[ http://issues.apache.org/jira/browse/MYFACES-210?page=comments#action_12357285 ]
Ken Weiner commented on MYFACES-210: ------------------------------------ I am experiencing the same issue. See mailing list thread: http://www.mail-archive.com/users%40myfaces.apache.org/msg11719.html Since my Application is not an ApplicationImpl, FacesConfigurator doesn't inject the configuration into ApplicationImpl and then when MyApplication delegates to ApplicationImpl, ApplicationImpl throws a NullPointerException in this code because it has a registered converter but not the corresponding configuration: private Converter internalCreateConverter(Class targetClass) { .... Converter converter = (Converter) converterClass.newInstance(); org.apache.myfaces.config.impl.digester.elements.Converter converterConfig = (org.apache.myfaces.config.impl.digester.elements.Converter) _converterClassNameToConfigurationMap.get(converterClass.getName()); Iterator it = converterConfig.getProperties(); <-- a NPE is thrown here because converterConfig is null .... } The result is this stack trace. My application is "SpringApplication": Caused by: javax.faces.FacesException: Could not instantiate converter: class javax.faces.convert.IntegerConverter at org.apache.myfaces.application.ApplicationImpl.internalCreateConverter(ApplicationImpl.java:556) at org.apache.myfaces.application.ApplicationImpl.createConverter(ApplicationImpl.java:494) at org.lmb.web.jsf.SpringApplication.createConverter(SpringApplication.java:287) ... 34 more Caused by: java.lang.NullPointerException at org.apache.myfaces.application.ApplicationImpl.internalCreateConverter(ApplicationImpl.java:534) ... 36 more > Undesired dependency on ApplicationImpl in FacesConfigurator > ------------------------------------------------------------ > > Key: MYFACES-210 > URL: http://issues.apache.org/jira/browse/MYFACES-210 > Project: MyFaces > Type: Bug > Components: Implementation > Versions: 1.0.9m9 > Environment: Custom ApplicationFactory and Application Objects > Reporter: Walter Snel > Assignee: Martin Marinschek > Priority: Minor > > Manfred's recent additions related to the configurability of Converters > created a dependency on a particular Application implementation in the > FacesConfigurator. > I noticed this because I'm using a custom ApplicationFactory that returns a > custom Facade (with augmentations) to the ApplicationImpl class. > In this case the FacesConfigurator doesn't call the > addConverterConfiguration. This, later on, leads to horrible nullpointer > exceptions when any of standard converters are used. Perhaps we could > consider using relfection instead of the current 'instanceof' mechanism to > find out if the addConverterConfiguration() method is supported ? -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://issues.apache.org/jira/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira