Re: [aspectj-users] Help: annotation introduction not working

[Andy Clement <andrew.clement@xxxxxxxxx>]

I'm trying to recreate this locally but not having much luck.  The
annotations are always there for me.  You could try turning off
pipeline compilation in case that is affecting things - put
X="-Xset:pipelineCompilation=false" in your iajc command.  But I'm not
hopeful that will address it as you are doing binary weaving.  You are
on a recent AspectJ I take it?

Andy

2009/8/24 Matthew Adams <matthew@xxxxxxxxxxxxxxx>
>
> I'm using the ant task iajc to achieve some binary weaving of .class
> files, where I want to introduce not only fields and methods but also
> class-level annotations.
>
> The iajc compiler is emitting messages that say that it is adding the
> annotations, but when I decompile or use reflection against the woven
> classes, there are none on the class.
>
> Anyone know why this might be happening?
>
> Here is my iajc invocation (run from within maven-antrun-plugin):
> <iajc destDir="${project.build.outputDirectory}" source="1.6"
>        target="1.6" debug="true" preserveAllLocals="true"
>        showWeaveInfo="true" verbose="true" classpathref="cp" noimporterror="false">
>        <sourceroots>
>                <pathelement location="${project.build.sourceDirectory}" />
>                <pathelement location="${project.build.sourceDirectory}/../aspect" />
>        </sourceroots>
>        <inpath>
>                <pathelement location="${resource.entity.source.classes.path}" />
>        </inpath>
> </iajc>
>
> Above, classpathref cp evaluates to a path that is
> maven.compile.classpath, and resource.entity.source.classes.path is
> the directory containing the .class files that I'm trying to weave.
>
> The ajc compiler says (package names abbreviated with "org...." to
> protect the innocent):
>     [iajc] ajc [-source, 1.6, -verbose, -target, 1.6, -g, -d,
> C:\dev\ECO\svn\trunk\case\case-rest-resource-entity\target\classes,
> -showWeaveInfo, -preserveAllLocals, -classpath, ...
>     ...
>     [iajc] info Pipelining compilation
>     ...
>     [iajc] info weaver operating in reweavable mode.  Need to verify
> any required types exist.
>     ...
>     [iajc] weaveinfo 'org.....rest.entity.Person' (Person.java) is
> annotated with @XmlRootElement type annotation from
> 'org.....rest.entity.aspects.RestResourceEntityMixin'
> (RestResourceEntityMixin.aj:14)
>     [iajc] weaveinfo 'org.....rest.entity.Person' (Person.java) is
> annotated with @Generated type annotation from
> 'org.....rest.entity.aspects.RestResourceEntityMixin'
> (RestResourceEntityMixin.aj:13)
>     [iajc] weaveinfo 'org.....rest.entity.User' (User.java) is
> annotated with @XmlRootElement type annotation from
> 'org.....rest.entity.aspects.RestResourceEntityMixin'
> (RestResourceEntityMixin.aj:14)
>     [iajc] weaveinfo 'org.....rest.entity.User' (User.java) is
> annotated with @Generated type annotation from
> 'org.....rest.entity.aspects.RestResourceEntityMixin'
> (RestResourceEntityMixin.aj:13)
>
> Below is the aspect that's being applied.  Note interestingly that
> while the @Generated and @XmlRootElements don't appear in the final
> woven .class file, the introduced fields and methods actually do show
> up.
>
> import org.....rest.entity.annotations.Generated;
> import javax.xml.bind.annotation.XmlRootElement;
>
> public aspect RestResourceEntityMixin {
>
>        public static interface Introduced {}
>
>        declare @type: (org.....rest.entity.*) : @Generated;
>        declare @type: (org.....rest.entity.*) : @XmlRootElement;
>
>        declare parents: (@Generated *) implements Introduced;
>
>        private String Introduced.etag;
>        private String Introduced.href;
>
>        public String Introduced.getEtag() {
>                return etag;
>        }
>        public void Introduced.setEtag(String etag) {
>                this.etag = etag;
>        }
>
>        public String Introduced.getHref() {
>                return href;
>        }
>        public void Introduced.setHref(String href) {
>                this.href = href;
>        }
> }
>
> Can anyone help?
>
> Thanks,
> Matthew
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