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https://jira.codehaus.org/browse/MCOMPILER-134?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=292571#comment-292571
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Jesse Glick commented on MCOMPILER-134:
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Ideally you could define a {{<dependency>}} with {{<scope>processor</scope>}},
but Maven core seems to hardcode permitted scopes. The next best thing would be
to the ability to specify dependency-like artifacts in the compiler plugin
configuration.
> add support for jdk 6 javac -processorpath parameter
> ----------------------------------------------------
>
> Key: MCOMPILER-134
> URL: https://jira.codehaus.org/browse/MCOMPILER-134
> Project: Maven 2.x Compiler Plugin
> Issue Type: New Feature
> Affects Versions: 2.3.2
> Reporter: Jürgen
> Priority: Minor
> Attachments: maven-compiler-plugin-2.3.3-SNAPSHOT.jar,
> maven-compiler-plugin-2.3.3-SNAPSHOT.jar, ProcCompilerMojo.java
>
>
> add support for annotation processing javac option -processorpath
> cf.
> http://download.oracle.com/javase/6/docs/technotes/tools/windows/javac.html#processing
> while not supported, annotation processor classes have to be supplied via
> compile classpath.
> annotation processor dependencies (e.g. database, xml processing, ...) might
> not be wanted as project dependencies or event be in conflict with them.
> as a workaround I have attached new ProcCompilerMojo, where I tried to
> implement processorpath support
> 1) via a new configuration option: dependency resolution is done with bits of
> code I copied from other maven classes like ProjectBuilder, ...
> {code}
> <configuration>
> <proc>only</proc>
> <processorpath>
> <dependency>
> <groupId>org.slf4j</groupId>
> <artifactId>slf4j-jdk14</artifactId>
> <version>1.5.6</version>
> </dependency>
> <dependency>
> <groupId>com.example</groupId>
> <artifactId>annoproc</artifactId>
> <version>1.0.0</version>
> </dependency>
> </processorpath>
> </configuration>
> {code}
> 2) (unused) via plugin dependencies: I basically make use of ProcCompilerMojo
> classloader urls. This variant is quite "dirty". it adds unnecessary maven
> plugin jars to annotation processor classpath and unnecessary annotation
> processor jars to compiler-plugin classpath
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