我正在以下环境中运行应用程序。
添加OmniFaces后，服务器终端上会出现以下警告。
WARNING: WELD-001519 An InjectionTarget implementation is created for an abstract class org.omnifaces.eventlistener.DefaultServletContextListener. It will not be possible to produce instances of this type!
WARNING: WELD-001519 An InjectionTarget implementation is created for an abstract class org.omnifaces.filter.HttpFilter. It will not be possible to produce instances of this type!
//WARNING: Class 'javax.ejb.PostActivate' not found, interception based on it is not enabled
//WARNING: Class 'javax.ejb.PrePassivate' not found, interception based on it is not enabled
INFO: Initializing Mojarra 2.2.4 ( 20131003-1354 https://svn.java.net/svn/mojarra~svn/tags/2.2.4@12574) for context '/Project-war'
WARNING: WELD-001529 An InjectionTarget implementation is created for a class org.omnifaces.application.OmniApplicationFactory which does not have any appropriate constructor.
WARNING: WELD-001529 An InjectionTarget implementation is created for a class org.primefaces.context.PrimeFacesContextFactory which does not have any appropriate constructor.
WARNING: WELD-001529 An InjectionTarget implementation is created for a class org.omnifaces.context.OmniPartialViewContextFactory which does not have any appropriate constructor.
WARNING: WELD-001529 An InjectionTarget implementation is created for a class org.primefaces.context.PrimePartialViewContextFactory which does not have any appropriate constructor.
INFO: Running on PrimeFaces 4.0
INFO: Running on PrimeFaces Extensions null
INFO: Using OmniFaces version null
INFO: Loading application [Project#Project-war.war] at [Project-war]
INFO: Project was successfully deployed in 22,734 milliseconds.
在给定环境中OmniFaces有任何问题吗？
答案 0 :(得分：5)
不，这些只是警告，而不是错误。 Weld无法为没有默认构造函数的抽象类或类创建注入目标。注射目标需要能够毫无困难地进行Class.forName(className).newInstance()。
记录中的这种干扰已经报告为Weld issue 1547，因此，自Weld 2.1.1 / 2.2.0起，警告级别降低到DEBUG级别。
注意到应该存在另一个错误，很可能与GlassFish类加载有关。 OmniFaces有一个VetoAnnotatedTypeExtension，它应该排除所有那些OmniFaces类被不必要地扫描为CDI托管bean。当在Tomcat 7和JBoss 6/7/8中使用Weld时，这可以正常工作。即对于OmniFaces类，这些警告根本没有出现。