Hi,
I'm using struts2-2.5.14.1 in my EAR deployed in wildfly server, rarely
we are getting the following error when i'm accessing struts2 page.
Caused by: Unable to load configuration. - bean -
vfs:/content/my-app.ear/lib/struts2-json-plugin-2.5.14.1.jar/struts-plugin.xml:28:30
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:69)
at
org.apache.struts2.dispatcher.Dispatcher.getContainer(Dispatcher.java:957)
at
org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:463)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:496)
... 107 more
Caused by: Unable to load bean: type:org.apache.struts2.json.JSONWriter
class:org.apache.struts2.json.DefaultJSONWriter - bean -
vfs:/content/my-app.ear/lib/struts2-json-plugin-2.5.14.1.jar/struts-plugin.xml:28:30
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:274)
at
org.apache.struts2.config.StrutsXmlConfigurationProvider.register(StrutsXmlConfigurationProvider.java:95)
at
com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:167)
at
com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
... 110 more
Caused by: java.lang.ClassFormatError: Failed to link
org/apache/struts2/json/DefaultJSONWriter (Module "deployment.my-app.ear"
from Service Module Loader): Failed to link
org/apache/struts2/json/JSONWriter (Module "deployment.my-app.ear" from
Service Module Loader): Illegal field modifiers in class
org/apache/struts2/json/JSONWriter: 0xA
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at
sun.reflect.DelegatingConstructorAccessorImpl.__newInstance(DelegatingConstructorAccessorImpl.java:45)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at
org.jboss.modules.ModuleClassLoader.defineClass(ModuleClassLoader.java:446)
at
org.jboss.modules.ModuleClassLoader.loadClassLocal(ModuleClassLoader.java:274)
at
org.jboss.modules.ModuleClassLoader$1.loadClassLocal(ModuleClassLoader.java:77)
at org.jboss.modules.Module.loadModuleClass(Module.java:713)
at
org.jboss.modules.ModuleClassLoader.findClass(ModuleClassLoader.java:190)
at
org.jboss.modules.ConcurrentClassLoader.performLoadClassUnchecked(ConcurrentClassLoader.java:412)
at
org.jboss.modules.ConcurrentClassLoader.performLoadClass(ConcurrentClassLoader.java:400)
at
org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:116)
at
com.opensymphony.xwork2.util.ClassLoaderUtil.loadClass(ClassLoaderUtil.java:171)
at
com.opensymphony.xwork2.config.providers.XmlConfigurationProvider.register(XmlConfigurationProvider.java:247)
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