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    Check if you don't have a VPN or something like this messing with your connection. Also, check Jenkins DNS configurations (try to start it with "--dns 8.8.8.8".

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java.net.UnknownHostException: test.org
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java.net.UnknownHostException: TestNG.org
via Google Groups by Sridevi velaga, 2 years ago
java.net.UnknownHostException: TestNG.org
java.net.UnknownHostException: test.org	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:178)	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:157)	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:391)	at java.net.Socket.connect(Socket.java:579)	at java.net.Socket.connect(Socket.java:528)	at sun.net.NetworkClient.doConnect(NetworkClient.java:180)	at sun.net.www.http.HttpClient.openServer(HttpClient.java:378)	at sun.net.www.http.HttpClient.openServer(HttpClient.java:473)	at sun.net.www.http.HttpClient.(HttpClient.java:203)	at sun.net.www.http.HttpClient.New(HttpClient.java:290)	at sun.net.www.http.HttpClient.New(HttpClient.java:306)	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:995)	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:931)	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:849)	at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1299)	at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:632)	at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startEntity(XMLEntityManager.java:1270)	at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.startDTDEntity(XMLEntityManager.java:1237)	at com.sun.org.apache.xerces.internal.impl.XMLDTDScannerImpl.setInputSource(XMLDTDScannerImpl.java:260)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.dispatch(XMLDocumentScannerImpl.java:1153)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$DTDDriver.next(XMLDocumentScannerImpl.java:1049)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:962)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:607)	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:489)	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:835)	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:764)	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:123)	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1210)	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:568)	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:302)	at javax.xml.parsers.SAXParser.parse(SAXParser.java:195)	at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:17)	at org.testng.xml.SuiteXmlParser.parse(SuiteXmlParser.java:10)	at org.testng.xml.Parser.parse(Parser.java:172)	at org.testng.TestNG.initializeSuitesAndJarFile(TestNG.java:311)