[FLEX-35190] [FlexJS] DataItemRenderer breaks if extends as MXML file

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Apache FlexJS 0.8.0
• Fix Version/s: Apache FalconJX 0.8.0
• Assignee: Alex Harui
• Reporter: Devsena
• Created: 02/Dec/16 04:58
• Updated: 16/Dec/16 08:56
• Resolved: 06/Dec/16 19:43

Description

I took a nightly build of Apache FlexJS and tried by it's supplied DataGridExample example project. The example used a custom DataItemRenderer class, but it was an ActionScript implementation.

When I tried to create MXML file extending same DataItemRenderer class, when used to DataGrid component, I couldn't even able to build but thrown by compiler error:

1551: Internal error in ABC generator subsystem, when generating code for: E:\apache-flex-flexjs-0.8.0-bin\examples\flexjs\DataGridExample\src\products\ProductItemRendererMXML.mxml: java.lang.NullPointerException

I'm attaching herewith the full error details for your review:

Description Resource Path Location Type
1551: Internal error in ABC generator subsystem, when generating code for: E:\apache-flex-flexjs-0.8.0-bin\examples\flexjs\DataGridExample\src\products\ProductItemRendererMXML.mxml: java.lang.NullPointerException
at org.apache.flex.compiler.internal.codegen.databinding.BindingInfo.analyzeExpression(BindingInfo.java:488)
at org.apache.flex.compiler.internal.codegen.databinding.BindingInfo.finishInit(BindingInfo.java:171)
at org.apache.flex.compiler.internal.codegen.databinding.BindingInfo.<init>(BindingInfo.java:115)
at org.apache.flex.compiler.internal.codegen.databinding.BindingAnalyzer.analyze(BindingAnalyzer.java:56)
at org.apache.flex.compiler.internal.codegen.databinding.BindingDatabase.analyze(BindingDatabase.java:122)
at org.apache.flex.compiler.internal.codegen.databinding.MXMLBindingDirectiveHelper.visitNode(MXMLBindingDirectiveHelper.java:116)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLDataBinding(MXMLClassDirectiveProcessor.java:4797)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLPropertySpecifier(MXMLClassDirectiveProcessor.java:3696)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:962)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLInstance(MXMLClassDirectiveProcessor.java:3349)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:939)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLArray(MXMLClassDirectiveProcessor.java:3088)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:926)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLPropertySpecifier(MXMLClassDirectiveProcessor.java:3605)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:962)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLInstance(MXMLClassDirectiveProcessor.java:3349)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:939)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLArray(MXMLClassDirectiveProcessor.java:3088)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:926)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMXMLPropertySpecifier(MXMLClassDirectiveProcessor.java:3605)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processNode(MXMLClassDirectiveProcessor.java:962)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:861)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.traverse(MXMLClassDirectiveProcessor.java:831)
at org.apache.flex.compiler.internal.as.codegen.MXMLClassDirectiveProcessor.processMainClassDefinitionNode(MXMLClassDirectiveProcessor.java:653)
at org.apache.flex.compiler.internal.as.codegen.GlobalDirectiveProcessor.declareMXMLDocument(GlobalDirectiveProcessor.java:518)
at org.apache.flex.compiler.internal.as.codegen.DirectiveProcessor.processNode(DirectiveProcessor.java:232)
at org.apache.flex.compiler.internal.as.codegen.DirectiveProcessor.traverse(DirectiveProcessor.java:188)
at org.apache.flex.compiler.internal.as.codegen.ABCGenerator.generate(ABCGenerator.java:122)
at org.apache.flex.compiler.internal.units.MXMLCompilationUnit.handleABCBytesRequest(MXMLCompilationUnit.java:199)
at org.apache.flex.compiler.internal.units.CompilationUnitBase.processABCBytesRequest(CompilationUnitBase.java:866)
at org.apache.flex.compiler.internal.units.CompilationUnitBase.access$300(CompilationUnitBase.java:107)
at org.apache.flex.compiler.internal.units.CompilationUnitBase$4$1.call(CompilationUnitBase.java:309)
at org.apache.flex.compiler.internal.units.CompilationUnitBase$4$1.call(CompilationUnitBase.java:305)
at org.apache.flex.compiler.internal.units.requests.RequestMaker$1.call(RequestMaker.java:228)
at org.apache.flex.compiler.internal.units.requests.RequestMaker$1.call(RequestMaker.java:222)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source) ProductItemRendererMXML.mxml /DataGridExample/src/products line 0 Flex Problem

The MXML custom renderer class was simple:

<js:DataItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
				xmlns:js="library://ns.apache.org/flexjs/basic">
    <fx:Script>
        <![CDATA[
			import org.apache.flex.html.Label;
			import org.apache.flex.html.supportClasses.DataItemRenderer;
		]]>
    </fx:Script>
	<js:Container width="100%" height="100%">
		<js:Label id="output" width="100" text="{data.image}" />
	</js:Container>
</js:DataItemRenderer>