Re: Unknown Error From JSON-Plugin
Could you share the code of the offending class/interface? Also, is the deployed code being compiled on a Java version that <= to server’s Java version? > On Jan 2, 2018, at 9:06 AM, sreekanthwrote: > > 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) > > > > -- > Sent from: http://struts.1045723.n5.nabble.com/Struts-User-f3426046.html > > - > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Unknown Error From JSON-Plugin
On 1/3/2018 10:47 AM, sreekanth wrote: > I have a view page for displaying some already persisted data, this page most > of the time loads without any error (with the same set of data) and rarely > throws the exception which i have shared here. 75% time i've experienced > this exception when there is class reload happens (as a part of hot > deployment) OK, let's see what news here and finish it :) Could you please add following conf to your current conf ... package me.zamani.yasser.ww_convention.actions; import org.apache.struts2.json.JSONWriter; import java.lang.reflect.Field; import java.lang.reflect.Modifier; public class ReflectionAction { private String result; public String getResult() { return result; } public String execute(){ try { Field f = JSONWriter.class.getDeclaredField("ENUM_AS_BEAN_DEFAULT"); result = Modifier.toString(f.getModifiers()); } catch (NoSuchFieldException e) { result = e.getMessage(); } return "success"; } } <%@ page contentType="text/html; charset=UTF-8" %> <%@ taglib prefix="s" uri="/struts-tags" %> hello WEB-INF/content/reflection-success.jsp Then when this issue occurred, browse http://yourIp:yourPort/yourContextPath/reflection and tell me what you see, please?
Re: Unknown Error From JSON-Plugin
I have a view page for displaying some already persisted data, this page most of the time loads without any error (with the same set of data) and rarely throws the exception which i have shared here. 75% time i've experienced this exception when there is class reload happens (as a part of hot deployment) -- Sent from: http://struts.1045723.n5.nabble.com/Struts-User-f3426046.html - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Unknown Error From JSON-Plugin
On 1/3/2018 9:58 AM, Yasser Zamani wrote: > > > On 1/2/2018 10:31 PM, Yasser Zamani wrote: >> >> >> On 1/2/2018 9:26 PM, Yasser Zamani wrote: >>> Illegal field modifiers in class >>> org/apache/struts2/json/JSONWriter: 0xA >> >> I'm confused :( 0xA means `JVM_ACC_PRIVATE | JVM_ACC_STATIC` but the >> fields in an interface are implicitly public static final i.e. >> org/apache/struts2/json/JSONWriter.ENUM_AS_BEAN_DEFAULT implicitly is >> public static final. I have no idea while your compiler sees it as >> private static! > > and I see you say it happens rarely; This makes it even more confusing :S May I know what did you mean by `rarely`? You have some json actions which being called rarely but always fail when called? Or when a specific json action being called, a few of calls fail rarely? - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Unknown Error From JSON-Plugin
That's why i have given the title as Unknow error , the one possible cause i can think of is, i experienced mostly when i'm doing hot deployment to some service classes (but that class is nowhere referenced in the struts2 Action class ) -- Sent from: http://struts.1045723.n5.nabble.com/Struts-User-f3426046.html - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org From user-return-218744-archive=jab@struts.apache.org Tue Jan 02 22:51:07 2018 Return-path:
Re: Unknown Error From JSON-Plugin
On 1/2/2018 10:31 PM, Yasser Zamani wrote: > > > On 1/2/2018 9:26 PM, Yasser Zamani wrote: >> Illegal field modifiers in class >> org/apache/struts2/json/JSONWriter: 0xA > > I'm confused :( 0xA means `JVM_ACC_PRIVATE | JVM_ACC_STATIC` but the > fields in an interface are implicitly public static final i.e. > org/apache/struts2/json/JSONWriter.ENUM_AS_BEAN_DEFAULT implicitly is > public static final. I have no idea while your compiler sees it as > private static! and I see you say it happens rarely; This makes it even more confusing :S - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Unknown Error From JSON-Plugin
On 1/2/2018 9:26 PM, Yasser Zamani wrote: > Illegal field modifiers in class > org/apache/struts2/json/JSONWriter: 0xA I'm confused :( 0xA means `JVM_ACC_PRIVATE | JVM_ACC_STATIC` but the fields in an interface are implicitly public static final i.e. org/apache/struts2/json/JSONWriter.ENUM_AS_BEAN_DEFAULT implicitly is public static final. I have no idea while your compiler sees it as private static!
Re: Unknown Error From JSON-Plugin
I'm already using the latest of JDK 8 :- jdk1.8.0_152 (Linux) -- Sent from: http://struts.1045723.n5.nabble.com/Struts-User-f3426046.html - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
Re: Unknown Error From JSON-Plugin
On 1/2/2018 8:36 PM, sreekanth wrote: > 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 It seems a jdk bug according to [1]. Could you try an update and see if disappears. [1] https://bugs.openjdk.java.net/browse/JDK-8025141
Unknown Error From JSON-Plugin
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) -- Sent from: http://struts.1045723.n5.nabble.com/Struts-User-f3426046.html - To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org