users@jaxb.java.net

Re: NPE when generating Schema on Windows

From: mraible <matt_at_raibledesigns.com>
Date: Mon, 16 Nov 2009 10:40:33 -0800 (PST)

Fixed by upgrading the plugin's dependencies:

<plugin>
        <groupId>com.sun.tools.jxc.maven2</groupId>
        <artifactId>maven-jaxb-schemagen-plugin</artifactId>
        <version>1.2</version>
        <executions>
                <execution>
                        <phase>process-sources</phase>
                        <goals>
                                <goal>generate</goal>
                        </goals>
                </execution>
        </executions>
        ...
        <dependencies>
                <dependency>
                        <groupId>javax.xml.bind</groupId>
                        <artifactId>jaxb-api</artifactId>
                        <version>2.1</version>
                </dependency>
                <dependency>
                        <groupId>com.sun.xml.bind</groupId>
                        <artifactId>jaxb-impl</artifactId>
                        <version>2.1.12</version>
                </dependency>
                <dependency>
                        <groupId>com.sun.xml.bind</groupId>
                        <artifactId>jaxb-xjc</artifactId>
                        <version>2.1.12</version>
                </dependency>
        </dependencies>
</plugin>

Matt


Matt Raible-3 wrote:
>
> Hello all,
>
> I'm using the following Maven plugin on a project with Maven 2.2.1 and
> Java 6.
>
> <groupId>com.sun.tools.jxc.
> maven2</groupId>
> <artifactId>maven-jaxb-schemagen-plugin</artifactId>
> <version>1.2</version>
> <executions>
> <execution>
> <phase>process-sources</phase>
> <goals>
> <goal>generate</goal>
> </goals>
> </execution>
> </executions>
>
> First of all, what's the difference between this plugin and the Maven
> plugin hosted at Codehaus?
>
> http://mojo.codehaus.org/jaxb2-maven-plugin/index.html
>
> Secondly, I'm seeing the following error after trying to introduce a
> second schema to my project. The first schema is generated from Java
> classes, while the 2nd one is XUL, which I've created some classes to
> map to.
>
> Problem encountered during annotation processing;
> see stacktrace below for more information.
> java.lang.InternalError: Error escaping one of these uris:
> C:\Source\project\services\target\cla
> sses\META-INF\com\company\schema\xul.xsd
> C:\Source\project\services\target\cla
> sses\META-INF\com\company\schema\conversation-definition-1.0.xsd
> at
> com.sun.xml.bind.v2.schemagen.XmlSchemaGenerator.relativize(XmlSchema
> Generator.java:1272)
> at
> com.sun.xml.bind.v2.schemagen.XmlSchemaGenerator$Namespace.writeTo(Xm
> lSchemaGenerator.java:482)
> at
> com.sun.xml.bind.v2.schemagen.XmlSchemaGenerator$Namespace.access$600
> (XmlSchemaGenerator.java:341)
> at
> com.sun.xml.bind.v2.schemagen.XmlSchemaGenerator.write(XmlSchemaGener
> ator.java:322)
> at
> com.sun.tools.xjc.api.impl.j2s.JAXBModelImpl.generateSchema(JAXBModel
> Impl.java:153)
> at
> com.sun.tools.jxc.apt.SchemaGenerator$1.process(SchemaGenerator.java:
> 78)
> at
> com.sun.mirror.apt.AnnotationProcessors$CompositeAnnotationProcessor.
> process(AnnotationProcessors.java:60)
> at com.sun.tools.apt.comp.Apt.main(Apt.java:454)
> at
> com.sun.tools.apt.main.JavaCompiler.compile(JavaCompiler.java:258)
> at com.sun.tools.apt.main.Main.compile(Main.java:1102)
> at com.sun.tools.apt.main.Main.compile(Main.java:964)
> at com.sun.tools.apt.Main.processing(Main.java:95)
> at com.sun.tools.apt.Main.process(Main.java:85)
> at com.sun.tools.apt.Main.process(Main.java:67)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> com.sun.tools.jxc.AptBasedTask$InternalAptAdapter.execute(AptBasedTas
> k.java:61)
> at com.sun.tools.jxc.AptBasedTask.compile(AptBasedTask.java:108)
> at
> com.sun.tools.jxc.maven2.SchemaGenAdapter.execute(SchemaGenAdapter.ja
> va:111)
> at
> com.sun.tools.jxc.maven2.SchemaGenMojo.execute(SchemaGenMojo.java:161
> )
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi
> nManager.java:490)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
> ultLifecycleExecutor.java:694)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLi
> fecycle(DefaultLifecycleExecutor.java:556)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau
> ltLifecycleExecutor.java:535)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan
> dleFailures(DefaultLifecycleExecutor.java:387)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen
> ts(DefaultLifecycleExecutor.java:348)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi
> fecycleExecutor.java:180)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
> at
> org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:6
> 0)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
> java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
> sorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
> at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
> at
> org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
>
> at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
> [INFO]
> ------------------------------------------------------------------------
> [ERROR] FATAL ERROR
> [INFO]
> ------------------------------------------------------------------------
> [INFO] schema generation failed
> [INFO]
> ------------------------------------------------------------------------
> [INFO] Trace
> schema generation failed
> at com.sun.tools.jxc.AptBasedTask.compile(AptBasedTask.java:110)
> at
> com.sun.tools.jxc.maven2.SchemaGenAdapter.execute(SchemaGenAdapter.ja
> va:111)
> at
> com.sun.tools.jxc.maven2.SchemaGenMojo.execute(SchemaGenMojo.java:161
> )
> at
> org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPlugi
> nManager.java:490)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(Defa
> ultLifecycleExecutor.java:694)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLi
> fecycle(DefaultLifecycleExecutor.java:556)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(Defau
> ltLifecycleExecutor.java:535)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHan
> dleFailures(DefaultLifecycleExecutor.java:387)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegmen
> ts(DefaultLifecycleExecutor.java:348)
> at
> org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLi
> fecycleExecutor.java:180)
> at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:328)
> at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
> at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
>
> In the plugin configuration, I reference both XSDs with the following
> (where xul.xsd is located in my src/main/resources folder).
>
> <configuration>
> <includes>
> <include>**/schema/**</include>
> </includes>
> <destdir>
>
> ${project.build.directory}/classes/META-INF/com/company/schema
> </destdir>
> <schemas>
> <schema>
>
> <namespace>http://www.company.com/schema/conversation-definition</namespace>
> <file>conversation-definition-1.0.xsd</file>
> </schema>
> <schema>
>
> <namespace>http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul</namespace>
> <file>xul.xsd</file>
> </schema>
> </schemas>
> </configuration>
>
> The strange thing is everyone works fine on Linux and OS X. But it
> fails with the exception above when run on Windows. Any ideas?
>
> Thanks,
>
> Matt
>
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