[rules-users] guvnor startup error

[sravan008]

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



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