[TAPESTRY-1871] Null date displayed in a Grid raises error

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 5.0.6
• Fix Version/s: 5.0.7
• Component/s: tapestry-core
• Environment: Debian Lenny; Jetty 5.1.10?; Sun JDK 1.5; AMD 64-bit
• Assignee: Howard Lewis Ship
• Reporter: Andy Huhn
• Created: 29/Oct/07 23:47
• Updated: 20/Nov/07 04:11
• Resolved: 20/Nov/07 04:11

Description

I upgraded to 5.0.6, and since then, if I try to display a Grid that
contains a Date column whose value is NULL, I receive the following
exception:

org.apache.tapestry.ioc.internal.util.TapestryException
Cannot format given Object as a Date
location
classpath:org/apache/tapestry/corelib/pages/PropertyDisplayBlocks.tml, line 8, column 66
3 <t:block id="enum">
4 ${convertedEnumValue}
5 </t:block>
6
7 <t:block id="date">
8 <t:output value="context.propertyValue" format="dateFormat"/>
9 </t:block>
10
11 </div>

• java.lang.IllegalArgumentException
  Cannot format given Object as a Date

Stack trace

• java.text.DateFormat.format(DateFormat.java:279)
• java.text.Format.format(Format.java:133)
• org.apache.tapestry.corelib.components.Output.beginRender(Output.java:67)
• org.apache.tapestry.corelib.components.Output.beginRender(Output.java)
• org.apache.tapestry.internal.structure.ComponentPageElementImpl$10$1.run(ComponentPageElementImpl.java:345)
• org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:923)
• org.apache.tapestry.internal.structure.ComponentPageElementImpl.access$100(ComponentPageElementImpl.java:69)
• org.apache.tapestry.internal.structure.ComponentPageElementImpl$10.render(ComponentPageElementImpl.java:349)
• org.apache.tapestry.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:58)
• org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:40)
• org.apache.tapestry.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:71)
• org.apache.tapestry.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:81)
• org.apache.tapestry.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:72)
• org.apache.tapestry.services.TapestryModule
  $13.service(TapestryModule.java:1108)
• com.homeed.services.AppModule
  $1.service(AppModule.java:82)
• org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)
• org.apache.tapestry.services.TapestryModule
  $2.service(TapestryModule.java:688)
• org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:84)
• org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:97)
• org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:88)
• org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)
• org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:110)
• org.apache.tapestry.services.TapestryModule
  $12.service(TapestryModule.java:1086)
• org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:135)
• org.mortbay.jetty.servlet.WebApplicationHandler
  $CachedChain.doFilter(WebApplicationHandler.java:821)
• org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)
• org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
• org.mortbay.http.HttpContext.handle(HttpContext.java:1530)
• org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
• org.mortbay.http.HttpContext.handle(HttpContext.java:1482)
• org.mortbay.http.HttpServer.service(HttpServer.java:909)
• org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
• org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:982)
• org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
• org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
• org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
• org.mortbay.util.ThreadPool
  $PoolThread.run(ThreadPool.java:534)