[jibx-users] FW: NullPointerException when running binding compiler

[Anurag K. <anu...@ba...>]

Hi -

 

I'm trying to compile my object which has a superclass that implements
interfaces. I've tried running both the command as well as Ant options but
the error remains the same. The structure of my hierarchy is 

 

1.	AbstractClass A implements Interface
2.	Class B extends A implements Serializable
3.	Both classes are in different packages.
4.	I can run the compiler on the base class and it works fine. The same
works fine for the subclass if I remove the inheritance [extends] from the
subclass.

 

I've tried the various extension tricks mentioned on the site but get the
same stack trace. My binding.xml is as below

 

<?xml version="1.0" encoding="UTF-8"?>

<binding>

<!--<mapping class="com.ClassA" abstract="true"

  type-name="A">

    <value name="creationDate" field="creationDate" usage="required"/>

    ...

  </mapping>-->

  <include path="bindingExt.xml"/> // moved the commented code above to a
different bindingExt.xml. Doesn't work even if I remove the comments and the


  <mapping name="test"             // <include> tag.

  class="com.vo.ClassB"

  extends="com.ClassA">  

      <structure map-as="A"/>  

    <value name="name" field="name" usage="required"/>

    ...

  </mapping>

</binding>

 

Here is the stack trace: Can someone point me to what am I doing wrong here.

 

[bind] Running binding compiler version jibx_1_1_6a

     [bind] Error running binding compiler

     [bind] java.lang.NullPointerException

     [bind] at
org.jibx.binding.model.ClassHierarchyContext.accumulateInterfaces(ClassHiera
rchyContext.java:88)

     [bind] at
org.jibx.binding.model.ClassHierarchyContext.accumulateInterfaces(ClassHiera
rchyContext.java:94)

     [bind] at
org.jibx.binding.model.ClassHierarchyContext.addTypedComponent(ClassHierarch
yContext.java:116)

     [bind] at
org.jibx.binding.model.DefinitionContext.addTemplate(DefinitionContext.java:
575)

     [bind] at
org.jibx.binding.model.RegistrationVisitor.visit(RegistrationVisitor.java:17
6)

     [bind] at
org.jibx.binding.model.TreeContext.tourTree(TreeContext.java:171)

     [bind] at
org.jibx.binding.model.TreeContext.tourTree(TreeContext.java:232)

     [bind] at
org.jibx.binding.model.RegistrationVisitor.visitTree(RegistrationVisitor.jav
a:110)

     [bind] at
org.jibx.binding.model.BindingElement.runValidation(BindingElement.java:734)

     [bind] at
org.jibx.binding.model.BindingElement.validateBinding(BindingElement.java:79
9)

     [bind] at org.jibx.binding.Utility.validateBinding(Utility.java:223)

     [bind] at org.jibx.binding.Utility.loadBinding(Utility.java:264)

     [bind] at org.jibx.binding.Utility.loadFileBinding(Utility.java:408)

     [bind] at org.jibx.binding.Compile.compile(Compile.java:296)

     [bind] at
org.jibx.binding.ant.CompileTask.execute(CompileTask.java:248)

     [bind] at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:275)

     [bind] at org.apache.tools.ant.Task.perform(Task.java:364)

     [bind] at org.apache.tools.ant.Target.execute(Target.java:341)

     [bind] at
org.apache.tools.ant.helper.ProjectHelper2.parse(ProjectHelper2.java:142)

     [bind] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.parseBuildFile(Inte
rnalAntRunner.java:191)

     [bind] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.run(InternalAntRunn
er.java:400)

     [bind] at
org.eclipse.ant.internal.ui.antsupport.InternalAntRunner.main(InternalAntRun
ner.java:137)

 

Since I'm new to JIBX I don't have an idea what exactly is going wrong.
Another thing is that JIBX fails to find classes that are included as
dependent projects when I run the compile option.

 

Thanks & Regards,

 

Anurag Khanna