[jibx-devs] [jira] (JIBX-474) NullPointerException in CodeGen for <xs:list itemType="xs:int" />

[Klaus C. (JIRA) <ji...@co...>]

Klaus Claszen created JIBX-474:
----------------------------------

             Summary: NullPointerException in CodeGen for <xs:list itemType="xs:int" />
                 Key: JIBX-474
                 URL: https://jira.codehaus.org/browse/JIBX-474
             Project: JiBX
          Issue Type: Bug
          Components: CodeGen
    Affects Versions: JiBX 1.2.3
         Environment: Windows 7, maven 3.0.4, JiBX 1.2.3
            Reporter: Klaus Claszen
         Attachments: jibx-list-codegen-test.zip

I tried to generate code for the following XSD schema using the jibx-maven-plugin version 1.2.3:

{code}
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:tns="http://foo.bar"
	elementFormDefault="qualified" targetNamespace="http://foo.bar">

	<xs:simpleType name="idList">
		<xs:list itemType="xs:int" />
	</xs:simpleType>

	<xs:complexType name="request">
		<xs:sequence>
			<xs:element name="time" type="xs:dateTime" minOccurs="0"
				maxOccurs="1" />
		</xs:sequence>
		<xs:attribute name="knownIds" type="tns:idList" />
	</xs:complexType>

</xs:schema>
{code}

this results in the following error message

{code}
[ERROR] Failed to execute goal org.jibx:jibx-maven-plugin:1.2.3:schema-codegen (generate-java-code-from-schema) on proje
ct jibx-list-codegen-test: null: MojoExecutionException: NullPointerException -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.jibx:jibx-maven-plugin:1.2.3:schema-c
odegen (generate-java-code-from-schema) on project jibx-list-codegen-test: null
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
        at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
        at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
        at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
        at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
        at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
        at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
        at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
Caused by: org.apache.maven.plugin.MojoExecutionException
        at org.jibx.maven.AbstractCodeGenMojo.execute(AbstractCodeGenMojo.java:274)
        at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
        at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
        ... 19 more
Caused by: java.lang.NullPointerException
        at org.jibx.schema.codegen.SourceBuilder.finish(SourceBuilder.java:327)
        at org.jibx.schema.codegen.PackageHolder.generate(PackageHolder.java:211)
        at org.jibx.schema.codegen.PackageHolder.generate(PackageHolder.java:227)
        at org.jibx.schema.codegen.CodeGen.buildDataModel(CodeGen.java:1572)
        at org.jibx.schema.codegen.CodeGen.generate(CodeGen.java:1779)
        at org.jibx.schema.codegen.CodeGen.main(CodeGen.java:2202)
        at org.jibx.maven.AbstractCodeGenMojo.execute(AbstractCodeGenMojo.java:271)
        ... 21 more
{code}

If I change the xs:list itemType to string ({{<xs:list itemType="xs:string" />}}) everything works well.

If I use other types (e.g. {{"xs:double"}}) I get an {{"Internal error - invalid list type"}} although the type seems to be supported (I looked at [BuiltinFormats.java|http://grepcode.com/file_/repo1.maven.org/maven2/org.jibx/jibx-bind/1.2.3/org/jibx/binding/model/BuiltinFormats.java/?v=source] - not sure if this is the right place).

So my main issue is to get {{<xs:list itemType="xs:int" />}} working in code generation but I also wonder what list types are supported.

Thanks for any help!

Regards
  Klaus

PS: Maven test project included as attachment.

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