Failed to read test report file /home/jenkins/workspace/spark-branch-2.1-test-sbt-hadoop-2.7/core/target/test-reports/org.apache.spark.util.collection.ExternalSorterSuite.xml
org.dom4j.DocumentException: Error on line 2 of document file:///home/jenkins/workspace/spark-branch-2.1-test-sbt-hadoop-2.7/core/target/test-reports/org.apache.spark.util.collection.ExternalSorterSuite.xml : Premature end of file. Nested exception: Premature end of file.
	at org.dom4j.io.SAXReader.read(SAXReader.java:482)
	at org.dom4j.io.SAXReader.read(SAXReader.java:264)
	at hudson.tasks.junit.SuiteResult.parse(SuiteResult.java:126)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:302)
	at hudson.tasks.junit.TestResult.parsePossiblyEmpty(TestResult.java:244)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:175)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:154)
	at hudson.tasks.junit.TestResult.<init>(TestResult.java:126)
	at hudson.tasks.junit.JUnitParser$ParseResultCallable.invoke(JUnitParser.java:132)
	at hudson.tasks.junit.JUnitParser$ParseResultCallable.invoke(JUnitParser.java:107)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2719)
	at hudson.remoting.UserRequest.perform(UserRequest.java:120)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:326)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)
Caused by: org.xml.sax.SAXParseException; systemId: file:///home/jenkins/workspace/spark-branch-2.1-test-sbt-hadoop-2.7/core/target/test-reports/org.apache.spark.util.collection.ExternalSorterSuite.xml; lineNumber: 2; columnNumber: 1; Premature end of file.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1019)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:648)
	at org.dom4j.io.SAXReader.read(SAXReader.java:465)
	... 18 more
Nested exception: 
org.xml.sax.SAXParseException; systemId: file:///home/jenkins/workspace/spark-branch-2.1-test-sbt-hadoop-2.7/core/target/test-reports/org.apache.spark.util.collection.ExternalSorterSuite.xml; lineNumber: 2; columnNumber: 1; Premature end of file.
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:198)
	at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:177)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:441)
	at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:368)
	at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1436)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1019)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606)
	at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:648)
	at org.dom4j.io.SAXReader.read(SAXReader.java:465)
	at org.dom4j.io.SAXReader.read(SAXReader.java:264)
	at hudson.tasks.junit.SuiteResult.parse(SuiteResult.java:126)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:302)
	at hudson.tasks.junit.TestResult.parsePossiblyEmpty(TestResult.java:244)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:175)
	at hudson.tasks.junit.TestResult.parse(TestResult.java:154)
	at hudson.tasks.junit.TestResult.<init>(TestResult.java:126)
	at hudson.tasks.junit.JUnitParser$ParseResultCallable.invoke(JUnitParser.java:132)
	at hudson.tasks.junit.JUnitParser$ParseResultCallable.invoke(JUnitParser.java:107)
	at hudson.FilePath$FileCallableWrapper.call(FilePath.java:2719)
	at hudson.remoting.UserRequest.perform(UserRequest.java:120)
	at hudson.remoting.UserRequest.perform(UserRequest.java:48)
	at hudson.remoting.Request$2.run(Request.java:326)
	at hudson.remoting.InterceptingExecutorService$1.call(InterceptingExecutorService.java:68)
	at java.util.concurrent.FutureTask.run(FutureTask.java:262)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
	at java.lang.Thread.run(Thread.java:745)