Stack trace javax.servlet.ServletException: org.apache.commons.jelly.JellyTagException: jar:file:/var/lib/jenkins/plugins/ec2/WEB-INF/lib/classes.jar!/hudson/plugins/ec2/EC2Computer/configure.jelly:110:85: <st:include> Error setting property 'class', exception - org.apache.commons.beanutils.ConversionException: Error converting from 'String' to 'Class' hudson.plugins.ec2.EC2Tag at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:103) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799) at org.kohsuke.stapler.MetaClass$12.dispatch(MetaClass.java:381) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799) at org.kohsuke.stapler.MetaClass$4.doDispatch(MetaClass.java:201) at org.kohsuke.stapler.NameBasedDispatcher.dispatch(NameBasedDispatcher.java:53) at org.kohsuke.stapler.Stapler.tryInvoke(Stapler.java:685) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:799) at org.kohsuke.stapler.Stapler.invoke(Stapler.java:587) at org.kohsuke.stapler.Stapler.service(Stapler.java:218) at javax.servlet.http.HttpServlet.service(HttpServlet.java:722) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.util.PluginServletFilter$1.doFilter(PluginServletFilter.java:96) at hudson.util.PluginServletFilter.doFilter(PluginServletFilter.java:88) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.security.csrf.CrumbFilter.doFilter(CrumbFilter.java:48) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:84) at hudson.security.UnwrapSecurityExceptionFilter.doFilter(UnwrapSecurityExceptionFilter.java:51) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at jenkins.security.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:117) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at hudson.security.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:114) at hudson.security.ChainedServletFilter$1.doFilter(ChainedServletFilter.java:87) at hudson.security.ChainedServletFilter.doFilter(ChainedServletFilter.java:76) at hudson.security.HudsonFilter.doFilter(HudsonFilter.java:164) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.kohsuke.stapler.compression.CompressionFilter.doFilter(CompressionFilter.java:46) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at hudson.util.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:81) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:581) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1805) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:724) Caused by: org.apache.commons.jelly.JellyTagException: jar:file:/var/lib/jenkins/plugins/ec2/WEB-INF/lib/classes.jar!/hudson/plugins/ec2/EC2Computer/configure.jelly:110:85: <st:include> Error setting property 'class', exception - org.apache.commons.beanutils.ConversionException: Error converting from 'String' to 'Class' hudson.plugins.ec2.EC2Tag at org.apache.commons.jelly.impl.TagScript.handleException(TagScript.java:726) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:281) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.ScopeTag.doTag(ScopeTag.java:37) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$1.run(CoreTagLibrary.java:98) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.CallTagLibScript$1.run(CallTagLibScript.java:98) at org.apache.commons.jelly.tags.define.InvokeBodyTag.doTag(InvokeBodyTag.java:91) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:269) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.kohsuke.stapler.jelly.ReallyStaticTagLibrary$1.run(ReallyStaticTagLibrary.java:99) at org.apache.commons.jelly.impl.ScriptBlock.run(ScriptBlock.java:95) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.CallTagLibScript.run(CallTagLibScript.java:119) at org.apache.commons.jelly.tags.core.CoreTagLibrary$2.run(CoreTagLibrary.java:105) at org.kohsuke.stapler.jelly.JellyViewScript.run(JellyViewScript.java:81) at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:63) at org.kohsuke.stapler.jelly.DefaultScriptInvoker.invokeScript(DefaultScriptInvoker.java:53) at org.kohsuke.stapler.jelly.JellyFacet$1.dispatch(JellyFacet.java:95) ... 54 more Caused by: java.lang.IllegalArgumentException: Error setting property 'class', exception - org.apache.commons.beanutils.ConversionException: Error converting from 'String' to 'Class' hudson.plugins.ec2.EC2Tag at org.apache.commons.beanutils.ConvertingWrapDynaBean.set(ConvertingWrapDynaBean.java:74) at org.apache.commons.jelly.impl.TagScript.run(TagScript.java:265) ... 114 more Caused by: org.apache.commons.beanutils.ConversionException: Error converting from 'String' to 'Class' hudson.plugins.ec2.EC2Tag at org.apache.commons.beanutils.converters.AbstractConverter.handleError(AbstractConverter.java:267) at org.apache.commons.beanutils.converters.AbstractConverter.convert(AbstractConverter.java:164) at org.apache.commons.beanutils.converters.ConverterFacade.convert(ConverterFacade.java:60) at org.apache.commons.beanutils.BeanUtilsBean.convert(BeanUtilsBean.java:1078) at org.apache.commons.beanutils.BeanUtilsBean.copyProperty(BeanUtilsBean.java:437) at org.apache.commons.beanutils.BeanUtils.copyProperty(BeanUtils.java:160) at org.apache.commons.beanutils.ConvertingWrapDynaBean.set(ConvertingWrapDynaBean.java:67) ... 115 more Caused by: java.lang.ClassNotFoundException: hudson.plugins.ec2.EC2Tag at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1701) at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1546) at org.apache.commons.beanutils.converters.ClassConverter.convertToType(ClassConverter.java:100) at org.apache.commons.beanutils.converters.AbstractConverter.convert(AbstractConverter.java:156) ... 120 more