Struts 2 documentaion at *
http://struts.apache.org/2.x/docs/building-the-framework-from-source.html*
implies (at the bottom of the page) that only java 1.5 is required. But when
I deploy my app to a tomcat 5.5.27 server using jdk 1.5.0_20, I get the
UnsupportedClassVersionError below. Am I right in believing that this error
is because some struts class file has been compiled with a later java
version?
My webapp uses jar files from struts 2.1.8.1
Tomcat stdout:
Feb 19, 2010 11:32:50 AM org.apache.catalina.core.AprLifecycleListener
lifecycleEvent
INFO: The Apache Tomcat Native library which allows optimal performance in
production environments was not found on the java.library.path: F:\Program
Files\Java\jdk1.5.0_20\bin;.;F:\WINDOWS\system32;F:\WINDOWS;F:\Program
Files\Java\jdk1.5.0_20\jre\bin;F:/Program
Files/Java/jre1.5.0_20/bin/client;F:/Program
Files/Java/jre1.5.0_20/bin;F:\WINDOWS\system32;F:\WINDOWS;F:\WINDOWS\System32\Wbem;F:\Program
Files\Common Files\Roxio Shared\DLLShared\;F:\Program Files\Common
Files\Adobe\AGL;F:\development\thinkmap\apache-ant-1.7.1\bin;F:\development\jdk1.6.0_16\bin;F:\development\mysql\bin;f:\util;F:\Program
Files\QuickTime\QTSystem\;F:\development\sun\sdk\bin;F:\Sun\SDK\bin
Feb 19, 2010 11:32:50 AM org.apache.coyote.http11.Http11BaseProtocol init
INFO: Initializing Coyote HTTP/1.1 on http-9081
Feb 19, 2010 11:32:50 AM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 875 ms
Feb 19, 2010 11:32:50 AM org.apache.catalina.core.StandardService start
INFO: Starting service Catalina
Feb 19, 2010 11:32:50 AM org.apache.catalina.core.StandardEngine start
INFO: Starting Servlet Engine: Apache Tomcat/5.5.27
Feb 19, 2010 11:32:50 AM org.apache.catalina.core.StandardHost start
INFO: XML validation disabled
Feb 19, 2010 11:32:51 AM
com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Parsing configuration file [struts-default.xml]
Feb 19, 2010 11:32:51 AM
com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Unable to locate configuration files of the name struts-plugin.xml,
skipping
Feb 19, 2010 11:32:51 AM
com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Parsing configuration file [struts-plugin.xml]
Feb 19, 2010 11:32:51 AM
com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Parsing configuration file [struts.xml]
Feb 19, 2010 11:32:51 AM
com.opensymphony.xwork2.util.logging.commons.CommonsLogger info
INFO: Loading global messages from global-messages
Feb 19, 2010 11:32:52 AM org.apache.catalina.core.StandardContext
filterStart
SEVERE: Exception starting filter struts2
*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(WebappClassLoader.java:1876)
at
org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:889)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1353)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1232)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2357)
at java.lang.Class.getConstructor0(Class.java:2671)
at java.lang.Class.getConstructor(Class.java:1629)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.verifyAction(XmlConfigurationProvider.java:403)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addAction(XmlConfigurationProvider.java:354)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.addPackage(XmlConfigurationProvider.java:468)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.loadPackages(XmlConfigurationProvider.java:264)
at
org.apache.struts2.config.StrutsXmlConfigurationProvider.loadPackages(StrutsXmlConfigurationProvider.java:111)
at
com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:193)
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:55)
at
org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:374)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:418)
at
org.apache.struts2.dispatcher.ng.InitOperations.initDispatcher(InitOperations.java:69)
at
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.init(StrutsPrepareAndExecuteFilter.java:51)
at
org.apache.catalina.core.ApplicationFilterConfig.getFilter(ApplicationFilterConfig.java:221)
at
org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:302)
at
org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:78)
at
org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:3635)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4222)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at org.apache.catalina.core.StandardHost.start(StandardHost.java:736)
at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)
at
org.apache.catalina.core.StandardService.start(StandardService.java:448)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:700)
at org.apache.catalina.startup.Catalina.start(Catalina.java:552)
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:592)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:295)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:433)
Feb 19, 2010 11:32:52 AM org.apache.catalina.core.StandardContext start
SEVERE: Error filterStart
Feb 19, 2010 11:32:52 AM org.apache.catalina.core.StandardContext start
SEVERE: Context [/marmoset] startup failed due to previous errors
Feb 19, 2010 11:32:52 AM org.apache.coyote.http11.Http11BaseProtocol start
INFO: Starting Coyote HTTP/1.1 on http-9081
Feb 19, 2010 11:32:53 AM org.apache.jk.common.ChannelSocket init
INFO: JK: ajp13 listening on /0.0.0.0:8010
Feb 19, 2010 11:32:53 AM org.apache.jk.server.JkMain start
INFO: Jk running ID=0 time=0/62 config=null
Feb 19, 2010 11:32:53 AM org.apache.catalina.storeconfig.StoreLoader load
INFO: Find registry server-registry.xml at classpath resource
Feb 19, 2010 11:32:53 AM org.apache.catalina.startup.Catalina start
INFO: Server startup in 3094 ms
Thanks,
Bill
