This exception almost killed me.

2009-8-5 14:27:08 org. Apache. Catalina. Core. standardcontext listenerstart
Severe: exception sending context initialized event to listener instance of class org. springframework. Web. Context. contextloaderlistener
Org. springframework. beans. factory. beancreationexception: Error creating bean with name 'xxxaction' defined in servletcontext resource [applicationcontext. XML]: Error setting property values; Nested exception is Org. springframework. beans. notwritablepropertyexception: Invalid property 'xxxservice' of Bean class [action. xxxaction]: bean property 'xxxservice' is not writable or has an invalid setter me Thod. Does the parameter type of the setter match the return type of the getter?
Caused by: Org. springframework. beans. notwritablepropertyexception: Invalid property 'xxxservice' of Bean class [action. xxxaction]: bean property 'xxxservice' is not writable or has an invalid setter method. does the parameter type of the setter match the return type of the getter?
At org. springframework. Beans. beanwrapperimpl. setpropertyvalue (beanwrapperimpl. Java: 793)
At org. springframework. Beans. beanwrapperimpl. setpropertyvalue (beanwrapperimpl. Java: 645)
At org. springframework. Beans. abstractpropertyaccessor. setpropertyvalues (abstractpropertyaccessor. Java: 78)
At org. springframework. Beans. abstractpropertyaccessor. setpropertyvalues (abstractpropertyaccessor. Java: 59)
At org. springframework. Beans. Factory. Support. abstractautowirecapablebeanfactory. applypropertyvalues (abstractautowirecapablebeanfactory. Java: 1122)
At org. springframework. Beans. Factory. Support. abstractautowirecapablebeanfactory. populatebean (abstractautowirecapablebeanfactory. Java: 857)
At org. springframework. Beans. Factory. Support. abstractautowirecapablebeanfactory. createbean (abstractautowirecapablebeanfactory. Java: 423)
At org. springframework. Beans. Factory. Support. abstractbeanfactory $1. GetObject (abstractbeanfactory. Java: 249)
At org. springframework. Beans. Factory. Support. defaultsingletonbeanregistry. getsingleton (defaultsingletonbeanregistry. Java: 155)
At org. springframework. Beans. Factory. Support. abstractbeanfactory. getbean (abstractbeanfactory. Java: 246)
At org. springframework. Beans. Factory. Support. abstractbeanfactory. getbean (abstractbeanfactory. Java: 160)
At org. springframework. Beans. Factory. Support. defaultlistablebeanfactory. preinstantiatesingletons (defaultlistablebeanfactory. Java: 291)
At org. springframework. Context. Support. abstractapplicationcontext. Refresh (abstractapplicationcontext. Java: 352)
At org. springframework. Web. Context. contextloader. createwebapplicationcontext (contextloader. Java: 245)
At org. springframework. Web. Context. contextloader. initwebapplicationcontext (contextloader. Java: 188)
At org. springframework. Web. Context. contextloaderlistener. contextinitialized (contextloaderlistener. Java: 49)
At org. Apache. Catalina. Core. standardcontext. listenerstart (standardcontext. Java: 3843)
At org. Apache. Catalina. Core. standardcontext. Start (standardcontext. Java: 4342)
At org. Apache. Catalina. Core. containerbase. addchildinternal (containerbase. Java: 791)
At org. Apache. Catalina. Core. containerbase. addchild (containerbase. Java: 771)
At org. Apache. Catalina. Core. standardhost. addchild (standardhost. Java: 525)
At org. Apache. Catalina. startup. hostconfig. deploydirectory (hostconfig. Java: 926)
At org. Apache. Catalina. startup. hostconfig. deploydirectories (hostconfig. Java: 889)
At org. Apache. Catalina. startup. hostconfig. deployapps (hostconfig. Java: 492)
At org. Apache. Catalina. startup. hostconfig. Start (hostconfig. Java: 1149)
At org. Apache. Catalina. startup. hostconfig. lifecycleevent (hostconfig. Java: 311)
At org. Apache. Catalina. util. lifecyclesupport. firelifecycleevent (lifecyclesupport. Java: 117)
At org. Apache. Catalina. Core. containerbase. Start (containerbase. Java: 1053)
At org. Apache. Catalina. Core. standardhost. Start (standardhost. Java: 719)
At org. Apache. Catalina. Core. containerbase. Start (containerbase. Java: 1045)
At org. Apache. Catalina. Core. standardengine. Start (standardengine. Java: 443)
At org. Apache. Catalina. Core. standardservice. Start (standardservice. Java: 516)
At org. Apache. Catalina. Core. standardserver. Start (standardserver. Java: 710)
At org. Apache. Catalina. startup. Catalina. Start (Catalina. Java: 578)
At sun. Reflect. nativemethodaccessorimpl. invoke0 (native method)
At sun. Reflect. nativemethodaccessorimpl. Invoke (nativemethodaccessorimpl. Java: 39)
At sun. Reflect. delegatingmethodaccessorimpl. Invoke (delegatingmethodaccessorimpl. Java: 25)
At java. Lang. Reflect. method. Invoke (method. Java: 597)
At org. Apache. Catalina. startup. Bootstrap. Start (Bootstrap. Java: 288)
At org. Apache. Catalina. startup. Bootstrap. Main (Bootstrap. Java: 413)
2009-8-5 14:27:08 org. Apache. Catalina. Core. standardcontext start
Severe: Error listenerstart
2009-8-5 14:27:08 org. Apache. Catalina. Core. standardcontext start
Severe: context [/xxx] startup failed due to previous errors
2009-8-5 14:27:08 org. Apache. Catalina. Core. applicationcontext log
Information: Closing spring root webapplicationcontext
2009-8-5 14:27:09 org. Apache. Catalina. loader. webappclassloader validatejarfile
Information: validatejarfile (X: \ Tomcat 6.0 \ webapps \ XXX \ WEB-INF \ Lib \ servlet-api.jar)-jar not loaded. see servlet spec 2.3, section 9.7.2. offending class: javax/servlet. class
14:27:11 org. Apache. Coyote. http11.http11aprprotocol start
Information: Starting coyote HTTP/1.1 on http-8080
2009-8-5 14:27:11 org. Apache. Coyote. AJP. ajpaprprotocol start
Information: Starting coyote AJP/1.3 on ajp-8009
2009-8-5 14:27:11 org. Apache. Catalina. startup. Catalina start
Information: server startup in 16335 MS