Just tried to upgrade to 2.0. Jenkinks log give exceptions on startup & none of my projects display any changes / change logs.

Reverting restores change logs.

Here's a sample stacktrace

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.commons.beanutils.PropertyUtilsBean.invokeMethod(PropertyUtilsBean.java:2155)
at org.apache.commons.beanutils.PropertyUtilsBean.setSimpleProperty(PropertyUtilsBean.java:2141)
at org.apache.commons.beanutils.PropertyUtilsBean.setNestedProperty(PropertyUtilsBean.java:1948)
at org.apache.commons.beanutils.PropertyUtilsBean.setProperty(PropertyUtilsBean.java:2054)
at org.apache.commons.beanutils.BeanUtilsBean.setProperty(BeanUtilsBean.java:1015)
at org.apache.commons.beanutils.BeanUtils.setProperty(BeanUtils.java:456)
at org.apache.commons.digester.BeanPropertySetterRule.end(BeanPropertySetterRule.java:197)
at org.apache.commons.digester.Digester.endElement(Digester.java:1130)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(AbstractSAXParser.java:601)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(XMLDocumentFragment
ScannerImpl.java:1782)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocu
mentFragmentScannerImpl.java:2938)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)
at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentSc
annerImpl.java:511)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:808)
at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)
at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:119)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)
at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)
at org.apache.commons.digester.Digester.parse(Digester.java:1631)
at hudson.scm.CVSChangeLogSet.parse(CVSChangeLogSet.java:113)
at hudson.scm.CVSChangeLogParser.parse(CVSChangeLogParser.java:43)
at hudson.scm.CVSChangeLogParser.parse(CVSChangeLogParser.java:38)
at hudson.model.AbstractBuild.calcChangeSet(AbstractBuild.java:808)
at hudson.model.AbstractBuild.getChangeSet(AbstractBuild.java:782)
at hudson.model.AbstractBuild.hasParticipant(AbstractBuild.java:356)
at hudson.model.User.getBuilds(User.java:390)
at hudson.WebAppMain$2$1.doRun(WebAppMain.java:225)
at hudson.triggers.SafeTimerTask.run(SafeTimerTask.java:54)
at java.util.TimerThread.mainLoop(Timer.java:512)
at java.util.TimerThread.run(Timer.java:462)
Caused by: java.lang.RuntimeException: Invalid date
at hudson.scm.CVSChangeLogSet$CVSChangeLog.setDate(CVSChangeLogSet.java:235)
... 34 more
Caused by: java.text.ParseException: Unparseable date: "2012-02-29"
at java.text.DateFormat.parse(DateFormat.java:337)
at hudson.scm.CVSChangeLogSet$CVSChangeLog.setDate(CVSChangeLogSet.java:232)
... 34 more