[MCOMPILER-135] Passing multiple parameters to Java 6 annotation processors with javac does not work

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.3.1
• Fix Version/s: 2.4
• Environment: JDK 1.6, Maven 2.2.1, Maven-Compiler-Plugin 2.3.1, Windows
• Assignee: Robert Scholte
• Reporter: Sean Patrick Floyd
• Created: 13/Sep/10 10:13
• Updated: 29/Aug/11 12:47
• Resolved: 29/Aug/11 12:47

Description

I have an annotation processor that supports multiple parameters and I have found that there is no way to set more than one of them at any given time from the Maven Compiler Plugin,

Here's my setup.

 
<plugin>
    <inherited>true</inherited>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-compiler-plugin</artifactId>
    <version>2.3.1</version>
    <configuration>
        <source>1.6</source>
        <target>1.6</target>
        <compilerArgument>-AaddResDir=src/main/webapp -Averbose=true</compilerArgument>
    </configuration>
</plugin>

Javac needs the parameters added as separate Strings

[ ... , "-AaddResDir=src/main/webapp", "-Averbose=true"]

but the Compiler Plugin generates this code:

[ ... , "-AaddResDir=src/main/webapp -Averbose=true"]

which Javac will parse as

key:"addResDir" value="src/main/webapp -Averbose=true"

The map version "<compilerArguments>" is of no help either, because this

<Averbose>true</Averbose>
<AaddResDir>src/main/webapp</AResDir>

will generate the output

[... , "-Averbose", "true", "-AaddResDir", "src/main/webapp"]

while this

<Averbose=true />
<AaddResDir=src/main/webapp />

is not well-formed XML.

Stepping through the compiler argument generation with the debugger I have not found a way to post-process the arguments, so please add a way to support multiple APT parameters because this is a major show-stopper.

Issue Links

• relates to: MCOMPILER-62 Allow multiple options to be passed to compiler for options not supported by the compiler mojo