish(<generated>)
        at com.pmease.quickbuild.plugin.report.engine.contribution.publisher.AbstractPublisher.run(AbstractPublisher.java:129)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33.CGLIB$run$31(<generated>)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33$$FastClassByCGLIB$$92d1429d.invoke(<generated>)
        at net.sf.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:215)
        at com.pmease.quickbuild.DefaultScriptEngine$Interpolator.intercept(DefaultScriptEngine.java:273)
        at com.pmease.quickbuild.plugin.report.junit.JUnitPublisher$$EnhancerByCGLIB$$615b1d33.run(<generated>)
        at com.pmease.quickbuild.stepsupport.Step.execute(Step.java:539)
        at com.pmease.quickbuild.stepsupport.StepExecutionJob.executeStepAwareJob(StepExecutionJob.java:30)
        at com.pmease.quickbuild.stepsupport.StepAwareJob.executeBuildAwareJob(StepAwareJob.java:45)
        at com.pmease.quickbuild.BuildAwareJob.execute(BuildAwareJob.java:60)
        at com.pmease.quickbuild.grid.GridJob.run(GridJob.java:72)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
        at java.util.concurrent.FutureTask.run(FutureTask.java:262)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
        at java.lang.Thread.run(Thread.java:744)

with version 5.1.22 this worked.