Stephen sir , 

I resolved the below issue by following 
Just exclude the .jar from the .war.

---
Regards,
Sravan.
+91-7760603453


From: [hidden email]
To: [hidden email]
Subject: RE: [rules-users] guvnor startup error
Date: Mon, 21 Oct 2013 22:02:13 +0530

Thanks sir , let me check and get back to you .

---
Regards,
Sravan.
+91-7760603453


Date: Fri, 18 Oct 2013 01:02:50 -0700
From: [hidden email]
To: [hidden email]
Subject: Re: [rules-users] guvnor startup error

It's not something I'm very familiar with, but I can see that there's an error relating to Servlet 2.3, whilst the Jar it's loading is version 3.0.

Not too sure what the resolution would be though. Perhaps Guvnor 5.5 doesn't work on Tomcat 6? Tomcat 7 was the version which introduced Servlet 3.0 support:
        http://tomcat.apache.org/whichversion.html

Steve


On 17 Oct 2013, at 19:02, sravan008 <[hidden email]> wrote:

> Hi I am using 5.5 drools war .when the time of deploying ,each time it
> throwing below error .I request you to please let me know why I am getting
> this error ,and please tell me how to resolve this .
>
>
> INFO: Deploying configuration descriptor drools.xml
> Oct 17, 2013 10:55:57 AM org.apache.catalina.loader.WebappClassLoader
> validateJa
> rFile
> INFO: validateJarFile(C:\Documents and
> Settings\Administrator\Desktop\apache-tom
> cat-6.0.36\webapps\drools\WEB-INF\lib\jboss-servlet-api_3.0_spec-1.0.0.Final.jar
> ) - jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class:
> javax/
> servlet/Servlet.class
> Oct 17, 2013 10:56:04 AM org.apache.catalina.session.StandardManager start
> SEVERE: Exception loading sessions from persistent storage
> java.lang.IllegalStateException: Singleton is not set
>        at
> org.jboss.weld.bootstrap.api.helpers.IsolatedStaticSingletonProvider$
> IsolatedStaticSingleton.get(IsolatedStaticSingletonProvider.java:52)
>        at org.jboss.weld.Container.instance(Container.java:54)
>        at
> org.jboss.weld.manager.BeanManagerImpl.readResolve(BeanManagerImpl.ja
> va:904)
>        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>        at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:57)
>        at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:43)
>        at java.lang.reflect.Method.invoke(Method.java:601)
>        at
> java.io.ObjectStreamClass.invokeReadResolve(ObjectStreamClass.java:10
> 91)
>        at
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1
> 786)
>        at
> java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1347)
>        at
> java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:19
>
>
>
> --
> View this message in context: http://drools.46999.n3.nabble.com/guvnor-startup-error-tp4026413.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
> _______________________________________________
> rules-users mailing list
> [hidden email]
> https://lists.jboss.org/mailman/listinfo/rules-users

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