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Dispatcher initialization failed - java.lang.NullPointerException

 
Greenhorn
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Hi Guys,
I just started working on Struts2 Frame work, i am getting following error try to help help me to resolve this issue.

I have include following jar files to the lib directory.

commons-fileupload-1.3.2.jar
commons-io-2.4.jar
commons-logging-1.1.3.jar
ognl-3.0.6.jar
struts2-core-2.5.2.jar
xwork-core-2.3.8.jar


INFO: 2016-07-19 14:26:48,326 ERROR [pool-1-thread-4] commons.CommonsLogger (CommonsLogger.java:38) - Dispatcher initialization failed
java.lang.NullPointerException
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:481)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotationArray(AnnotationParser.java:714)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:486)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotationArray(AnnotationParser.java:714)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:486)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:88)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:70)
at java.lang.reflect.Method.declaredAnnotations(Method.java:714)
at java.lang.reflect.Method.getAnnotation(Method.java:700)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.getActionAnnotations(PackageBasedActionConfigBuilder.java:795)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:605)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:335)
at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:215)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:390)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:436)
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:273)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:385)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:119)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4498)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:5317)
at com.sun.enterprise.web.WebModule.start(WebModule.java:353)
at com.sun.enterprise.web.LifecycleStarter.doRun(LifecycleStarter.java:58)
at com.sun.appserv.management.util.misc.RunnableBase.runSync(RunnableBase.java:304)
at com.sun.appserv.management.util.misc.RunnableBase.run(RunnableBase.java:341)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
2016-07-19T14:26:48.339-0500 javax.enterprise.system.container.web
SEVERE: WebModule[/SGMv1_4]PWC1270: Se produjo una excepción al iniciar el filtro struts2
Class: sun.reflect.annotation.AnnotationParser
File: AnnotationParser.java
Method: parseArray
Line: 481 - sun/reflect/annotation/AnnotationParser.java:481:-1
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:449)
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:273)
at org.apache.catalina.core.ApplicationFilterConfig.setFilterDef(ApplicationFilterConfig.java:385)
at org.apache.catalina.core.ApplicationFilterConfig.<init>(ApplicationFilterConfig.java:119)
at org.apache.catalina.core.StandardContext.filterStart(StandardContext.java:4498)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:5317)
at com.sun.enterprise.web.WebModule.start(WebModule.java:353)
at com.sun.enterprise.web.LifecycleStarter.doRun(LifecycleStarter.java:58)
at com.sun.appserv.management.util.misc.RunnableBase.runSync(RunnableBase.java:304)
at com.sun.appserv.management.util.misc.RunnableBase.run(RunnableBase.java:341)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.NullPointerException
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:481)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotationArray(AnnotationParser.java:714)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:486)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotationArray(AnnotationParser.java:714)
at sun.reflect.annotation.AnnotationParser.parseArray(AnnotationParser.java:486)
at sun.reflect.annotation.AnnotationParser.parseMemberValue(AnnotationParser.java:306)
at sun.reflect.annotation.AnnotationParser.parseAnnotation(AnnotationParser.java:241)
at sun.reflect.annotation.AnnotationParser.parseAnnotations2(AnnotationParser.java:88)
at sun.reflect.annotation.AnnotationParser.parseAnnotations(AnnotationParser.java:70)
at java.lang.reflect.Method.declaredAnnotations(Method.java:714)
at java.lang.reflect.Method.getAnnotation(Method.java:700)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.getActionAnnotations(PackageBasedActionConfigBuilder.java:795)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildConfiguration(PackageBasedActionConfigBuilder.java:605)
at org.apache.struts2.convention.PackageBasedActionConfigBuilder.buildActionConfigs(PackageBasedActionConfigBuilder.java:335)
at org.apache.struts2.convention.ClasspathPackageProvider.loadPackages(ClasspathPackageProvider.java:53)
at com.opensymphony.xwork2.config.impl.DefaultConfiguration.reloadContainer(DefaultConfiguration.java:215)
at com.opensymphony.xwork2.config.ConfigurationManager.getConfiguration(ConfigurationManager.java:66)
at org.apache.struts2.dispatcher.Dispatcher.init_PreloadConfiguration(Dispatcher.java:390)
at org.apache.struts2.dispatcher.Dispatcher.init(Dispatcher.java:436)
... 16 more
2016-07-19T14:26:48.341-0500 org.apache.catalina.core.StandardContext
 
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Altan Hernandez wrote:
struts2-core-2.5.2.jar
xwork-core-2.3.8.jar



Struts and Xwork releases are synchronized, so at the very least, those two libraries may be incompatible.  It appears that you are missing several other dependencies.  See this article on how to get them.
 
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