我正在尝试将运行在Tomcat 7上的Apache Trinidad的现有应用程序迁移到Tomcat 8，并因使用而收到以下错误。
据我所知，特立尼达正在寻求生命支持。该网站充斥着死链接，并且一年半没有更新。
Trinidad convertNumber组件的最初目的是更严格，如果输入的数字无效，则抛出验证错误，即123.23.455。
问题： 1. Trinidad EOL还是有计划更新Trinidad以与Tomcat 8规格兼容？ 2. MyFaces impl of convertNumber是否提供与Trinidad的convertNumber组件相同的验证？
转换数字组件：
<tr:convertNumber maxFractionDigits="4" />
例外：
Stacktrace:
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:584)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:481)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:385)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:329)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:728)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:467)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:392)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:311)
at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:368)
at javax.faces.context.ExternalContextWrapper.dispatch(ExternalContextWrapper.java:68)
at javax.faces.context.ExternalContextWrapper.dispatch(ExternalContextWrapper.java:68)
at javax.faces.context.ExternalContextWrapper.dispatch(ExternalContextWrapper.java:68)
at org.apache.myfaces.trinidadinternal.context.FacesContextFactoryImpl$OverrideDispatch.dispatch(FacesContextFactoryImpl.java:173)
at org.apache.myfaces.view.jsp.JspViewDeclarationLanguage.buildView(JspViewDeclarationLanguage.java:96)
at org.apache.myfaces.trinidad.view.ViewDeclarationLanguageWrapper.buildView(ViewDeclarationLanguageWrapper.java:94)
at org.apache.myfaces.trinidadinternal.application.ViewDeclarationLanguageFactoryImpl$ChangeApplyingVDLWrapper.buildView(ViewDeclarationLanguageFactoryImpl.java:322)
at org.apache.myfaces.lifecycle.RenderResponseExecutor.execute(RenderResponseExecutor.java:66)
at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:239)
... 28 more
Caused by: java.lang.NullPointerException
at org.apache.jasper.el.JspValueExpression.getValue(JspValueExpression.java:113)
at org.apache.myfaces.trinidadinternal.taglib.convert.ConvertNumberTag._setProperties(ConvertNumberTag.java:303)
at org.apache.myfaces.trinidadinternal.taglib.convert.ConvertNumberTag.createConverter(ConvertNumberTag.java:168)
at org.apache.myfaces.trinidad.webapp.TrinidadConverterELTag.doStartTag(TrinidadConverterELTag.java:68)
at org.apache.jsp.page1_jspx._jspx_meth_tr_005fconvertNumber_005f0(page1_jspx.java:530)
at org.apache.jsp.page1_jspx._jspx_meth_tr_005finputText_005f1(page1_jspx.java:497)
at org.apache.jsp.page1_jspx._jspx_meth_tr_005fpanelPage_005f0(page1_jspx.java:397)
at org.apache.jsp.page1_jspx._jspx_meth_tr_005fform_005f0(page1_jspx.java:356)
at org.apache.jsp.page1_jspx._jspx_meth_tr_005fdocument_005f0(page1_jspx.java:237)
at org.apache.jsp.page1_jspx._jspx_meth_f_005fview_005f0(page1_jspx.java:199)
at org.apache.jsp.page1_jspx._jspService(page1_jspx.java:161)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:443)
... 50 more