Question

我正在使用Omnifaces 1.8.1，每当我将我的应用程序部署到Glassfish时，我都会收到以下警告，这会导致部署过程出现延迟。

Warning:   WELD-001519 An InjectionTarget implementation is created for an abstract class org.omnifaces.eventlistener.DefaultHttpSessionListener. 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.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.eventlistener.DefaultServletRequestListener. 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:   The following warnings have been detected: 

WARNING: Parameter 1 of type java.util.List<javax.enterprise.inject.spi.Bean<?>> from public void org.omnifaces.cdi.eager.EagerBeansRepository.setApplicationScopedBeans(java.util.List<javax.enterprise.inject.spi.Bean<?>>) is not resolvable to a concrete type.   
WARNING: Parameter 1 of type java.util.Map<java.lang.String, java.util.List<javax.enterprise.inject.spi.Bean<?>>> from public void org.omnifaces.cdi.eager.EagerBeansRepository.setRequestScopedBeansViewId(java.util.Map<java.lang.String, java.util.List<javax.enterprise.inject.spi.Bean<?>>>) is not resolvable to a concrete type.
WARNING: Parameter 1 of type java.util.Map<java.lang.String, java.util.List<javax.enterprise.inject.spi.Bean<?>>> from public void org.omnifaces.cdi.eager.EagerBeansRepository.setRequestScopedBeansRequestURI(java.util.Map<java.lang.String, java.util.List<javax.enterprise.inject.spi.Bean<?>>>) is not resolvable to a concrete type.
WARNING: Parameter 1 of type java.util.List<javax.enterprise.inject.spi.Bean<?>> from public void org.omnifaces.cdi.eager.EagerBeansRepository.setSessionScopedBeans(java.util.List<javax.enterprise.inject.spi.Bean<?>>) is not resolvable to a concrete type.

我已经升级到Omnifaces 2.0并且仍然得到相同的警告，这在经常应用部署的开发过程中非常烦人。是什么导致了这些警告？

PS：开发环境：

Glassfish 4.1
Java 8
JSF 2.2.0（Mojarra）
Primefaces 4.0
Netbeans 8

Answer 1

这是Weld特有的。这些警告是无辜的，实际上并没有显着延迟部署。

对于无法解析的参数警告，CDI确实不支持使用通配符参数化参数（如List<?>）的代理方法。然而，这些警告的烦恼是可以理解的。由于这些方法都是包私有的，因此我按照this commit的可见性进行了缩减，以便Weld不会尝试检查它们。该修复程序位于OmniFaces 2.1 SNAPSHOT。

关于抽象类的WELD-001519警告，这确实是完全没必要的。这在Weld 2.1.1 / 2.2.0中已经是fixed。另请参阅重复的问题：WELD-001519 An InjectionTarget implementation is created for an abstract class 'xxx'. It will not be possible to produce instances of this type。

警告：List <bean <？>＆gt;类型的参数1 from public void org.omnifaces.cdi.eager.EagerBeansRepository.setXxx无法解析为具体类型</bean <？>

1 个答案: