Null Pointer Exception in MultiplicityCounterNG

[rsperlazza]

Using this xsd:
http://www.omg.org/spec/ReqIF/20110401/reqif.xsd

I get the following Null Pointer Exception:

Exception in thread "main" java.lang.NullPointerException
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.particle(MultiplicityCounterNG.java:27)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroup(MultiplicityCounterNG.java:52)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(MultiplicityCounterNG.java:43)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(MultiplicityCounterNG.java:16)
at com.sun.xml.xsom.impl.ModelGroupDeclImpl.apply(ModelGroupDeclImpl.java:89)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.particle(MultiplicityCounterNG.java:24)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroup(MultiplicityCounterNG.java:52)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(MultiplicityCounterNG.java:43)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(MultiplicityCounterNG.java:16)
at com.sun.xml.xsom.impl.ModelGroupDeclImpl.apply(ModelGroupDeclImpl.java:89)
at org.hisrc.jsonix.xml.xsom.ParticleMultiplicityCounter.particle(ParticleMultiplicityCounter.java:26)
at org.hisrc.jsonix.xml.xsom.ParticleMultiplicityCounter.particle(ParticleMultiplicityCounter.java:12)
at com.sun.xml.xsom.impl.ParticleImpl.apply(ParticleImpl.java:111)
at org.hisrc.xml.xsom.XSFunctionApplier.apply(XSFunctionApplier.java:26)
at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.createPropertyInfoOptions(PropertyInfoVisitor.java:59)
at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.visitElementRefsPropertyInfo(PropertyInfoVisitor.java:254)
at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.visitElementRefsPropertyInfo(PropertyInfoVisitor.java:38)
at org.jvnet.jaxb2_commons.xml.bind.model.concrete.CMElementRefsPropertyInfo.acceptPropertyInfoVisitor(CMElementRefsPropertyInfo.java:68)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compilePropertyInfos(MappingCompiler.java:262)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compileClassInfo(MappingCompiler.java:232)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compileClassInfos(MappingCompiler.java:182)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compile(MappingCompiler.java:155)
at org.hisrc.jsonix.compilation.mapping.ModuleCompiler.compile(ModuleCompiler.java:54)
at org.hisrc.jsonix.compilation.mapping.ModulesCompiler.compile(ModulesCompiler.java:29)
at org.hisrc.jsonix.execution.JsonixInvoker.execute(JsonixInvoker.java:64)
at org.hisrc.jsonix.JsonixMain.execute(JsonixMain.java:110)
at org.hisrc.jsonix.JsonixMain.main(JsonixMain.java:77)

Using a modified XSD that works in JAXB I still get the same exception:
http://pastebin.com/G4reNMBu

[highsource]

What's the license for the schema?

[rsperlazza]

It's open source from the same group that manages UML.

The license to the specification is here:
http://www.omg.org/spec/ReqIF/1.1/PDF/

[highsource]

Ok, so they won't sue me if I use it as a sample.

[rsperlazza]

Nope

[highsource]

I can't do thorough testing at the moment, but here's a trivial fix, hope it works.

[rsperlazza]

Made with maven, now we get this error:

Exception in thread "main" java.lang.NullPointerException
at com.sun.tools.xjc.model.Multiplicity.multiply(Multiplicity.java:190)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.particle(Multiplicity
CounterNG.java:34)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroup(Multiplici
tyCounterNG.java:52)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(Multip
licityCounterNG.java:43)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(Multip
licityCounterNG.java:15)
at com.sun.xml.xsom.impl.ModelGroupDeclImpl.apply(ModelGroupDeclImpl.jav
a:89)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.particle(Multiplicity
CounterNG.java:23)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroup(Multiplici
tyCounterNG.java:52)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(Multip
licityCounterNG.java:43)
at org.hisrc.jsonix.xml.xsom.MultiplicityCounterNG.modelGroupDecl(Multip
licityCounterNG.java:15)
at com.sun.xml.xsom.impl.ModelGroupDeclImpl.apply(ModelGroupDeclImpl.jav
a:89)
at org.hisrc.jsonix.xml.xsom.ParticleMultiplicityCounter.particle(Partic
leMultiplicityCounter.java:26)
at org.hisrc.jsonix.xml.xsom.ParticleMultiplicityCounter.particle(Partic
leMultiplicityCounter.java:12)
at com.sun.xml.xsom.impl.ParticleImpl.apply(ParticleImpl.java:111)
at org.hisrc.xml.xsom.XSFunctionApplier.apply(XSFunctionApplier.java:26)

    at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.createProper

tyInfoOptions(PropertyInfoVisitor.java:59)
at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.visitElement
RefsPropertyInfo(PropertyInfoVisitor.java:254)
at org.hisrc.jsonix.compilation.mapping.PropertyInfoVisitor.visitElement
RefsPropertyInfo(PropertyInfoVisitor.java:38)
at org.jvnet.jaxb2_commons.xml.bind.model.concrete.CMElementRefsProperty
Info.acceptPropertyInfoVisitor(CMElementRefsPropertyInfo.java:68)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compilePropertyI
nfos(MappingCompiler.java:262)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compileClassInfo
(MappingCompiler.java:232)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compileClassInfo
s(MappingCompiler.java:182)
at org.hisrc.jsonix.compilation.mapping.MappingCompiler.compile(MappingC
ompiler.java:155)
at org.hisrc.jsonix.compilation.mapping.ModuleCompiler.compile(ModuleCom
piler.java:54)
at org.hisrc.jsonix.compilation.mapping.ModulesCompiler.compile(ModulesC
ompiler.java:29)
at org.hisrc.jsonix.execution.JsonixInvoker.execute(JsonixInvoker.java:6
4)
at org.hisrc.jsonix.JsonixMain.execute(JsonixMain.java:110)
at org.hisrc.jsonix.JsonixMain.main(JsonixMain.java:77)

Any help would be appreciated.

[highsource]

Ok, good (or bad, actually). That was basically a blind shot, and I missed.

To address this, I'll have to make a reproducible test case to be able to debug it. I'm a bit "out of the normal life" at the moment, have a pretty bad internet connection. This means it will take me some time to create a reproducible test case.

You've a Maven build running - so If you want to give it a try on your own, try to fix NPEs. This whole multiplicity thing is just to determine min/max occurences for elements, it is pur metadata not used for unmarshalling or marshalling. So it is quite safe to return null for the cases when min/max occurs can't get reliably detected.

The NPEs which you get at the moment are programming errors.

[rsperlazza]

I added the null check and got another exception. When you get a chance, please create a reproducible test case and debug.

Thanks for all your help so far.

[chrisritter]

Any luck with ReqIF parsing in Jsonix?