Thanks for the quick response. I don't expect a quick resolve of this bug, since it DOES have a workaround.
After some examination of the source code, I think the implementation around scoped adapter may need a serious refactorying because it's something like a HACK resolution. -Wesley 2010/1/29 Scott Ferguson <[email protected]>: > Wesley Wu wrote: >> Hi Scott, >> >> When a @ApplicationScoped/@Singleton bean is designed to be initialized >> after webapp starts (I.E. when first http request was fired) instead of being >> initialized during startup stage, in given circumstance, it won't be >> injected correctly. >> > Thanks for tracking this down. It looks like a circularity problem, > which we should handle but our current tests don't have exactly this > configuration. > > -- Scott >> This is my test case: >> >> ========== StartBean =========== >> public class StartBean { >> @Inject >> FirstBean firstBean; >> } >> ========== FirstBean =========== >> public class FirstBean { >> @Inject >> SecondBean secondBean; >> } >> ========== SecondBean =========== >> public class SecondBean { >> @Inject >> ThirdBean thirdBean; >> @Inject >> FourthBean fourthBean; >> } >> ========== ThirdBean =========== >> public class ThirdBean { >> @Inject >> SingletonBean singletonBean; >> } >> ========== FourthBean =========== >> public class FourthBean { >> @Inject >> SingletonBean dao; >> } >> ========== SingletonBean =========== >> @Singleton >> //@Startup >> public class SingletonBean { >> } >> ========== MyServlet =========== >> public class MyServlet extends HttpServlet { >> @Inject >> StartBean startBean; >> >> protected void doGet(HttpServletRequest request, HttpServletResponse >> response) >> throws ServletException, IOException { >> System.out.println("hello"); >> } >> } >> >> ========= web.xml =========== >> <?xml version="1.0" encoding="UTF-8"?> >> <web-app xmlns="http://java.sun.com/xml/ns/javaee"; >> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; >> xsi:schemaLocation="http://java.sun.com/xml/ns/javaee >> http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; >> version="2.5"> >> >> <servlet id="MyServlet"> >> <servlet-name>MyServlet</servlet-name> >> <servlet-class>com.mycompany.servlet.MyServlet</servlet-class> >> </servlet> >> <servlet-mapping> >> <servlet-name>MyServlet</servlet-name> >> <url-pattern>/MyServlet</url-pattern> >> </servlet-mapping> >> </web-app> >> >> ================================= >> >> The "http://localhost:8080/MyServlet"; request will produce this exception: >> >> com.mycompany.servlet.MyServlet.startBean: >> com.mycompany.beans.StartBean.firstBean: >> com.mycompany.beans.FirstBean.secondBean: >> com.mycompany.beans.SecondBean.fourthBean: >> com.mycompany.beans.FourthBean.singletonBean: >> java.lang.IllegalArgumentException: >> Can not set com.mycompany.beans.SingletonBean field >> com.mycompany.beans.FourthBean.singletonBean >> to com.mycompany.beans.FourthBean >> >> When I annotate the SingletonBean as @Startup, it's fine. (uncomment >> the //@Startup line in SingletonBean.java) >> >> Either @Singleton or @ApplicationScoped throws the exception. >> >> It's a weird bug, taking me nearly two days to reproduce it in such a >> simple test case. >> >> -Wesley >> >> >> _______________________________________________ >> resin-interest mailing list >> [email protected] >> http://maillist.caucho.com/mailman/listinfo/resin-interest >> >> > > > > _______________________________________________ > resin-interest mailing list > [email protected] > http://maillist.caucho.com/mailman/listinfo/resin-interest > _______________________________________________ resin-interest mailing list [email protected] http://maillist.caucho.com/mailman/listinfo/resin-interest
