[TAPESTRY-1648] Coercing from null to BigDecimal causes an NPE

• Type: Bug
• Status: Closed
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 5.0.5
• Fix Version/s: 5.0.6
• Component/s: tapestry-ioc
• Assignee: Howard Lewis Ship
• Reporter: Dan Adams
• Created: 13/Jul/07 20:22
• Updated: 07/Nov/07 19:56
• Resolved: 17/Sep/07 03:06

Description

I'm working on a currency textfield for bigdecimal and I get this exception because it tries to coerce from null to String (which returns null) and then passes a null into the BigDecimal(String) constructor which causes the NPE.

org.apache.tapestry.ioc.internal.util.TapestryException: Failure reading parameter value of component CurrencyFieldTestPage:value: Coercion of null to type java.math.BigDecimal (via null --> String, String --> java.math.BigDecimal) failed: java.lang.NullPointerException [at classpath:com/ifactory/cms/cms/integration/app0/pages/CurrencyFieldTestPage.html, line 5, column 78]
at org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:935)
at org.apache.tapestry.internal.structure.ComponentPageElementImpl.access$100(ComponentPageElementImpl.java:69)
at org.apache.tapestry.internal.structure.ComponentPageElementImpl$10.render(ComponentPageElementImpl.java:349)
at org.apache.tapestry.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:57)
at org.apache.tapestry.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:40)
at $PageMarkupRenderer_113c1389a35.renderPageMarkup($PageMarkupRenderer_113c1389a35.java)
at org.apache.tapestry.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:71)
at $PageResponseRenderer_113c13899fc.renderPageResponse($PageResponseRenderer_113c13899fc.java)
at org.apache.tapestry.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:81)
at $PageRenderRequestHandler_113c13899f1.handle($PageRenderRequestHandler_113c13899f1.java)
at org.apache.tapestry.internal.test.PageLinkInvoker.invoke(PageLinkInvoker.java:57)
at org.apache.tapestry.test.PageTester.invoke(PageTester.java:184)
at org.apache.tapestry.test.PageTester.renderPage(PageTester.java:144)
at com.ifactory.cms.cms.components.CurrencyFieldTest.testFormatting(CurrencyFieldTest.java:23)
Caused by: org.apache.tapestry.ioc.internal.util.TapestryException: Failure reading parameter value of component CurrencyFieldTestPage:value: Coercion of null to type java.math.BigDecimal (via null --> String, String --> java.math.BigDecimal) failed: java.lang.NullPointerException
at org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:210)
at com.ifactory.cms.cms.components.CurrencyField._$read_parameter_value(CurrencyField.java)
at com.ifactory.cms.cms.components.CurrencyField.beginRender(CurrencyField.java:109)
at com.ifactory.cms.cms.components.CurrencyField.beginRender(CurrencyField.java)
at org.apache.tapestry.internal.structure.ComponentPageElementImpl$10$1.run(ComponentPageElementImpl.java:345)
at org.apache.tapestry.internal.structure.ComponentPageElementImpl.invoke(ComponentPageElementImpl.java:931)
... 34 more
Caused by: java.lang.RuntimeException: Coercion of null to type java.math.BigDecimal (via null --> String, String --> java.math.BigDecimal) failed: java.lang.NullPointerException
at org.apache.tapestry.ioc.internal.services.TypeCoercerImpl.coerce(TypeCoercerImpl.java:154)
at $TypeCoercer_113c13899e0.coerce($TypeCoercer_113c13899e0.java)
at org.apache.tapestry.internal.structure.InternalComponentResourcesImpl.readParameter(InternalComponentResourcesImpl.java:206)
... 39 more
Caused by: java.lang.NullPointerException
at java.math.BigDecimal.<init>(BigDecimal.java:594)
at org.apache.tapestry.ioc.services.TapestryIOCModule$7.coerce(TapestryIOCModule.java:219)
at org.apache.tapestry.ioc.services.TapestryIOCModule$7.coerce(TapestryIOCModule.java:217)
at org.apache.tapestry.ioc.services.CoercionTuple$CoercionWrapper.coerce(CoercionTuple.java:53)
at org.apache.tapestry.ioc.internal.services.CompoundCoercion.coerce(CompoundCoercion.java:48)
at org.apache.tapestry.ioc.internal.services.TypeCoercerImpl.coerce(TypeCoercerImpl.java:150)
... 41 more
... Removed 21 stack frames