I am trying to setup jenkins in eclipse with Tomcat.

I have followed steps from wiki resource for setting up jenkins with eclipse.

But rather than using tomcat sysdeo plugin, I am using the one from sourceforge.net.

The problem is when I start tomcat from eclipse, and try to check jenkins in browser, it crashes!!
It works fine when run from cmd line.

With following error:

at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374)at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:613) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3132) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:852) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:842) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:771) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1140) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:655) at org.apache.commons.jelly.parser.XMLParser.parse(XMLParser.java:350) at org.apache.commons.jelly.JellyContext.compileScript(JellyContext.java:525) ... 117 moreCaused by: org.apache.commons.jelly.util.SAXParseException: Error at (26, 98) of file:/C:/Users/jenkins/core/target/classes/lib/form/submit.jelly : Could not load class: core so taglib instantiation failed at org.apache.commons.jelly.parser.XMLParser.createSAXException(XMLParser.java:1245) at org.apache.commons.jelly.parser.XMLParser.createTag(XMLParser.java:1029) ... 133 moreCaused by: java.lang.ClassNotFoundException: core at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1955) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1798) at org.apache.commons.jelly.parser.XMLParser.createTag(XMLParser.java:1024) ... 133 more
Apr 22, 2019 8:34:13 PM org.apache.commons.jelly.parser.XMLParser createSAXExceptionWARNING: Underlying exception: org.apache.commons.jelly.JellyException: Could not parse Jelly script : file:/C:/Users/jenkins/core/target/classes/lib/form/submit.jellyApr 22, 2019 8:34:13 PM *org.apache.commons.jelly.JellyContext getTagLibrarySEVERE: The tag library object mapped to: jelly:core is not a TagLibrary. Object = org.apache.commons.jelly.tags.core.CoreTagLibrary@7b47a409*Apr 22, 2019 8:34:14 PM org.apache.commons.jelly.parser.XMLParser createSAXExceptionWARNING: Underlying exception: java.lang.ClassNotFoundException: coreApr 22, 2019 8:34:14 PM org.apache.commons.jelly.parser.XMLParser createTagWARNING: Could not create taglib or URI: jelly:core tag name: jellyorg.apache.commons.jelly.util.SAXParseException: Error at (27, 141) of file:/C:/Users/jenkins/core/target/classes/lib/layout/layout.jelly : Could not load class: core so taglib instantiation failed at org.apache.commons.jelly.parser.XMLParser.createSAXException(XMLParser.java:1245) at org.apache.commons.jelly.parser.XMLParser.createTag(XMLParser.java:1029) at org.apache.commons.jelly.parser.XMLParser.startElement(XMLParser.java:638) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:374) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:613) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3132) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:852) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:112) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:842) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:771) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1140) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:655)