5.0.9 NullPointerException on TextField

Geoff Callender Thu, 24 Jan 2008 05:09:37 -0800

First, is it OK to use the dev list in this way, given that 5.0.9 isup for a vote?

Second, trying 5.0.9, I'm getting NullPointerException when aTextField is left empty. This wasn't the case in 5.0.7. I haven'ttried the "translate" or "nulls" attribute of TextField but I figuredthis is the ultimate basic case so I shouldn't need to.


Have I misunderstood what's required of TextField in 5.0.9?

Here's the form. The exception occurs if either TextField is leftempty or only spaces are entered:


        <form t:type="form" t:id="form">
                <table>
                        <tr>
                                <td>First Name:</td>
                                <td><input t:type="TextField" 
value="firstName"/></td>
                        </tr>
                        <tr>
                                <td>Last Name:</td>
                                <td><input t:type="TextField" 
value="lastName"/></td>
                        </tr>
                </table>
                <input type="submit" value="Display"/>
        </form>

And the java. You'll see that this is an input screen that isn't setup in advance.


public class BasicInput1 {

        private String _firstName;
        
        private String _lastName;

        @InjectPage
        private BasicInput2 _basicInput2;

        Object onSuccess() {
                _basicInput2.onActivate(_firstName, _lastName);
                return _basicInput2;
        }

        public String getFirstName() {
                return _firstName;
        }

        public String getLastName() {
                return _lastName;
        }

        public void setFirstName(String firstName) {
                _firstName = firstName;
        }

        public void setLastName(String lastName) {
                _lastName = lastName;
        }
}

The stacktrace:

23:10:48,546 ERROR [RequestExceptionHandler] Processing of requestfailed with uncaught exception:org.apache.tapestry.runtime.ComponentEventExceptionorg.apache.tapestry.runtime.ComponentEventException [atclasspath:jumpstart/web/pages/examples/input/BasicInput1.tml, line 7,column 34]atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:973)atorg.apache.tapestry.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:62)atorg.apache.tapestry.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)at$ComponentEventRequestHandler_117ab99912a.handle($ComponentEventRequestHandler_117ab99912a.java)atorg.apache.tapestry.internal.services.AjaxFilter.handle(AjaxFilter.java:42)at$ComponentEventRequestHandler_117ab99912a.handle($ComponentEventRequestHandler_117ab99912a.java)at org.apache.tapestry.services.TapestryModule$39.handle(TapestryModule.java:2071)at$ComponentEventRequestHandler_117ab99912a.handle($ComponentEventRequestHandler_117ab99912a.java)at$ComponentEventRequestHandler_117ab99902f.handle($ComponentEventRequestHandler_117ab99902f.java)atorg.apache.tapestry.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:133)

        at $Dispatcher_117ab999030.dispatch($Dispatcher_117ab999030.java)
        at $Dispatcher_117ab999024.dispatch($Dispatcher_117ab999024.java)

at org.apache.tapestry.services.TapestryModule$13.service(TapestryModule.java:924)atorg.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)at org.apache.tapestry.services.TapestryModule$3.service(TapestryModule.java:516)at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)at org.apache.tapestry.services.TapestryModule$2.service(TapestryModule.java:491)at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)atorg.apache.tapestry.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:53)

        at $RequestFilter_117ab999023.service($RequestFilter_117ab999023.java)

at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)atorg.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)at org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:93)at org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:84)atorg.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)atorg.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)at$RequestHandler_117ab999025.service($RequestHandler_117ab999025.java)at$RequestHandler_117ab99901d.service($RequestHandler_117ab99901d.java)at org.apache.tapestry.services.TapestryModule$12.service(TapestryModule.java:904)at$HttpServletRequestHandler_117ab99901c.service($HttpServletRequestHandler_117ab99901c.java)

        at org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:164)

atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)atorg.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)atorg.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)atorg.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)atorg.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)atorg.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)atorg.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)atorg.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)atorg.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)atorg.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)atorg.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)atorg.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)atorg.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)atorg.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)

        at java.lang.Thread.run(Thread.java:613)
Caused by: org.apache.tapestry.runtime.ComponentEventException

atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:973)atorg.apache.tapestry.internal.structure.InternalComponentResourcesImpl.triggerEvent(InternalComponentResourcesImpl.java:154)

        at org.apache.tapestry.corelib.components.Form.onAction(Form.java:388)

atorg.apache.tapestry.corelib.components.Form.dispatchComponentEvent(Form.java)atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:840)atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:954)

        ... 50 more
Caused by: java.lang.NullPointerException

atorg.apache.tapestry.internal.TapestryInternalUtils.escapePercentAndSlash(TapestryInternalUtils.java:514)atorg.apache.tapestry.internal.TapestryInternalUtils.encodeContext(TapestryInternalUtils.java:504)atorg.apache.tapestry.internal.services.ComponentInvocationImpl.getPath(ComponentInvocationImpl.java:101)atorg.apache.tapestry.internal.services.ComponentInvocationImpl.buildURI(ComponentInvocationImpl.java:60)atorg.apache.tapestry.internal.services.LinkImpl.buildURI(LinkImpl.java:105)atorg.apache.tapestry.internal.services.LinkImpl.toRedirectURI(LinkImpl.java:120)atorg.apache.tapestry.internal.services.ResponseImpl.sendRedirect(ResponseImpl.java:69)

        at $Response_117ab999079.sendRedirect($Response_117ab999079.java)
        at $Response_117ab999012.sendRedirect($Response_117ab999012.java)

atorg.apache.tapestry.internal.services.ActionRenderResponseGeneratorImpl.generateResponse(ActionRenderResponseGeneratorImpl.java:45)at$ActionRenderResponseGenerator_117ab999014.generateResponse($ActionRenderResponseGenerator_117ab999014.java)atorg.apache.tapestry.internal.services.ComponentInstanceResultProcessor.processResultValue(ComponentInstanceResultProcessor.java:53)atorg.apache.tapestry.internal.services.ComponentInstanceResultProcessor.processResultValue(ComponentInstanceResultProcessor.java:25)at$ComponentEventResultProcessor_117ab99912d.processResultValue($ComponentEventResultProcessor_117ab99912d.java)at$ComponentEventResultProcessor_117ab99912e.processResultValue($ComponentEventResultProcessor_117ab99912e.java)at$ComponentEventResultProcessor_117ab999031.processResultValue($ComponentEventResultProcessor_117ab999031.java)atorg.apache.tapestry.internal.services.ComponentResultProcessorWrapper.handleResult(ComponentResultProcessorWrapper.java:43)at org.apache.tapestry.internal.structure.ComponentPageElementImpl$13.handleResult(ComponentPageElementImpl.java:936)atorg.apache.tapestry.internal.services.EventImpl.storeResult(EventImpl.java:60)at jumpstart.web.pages.examples.input.BasicInput1.dispatchComponentEvent(BasicInput1.java)atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:832)atorg.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:954)

        ... 55 more

The exception page:

An unexpected application exception has occurred.

org.apache.tapestry.runtime.ComponentEventException
context
[Ljava.lang.String;@830a79
eventType
action
location

classpath:jumpstart/web/pages/examples/input/BasicInput1.tml, line 7,column 34

2       <body>
3               <h1>Basic Input (1)</h1>
4

5 This page demonstrates the Form component with TextField componentsand submit button handling. It does no validation.<br/><br/>

6                       
7               <form t:type="form" t:id="form">
8                       <table>
9                               <tr>
10                                      <td>First Name:</td>
11                                      <td><input t:type="TextField" 
value="firstName"/></td>
12                              </tr>
org.apache.tapestry.runtime.ComponentEventException
context
[Ljava.lang.String;@830a79
eventType
success
java.lang.NullPointerException
Stack trace

org.apache.tapestry.internal.TapestryInternalUtils.escapePercentAndSlash(TapestryInternalUtils.java:514)org.apache.tapestry.internal.TapestryInternalUtils.encodeContext(TapestryInternalUtils.java:504)org.apache.tapestry.internal.services.ComponentInvocationImpl.getPath(ComponentInvocationImpl.java:101)org.apache.tapestry.internal.services.ComponentInvocationImpl.buildURI(ComponentInvocationImpl.java:60)org.apache.tapestry.internal.services.LinkImpl.buildURI(LinkImpl.java:105)org.apache.tapestry.internal.services.LinkImpl.toRedirectURI(LinkImpl.java:120)org.apache.tapestry.internal.services.ResponseImpl.sendRedirect(ResponseImpl.java:69)org.apache.tapestry.internal.services.ActionRenderResponseGeneratorImpl.generateResponse(ActionRenderResponseGeneratorImpl.java:45)org.apache.tapestry.internal.services.ComponentInstanceResultProcessor.processResultValue(ComponentInstanceResultProcessor.java:53)org.apache.tapestry.internal.services.ComponentInstanceResultProcessor.processResultValue(ComponentInstanceResultProcessor.java:25)org.apache.tapestry.internal.services.ComponentResultProcessorWrapper.handleResult(ComponentResultProcessorWrapper.java:43)org.apache.tapestry.internal.structure.ComponentPageElementImpl$13.handleResult(ComponentPageElementImpl.java:936)org.apache.tapestry.internal.services.EventImpl.storeResult(EventImpl.java:60)jumpstart.web.pages.examples.input.BasicInput1.dispatchComponentEvent(BasicInput1.java)org.apache.tapestry.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:832)org.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:954)org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.triggerEvent(InternalComponentResourcesImpl.java:154)

org.apache.tapestry.corelib.components.Form.onAction(Form.java:388)

org.apache.tapestry.corelib.components.Form.dispatchComponentEvent(Form.java)org.apache.tapestry.internal.structure.ComponentPageElementImpl.dispatchEvent(ComponentPageElementImpl.java:840)org.apache.tapestry.internal.structure.ComponentPageElementImpl.triggerEvent(ComponentPageElementImpl.java:954)org.apache.tapestry.internal.services.ComponentEventRequestHandlerImpl.handle(ComponentEventRequestHandlerImpl.java:62)org.apache.tapestry.internal.services.ImmediateActionRenderResponseFilter.handle(ImmediateActionRenderResponseFilter.java:42)org.apache.tapestry.internal.services.AjaxFilter.handle(AjaxFilter.java:42)org.apache.tapestry.services.TapestryModule$39.handle(TapestryModule.java:2071)org.apache.tapestry.internal.services.ComponentEventDispatcher.dispatch(ComponentEventDispatcher.java:133)org.apache.tapestry.services.TapestryModule$13.service(TapestryModule.java:924)org.apache.tapestry.internal.services.LocalizationFilter.service(LocalizationFilter.java:43)org.apache.tapestry.services.TapestryModule$3.service(TapestryModule.java:516)org.apache.tapestry.services.TapestryModule$2.service(TapestryModule.java:491)org.apache.tapestry.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:53)org.apache.tapestry.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:79)org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:93)org.apache.tapestry.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:84)org.apache.tapestry.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:77)org.apache.tapestry.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:106)org.apache.tapestry.services.TapestryModule$12.service(TapestryModule.java:904)

org.apache.tapestry.TapestryFilter.doFilter(TapestryFilter.java:164)

org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)

org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
java.lang.Thread.run(Thread.java:613)
Request

Context Path
/jumpstart
Request Path
/examples/input/basicinput1.form
Locale
en_US
Query Parameters
t:formdata
H4sIAAAAAAAAAFvzloG1XI1BJbUiMbcgJ7VYPzOvoLRE3ymxODPZE8Q0tCpJrShJy0zNSSkuYrDKL0rXSyxITM5I1StJLEgtLimq1EvOL0rNyUzSS0osTtVzTAKKJSaXuIF0qASnlpQWOCaXZObnqYYe5n4oevwPEwOjDwNPfGpOam5qXolfYm5qCYOQT1ZiWaJ+TmJeun5wSVFmXrp1RUEJAyfcahKc6EaiEwOK8pNTi4uDS5NyM4uLgQ6FOPfwuhSTtG/zzjExMFQUlGswqBFjfbxBcSFDHQNDCQM3khjxukGaWQGx57eLkwEAAA==
textfield
textfield_0
b
Headers
accept

text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5

accept-encoding
gzip, deflate
accept-language
en-us
connection
keep-alive
content-length
366
content-type
application/x-www-form-urlencoded
cookie
JSESSIONID=943A0DC434B21C8F518EC434709F7F2C
host
localhost:8180
referer
http://localhost:8180/jumpstart/examples/input/basicinput1
user-agent

Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-us) AppleWebKit/523.10.6(KHTML, like Gecko) Version/3.0.4 Safari/523.10.6

Session

state:Start:form:defaultTracker
[EMAIL PROTECTED]
state:examples/input/BasicInput1:form:defaultTracker
[EMAIL PROTECTED]

Cheers,

Geoff

5.0.9 NullPointerException on TextField

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