java.lang.IllegalStateException: Internal error: Expected ParagraphType on stack, found java.lang.Object

Details

Type: Bug
Status: Closed
Priority: Major
Resolution: Fixed
Affects Version/s: JiBX 1.1.3
Fix Version/s: None
Component/s: core
Labels:
None
Environment:
any

Number of attachments :
1

Description

Stack trace follows; binding file below (I will also provide a self-contained, zipped up sample that can be used to reproduce this easily):

Error running binding compiler

- - Error during code generation for file 'binding.xml' - please enter a bug report for this error in Jira if the problem is not listed as fixed on the online status page ***

java.lang.IllegalStateException: Internal error: Expected ParagraphType on stack, found java.lang.Object
full stack:
0: java.lang.Object
1: org.jibx.runtime.impl.UnmarshallingContext

at org.jibx.binding.classes.MethodBuilder.verifyCompatible(MethodBuilder.java:420)
at org.jibx.binding.classes.MethodBuilder.verifyCallStack(MethodBuilder.java:537)
at org.jibx.binding.classes.MethodBuilder.appendCallVirtual(MethodBuilder.java:894)
at org.jibx.binding.def.ObjectBinding.genUnmarshalCall(ObjectBinding.java:579)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:834)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.NestedCollection.genContentUnmarshal(NestedCollection.java:167)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.NestedCollection.genContentUnmarshal(NestedCollection.java:167)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.NestedCollection.genContentUnmarshal(NestedCollection.java:167)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:252)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111)
at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:252)
at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798)
at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943)
at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315)
at org.jibx.binding.def.MappingDefinition.generateCode(MappingDefinition.java:599)
at org.jibx.binding.def.DefinitionContext.generateCode(DefinitionContext.java:669)
at org.jibx.binding.def.BindingDefinition.generateCode(BindingDefinition.java:661)
at org.jibx.binding.Compile.compile(Compile.java:305)
at org.jibx.binding.Compile.main(Compile.java:385)

Binding file:

</structure>
</collection>
</structure>

</mapping>

</binding>

... I can't see anything obviously wrong with this binding file, either - I'm presently seeking a workaround for this specific issue (this is the last issue standing in my way from upgrading from beta3c to 1.1, at long, long last).

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Attachments

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tvly_jibx.zip

13/Feb/07 4:58 PM

4 kB

Joshua Davies
HotelAvailRSMapper.java 1 kB

ParagraphType.java 0.9 kB

RoomRateType.java 3 kB

RoomStayType.java 8 kB

build.sh 0.3 kB

go.sh 0.2 kB

binding.xml 1 kB

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tvly_jibx.zip

13/Feb/07 4:58 PM

4 kB

Joshua Davies

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Joshua Davies added a comment - 13/Feb/07 5:00 PM

To reproduce, just unzip the attached "tvly_jibx.zip" file, modify the "JIBX_PATH" in the build.sh script to point to a jibx 1.1.3 installation, and run ./build.sh. You should see the same stack trace. This appears to happen in every 1.1.x version, but does not occur in rc1 or rc0 (or before that).

Show

Joshua Davies added a comment - 13/Feb/07 5:00 PM To reproduce, just unzip the attached "tvly_jibx.zip" file, modify the "JIBX_PATH" in the build.sh script to point to a jibx 1.1.3 installation, and run ./build.sh. You should see the same stack trace. This appears to happen in every 1.1.x version, but does not occur in rc1 or rc0 (or before that).

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Joshua Davies added a comment - 08/Mar/07 2:22 PM

I was able to pare the binding that reproduces the error down a little bit, so the stack trace isn't quite so large:

The class files in the attachment are the same.

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Joshua Davies added a comment - 08/Mar/07 2:22 PM I was able to pare the binding that reproduces the error down a little bit, so the stack trace isn't quite so large: <binding direction="both"> <mapping name="RoomRate" class="RoomRateType" > <structure name="Features" usage="optional" test-method="hasRoomPromotions" > <collection field="roomPromotions" usage="optional"> <structure name="Feature" usage="optional"> <structure name="Description" usage="optional" type="ParagraphType"> <value style="element" name="Text" field="text" usage="optional"/> </structure> </structure> </collection> </structure> </mapping> </binding> The class files in the attachment are the same.

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Joshua Davies added a comment - 08/Mar/07 2:31 PM

And the corresponding stack trace (essentially the same, but with slightly less clutter):

- - Error during code generation for file 'binding1.xml' - please enter a bug report for this error in Jira if the problem is not listed as fixed on the online status page ***

java.lang.IllegalStateException: Internal error: Expected ParagraphType on stack, found java.lang.Object
full stack:
0: java.lang.Object
1: org.jibx.runtime.impl.UnmarshallingContext

Show

Joshua Davies added a comment - 08/Mar/07 2:31 PM And the corresponding stack trace (essentially the same, but with slightly less clutter): Error during code generation for file 'binding1.xml' - please enter a bug report for this error in Jira if the problem is not listed as fixed on the online status page *** java.lang.IllegalStateException: Internal error: Expected ParagraphType on stack, found java.lang.Object full stack: 0: java.lang.Object 1: org.jibx.runtime.impl.UnmarshallingContext at org.jibx.binding.classes.MethodBuilder.verifyCompatible(MethodBuilder.java:420) at org.jibx.binding.classes.MethodBuilder.verifyCallStack(MethodBuilder.java:537) at org.jibx.binding.classes.MethodBuilder.appendCallVirtual(MethodBuilder.java:894) at org.jibx.binding.def.ObjectBinding.genUnmarshalCall(ObjectBinding.java:579) at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:834) at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943) at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256) at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315) at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111) at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190) at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798) at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943) at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256) at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315) at org.jibx.binding.def.NestedCollection.genContentUnmarshal(NestedCollection.java:167) at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798) at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943) at org.jibx.binding.def.ComponentProperty.genContentUnmarshal(ComponentProperty.java:256) at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190) at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315) at org.jibx.binding.def.PassThroughComponent.genContentUnmarshal(PassThroughComponent.java:111) at org.jibx.binding.def.NestedStructure.genContentUnmarshal(NestedStructure.java:190) at org.jibx.binding.def.ObjectBinding.genUnmarshalContentCall(ObjectBinding.java:798) at org.jibx.binding.def.ObjectBinding.genContentUnmarshal(ObjectBinding.java:943) at org.jibx.binding.def.ElementWrapper.genContentUnmarshal(ElementWrapper.java:315) at org.jibx.binding.def.MappingDefinition.generateCode(MappingDefinition.java:599) at org.jibx.binding.def.DefinitionContext.generateCode(DefinitionContext.java:669) at org.jibx.binding.def.BindingDefinition.generateCode(BindingDefinition.java:661) at org.jibx.binding.Compile.compile(Compile.java:305) at org.jibx.binding.Compile.main(Compile.java:385)

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Joshua Davies added a comment - 08/Mar/07 4:46 PM

After playing around with this a little, I found that if I move the

element up above the collection element, it compiles correctly... I believe that this doesn't change the semantics, so I might have a workaround... although I'd still like to know what's triggering the bug.

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Joshua Davies added a comment - 08/Mar/07 4:46 PM After playing around with this a little, I found that if I move the <structure name="Feature" usage="optional"> element up above the collection element, it compiles correctly... I believe that this doesn't change the semantics, so I might have a workaround... although I'd still like to know what's triggering the bug.

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Joshua Davies added a comment - 08/Mar/07 4:49 PM

Well, no, I take that back - that does change the semantics from:

<Feature>
<Description>Hotel promo 1 goes here</Description>
</Feature>
<Feature>
<Description>Hotel promo 2 goes here</Description>
</Feature>

to:

<Feature>
<Description>Hotel promo 1 goes here</Description>
<Description>Hotel promo 2 goes here</Description>
</Feature>

which would make a difference.

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Joshua Davies added a comment - 08/Mar/07 4:49 PM Well, no, I take that back - that does change the semantics from: <Feature> <Description>Hotel promo 1 goes here</Description> </Feature> <Feature> <Description>Hotel promo 2 goes here</Description> </Feature> to: <Feature> <Description>Hotel promo 1 goes here</Description> <Description>Hotel promo 2 goes here</Description> </Feature> which would make a difference.

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Dennis Sosnoski added a comment - 13/May/07 5:51 AM

The problem here is the nested <structure>s within the <collection>, with the type only specified on the inner one. Changing this to:

compiles fine, though I haven't tried actually testing the code (since you didn't include the test program or data). I'll see about adding a check to catch this during binding validation.

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Dennis Sosnoski added a comment - 13/May/07 5:51 AM The problem here is the nested <structure>s within the <collection>, with the type only specified on the inner one. Changing this to: <collection field="roomPromotions" usage="optional"> <structure name="Feature" type="ParagraphType" usage="optional"> <structure name="Description" usage="optional"> <value style="element" name="Text" field="text" usage="optional"/> </structure> </structure> </collection> compiles fine, though I haven't tried actually testing the code (since you didn't include the test program or data). I'll see about adding a check to catch this during binding validation.

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Dennis Sosnoski added a comment - 13/May/07 6:15 AM

Added validation check, which now gives an error on this binding:

Error: Type must be specified on outermost <structure> element within collection; on structure element at (line 18, col 60, in binding.xml)

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Dennis Sosnoski added a comment - 13/May/07 6:15 AM Added validation check, which now gives an error on this binding: Error: Type must be specified on outermost <structure> element within collection; on structure element at (line 18, col 60, in binding.xml)

Dennis Sosnoski made changes - 13/May/07 6:15 AM

Field	Original Value	New Value
Status	Open [ 1 ]	Resolved [ 5 ]
Resolution		Fixed [ 1 ]
Assignee		Dennis Sosnoski [ dsosnoski ]

Dennis Sosnoski made changes - 23/May/07 5:36 AM

Status

Resolved [ 5 ]

Closed [ 6 ]

People

Assignee:

Dennis Sosnoski

Reporter:

Joshua Davies

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Dates

Created:

13/Feb/07 4:58 PM

Updated:

23/May/07 5:36 AM

Resolved:

13/May/07 6:15 AM