Develop Reference

when using smack and servlets to connect to facebook chat

using jar files: smack3.3.1.jar, restfb 1.5.4.jar
SEVERE: Allocate exception for servlet FriendsListServlet
java.lang.ClassNotFoundException: org.jivesoftware.smack.XMPPException
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2398)
at java.lang.Class.getConstructor0(Class.java:2708)
at java.lang.Class.newInstance0(Class.java:328)
at java.lang.Class.newInstance(Class.java:310)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1104)
at org.apache.catalina.core.StandardWrapper.allocate(StandardWrapper.java:806)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:129)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:662)

problem with myeclipse, I have removed all jar files from myproject(right-click)>>properties>>java Built Path>> libraries.
Then I added jar files directly to lib folder of myproject.
It solved my problem.

Migrating tomcat war to JBoss

I have redeployed tomcat web application struts war to jboss 5.1.
It's showing successfully deployed, but when i am accessing my home page of web application it's giving an error i.e.
ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
java.lang.ClassCastException: org.apache.catalina.connector.RequestFacade cannot be cast to javax.servlet.http.HttpServletRequest
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:73)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

You need to make sure that jboss uses its own servlet-api.jar and not any other one. If you are packaging the servlet-api.jar in your war file then simply remove it and try.

Java Web Project not able to execute DLL File from Inside Eclipse

I have a web project which is working fine when I am deploying that project to individual tomcat but when I am trying to run same project from inside Eclipse and in same tomcat instance it is not working throws the following exception:
java.lang.UnsatisfiedLinkError: C:\ms4w\Apache\cgi-bin\mapscript.dll:
The operating system cannot run %1 at
java.lang.ClassLoader$NativeLibrary.load(Native Method) at
java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1807) at
java.lang.ClassLoader.loadLibrary(ClassLoader.java:1732) at
java.lang.Runtime.loadLibrary0(Runtime.java:823) at
java.lang.System.loadLibrary(System.java:1028) at
edu.umn.gis.mapscript.mapscriptJNI.<clinit>(mapscriptJNI.java:26) at
edu.umn.gis.mapscript.mapObj.<init>(mapObj.java:283) at
GISExtension.GISRequest.createMapInfo(GISRequest.java:193) at
GISExtension.GISRequest.doPost(GISRequest.java:166) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:637) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at
org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
The Java code for above exception is:
String library = System.getProperty("mapserver.library.name", "mapscript");
System.loadLibrary(library);
Can anyone help me solve above Exception?

Tomcat 6.0.24 Exception: javax.servlet.ServletException: Servlet execution threw an exception

I am using java RestEasy Framwork for my application. I have some exception when I am trying to make a requet in tomcat server.
Full stackTrace is:
Sep 26, 2011 1:50:06 PM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet my-servlet threw exception
java.lang.VerifyError: Cannot inherit from final class
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClassCond(ClassLoader.java:632)
at java.lang.ClassLoader.defineClass(ClassLoader.java:616)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:2331)
at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:976)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1451)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1329)
at org.codehaus.jackson.jaxrs.MapperConfigurator.getDefaultMapper(MapperConfigurator.java:69)
at org.codehaus.jackson.jaxrs.JacksonJsonProvider.locateMapper(JacksonJsonProvider.java:587)
at org.codehaus.jackson.jaxrs.JacksonJsonProvider.readFrom(JacksonJsonProvider.java:404)
at org.jboss.resteasy.core.interception.MessageBodyReaderContextImpl.proceed(MessageBodyReaderContextImpl.java:105)
at org.jboss.resteasy.plugins.interceptors.encoding.GZIPDecodingInterceptor.read(GZIPDecodingInterceptor.java:61)
at org.jboss.resteasy.core.interception.MessageBodyReaderContextImpl.proceed(MessageBodyReaderContextImpl.java:108)
at org.jboss.resteasy.security.doseta.DigitalVerificationInterceptor.read(DigitalVerificationInterceptor.java:35)
at org.jboss.resteasy.core.interception.MessageBodyReaderContextImpl.proceed(MessageBodyReaderContextImpl.java:108)
at org.jboss.resteasy.core.MessageBodyParameterInjector.inject(MessageBodyParameterInjector.java:168)
at org.jboss.resteasy.core.MethodInjectorImpl.injectArguments(MethodInjectorImpl.java:114)
at org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:137)
at org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:255)
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:220)
at org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:209)
at org.jboss.resteasy.core.SynchronousDispatcher.getResponse(SynchronousDispatcher.java:519)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:496)
at org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:119)
at org.jboss.resteasy.plugins.server.servlet.ServletContainerDispatcher.service(ServletContainerDispatcher.java:208)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:55)
at org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:50)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
What could be the problem?

The exception says that your servlet/JSP extends some other class, and that class is marked as final. Anyway, if it is a servlet (and not a JSP) that should have been detected at compile time.

MAke sure the spring-expressions.jar exists in your tomcat libs directory... i had to copy it there (apart from copying it to my WEB-INF/libs) but doing the copy of that jar to my tomcat directory solved my similar problem

Getting java.lang.NoClassDefFoundError: Filter exception on Jboss

I have been using Tomcat 6 for all my application development and deployment purposed, but today decided to use JBoss as it seems to be more scalable.
But after configuring JBoss on my eclipse and deploying my application I get the following error,
Getting java.lang.NoClassDefFoundError: Filter exception on Jboss
I added the server library in the server classpath and the error disappeared, but still the application fails to load, since spring doesn't initialize.
UPDATE
Now I am getting the following error, the application runs fine in Tomcat 6, this the stack trace I am getting,
2010-02-11 23:17:48,959 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/cric140].[action]] (http-127.0.0.1-8080-1) Servlet.service() for servlet action threw exception
org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named '/login' is defined
at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanDefinition(DefaultListableBeanFactory.java:387)
at org.springframework.beans.factory.support.AbstractBeanFactory.getMergedLocalBeanDefinition(AbstractBeanFactory.java:968)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:246)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:185)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:168)
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:885)
at org.springframework.web.struts.DelegatingActionProxy.getDelegateAction(DelegatingActionProxy.java:127)
at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:109)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:425)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:228)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1913)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:449)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.indiagames.inrev.auth.IRAuthFilter.doFilter(IRAuthFilter.java:189)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:595)
Can't seem to understand why spring fails to load, I have the following description in my web.xml,
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/*Context.xml</param-value>
</context-param>

Check all of your spring bean configs inside every xml files under classpath:spring/*Context.xml whether you have defined a bean named '/login'.
If the spring bean xml definition files is inside a jar file, make sure the jar is available in your webapp and make sure those jars contain the spring bean definition.