Hi,
Today I started seeing this exception when I started solr instance. Any ideas what might be causing this problem? INFO: xsltCacheLifetimeSeconds=5 Aug 13, 2008 9:20:45 AM org.apache.solr.common.SolrException log SEVERE: java.lang.UnsupportedClassVersionError: Bad version number in .class file at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:620) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappCla ssLoader.java:1819) at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader .java:872) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader .java:1327) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader .java:1206) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:242) at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.jav a:239) at org.apache.solr.core.SolrResourceLoader.newInstance(SolrResourceLoader.j ava:260) at org.apache.solr.util.plugin.AbstractPluginLoader.create(AbstractPluginLo ader.java:83) at org.apache.solr.util.plugin.AbstractPluginLoader.load(AbstractPluginLoad er.java:140) at org.apache.solr.core.SolrCore.loadSearchComponents(SolrCore.java:622) at org.apache.solr.core.SolrCore.<init>(SolrCore.java:408) at org.apache.solr.core.MultiCore.create(MultiCore.java:255) at org.apache.solr.core.MultiCore.load(MultiCore.java:139) at org.apache.solr.servlet.SolrDispatchFilter.initMultiCore(SolrDispatchFil ter.java:147) at org.apache.solr.servlet.SolrDispatchFilter.init(SolrDispatchFilter.java: 72) at org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFi lterConfig.java:275) at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(Applicatio nFilterConfig.java:397) at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilte rConfig.java:108) at org.apache.catalina.core.StandardContext.filterStart(StandardContext.jav a:3709) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4356 ) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardHost.start(StandardHost.java:719) at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045) at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443) at org.apache.catalina.startup.Embedded.start(Embedded.java:825) at com.orbitz.container.app.application.EmbeddedTomcat.startTomcat(Embedded Tomcat.java:284) at com.orbitz.container.app.application.EmbeddedTomcat.start(EmbeddedTomcat .java:111) at com.orbitz.container.app.application.WebappStarter$Starter.run(WebappSta rter.java:68) at java.lang.Thread.run(Thread.java:595) Thanks, Raghu