unable to pass in javac -J option

because of MCOMPILER-109, l10n-ed javac warning messages will be regarded as error, so I want to pass user language configuration to javac, like this:

javac ... -J-Duser.language=en_us

this works well on pure javac command line, but when I configure this for maven-compiler-plugin:

<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.1</version>
<configuration>
<fork>true</fork>
<source>1.5</source>
<target>1.5</target>
<compilerArgument>-J-Duser.language=en_us</compilerArgument>
</configuration>
</plugin>

I got：

[DEBUG] Configuring mojo 'org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile' with basic configurator -->
[DEBUG] (f) basedir = D:\workspace\test
[DEBUG] (f) buildDirectory = D:\workspace\test\target
[DEBUG] (f) classpathElements = [D:\workspace\test\target\classes]
[DEBUG] (f) compileSourceRoots = [D:\workspace\test\src\main\java]
[DEBUG] (f) compilerArgument = -J-Duser.language=en_us
[DEBUG] (f) compilerId = javac
[DEBUG] (f) debug = true
[DEBUG] (f) failOnError = true
[DEBUG] (f) fork = true
[DEBUG] (f) generatedSourcesDirectory = D:\workspace\test\target\generated-sources\annotations
[DEBUG] (f) optimize = false
[DEBUG] (f) outputDirectory = D:\workspace\test\target\classes
[DEBUG] (f) outputFileName = test-0.0.1-SNAPSHOT
[DEBUG] (f) projectArtifact = com.juvenxu:test:jar:0.0.1-SNAPSHOT
[DEBUG] (f) session = org.apache.maven.execution.MavenSession@11d2572
[DEBUG] (f) showDeprecation = false
[DEBUG] (f) showWarnings = false
[DEBUG] (f) source = 1.5
[DEBUG] (f) staleMillis = 0
[DEBUG] (f) target = 1.5
[DEBUG] (f) verbose = false
[DEBUG] – end configuration –
[DEBUG] Using compiler 'javac'.
[DEBUG] Source directories: [D:\workspace\test\src\main\java]
[DEBUG] Classpath: [D:\workspace\test\target\classes]
[DEBUG] Output directory: D:\workspace\test\target\classes
[DEBUG] Classpath:
[DEBUG] D:\workspace\test\target\classes
[DEBUG] Source roots:
[DEBUG] D:\workspace\test\src\main\java
[DEBUG] Command line options:
[DEBUG] -d D:\workspace\test\target\classes -classpath D:\workspace\test\target\classes; -sourcepath D:\workspace\test\src\main\java; D:\workspace\test\src\main\java\com\juvenxu\test\Test.java -g -nowarn -target 1.5 -source 1.5 -J-Duser.language=en_us
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 1 source file to D:\workspace\test\target\classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] Failure executing javac, but could not parse the error:
javac: 无效的标志： -J-Duser.language=en_us
用法: javac <options> <source files>
-help 用于列出可能的选项

[INFO] 1error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.451s
[INFO] Finished at: Wed May 26 17:29:06 CST 2010
[INFO] Final Memory: 2M/5M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project test: Compilation failure
Failure executing javac, but could not parse the error:
javac: 无效的标志： -J-Duser.language=en_us
用法: javac <options> <source files>
-help 用于列出可能的选项
-> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.1:compile (default-compile) on project test: Compilation failure
Failure executing javac, but could not parse the error:
javac: 无效的标志： -J-Duser.language=en_us
用法: javac <options> <source files>
-help 用于列出可能的选项

at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:581)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:324)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:247)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:104)
at org.apache.maven.cli.MavenCli.execute(MavenCli.java:427)
at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:157)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:121)
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.CompilationFailureException: Compilation failure
Failure executing javac, but could not parse the error:
javac: 无效的标志： -J-Duser.language=en_us
用法: javac <options> <source files>
-help 用于列出可能的选项

at org.apache.maven.plugin.AbstractCompilerMojo.execute(AbstractCompilerMojo.java:656)
at org.apache.maven.plugin.CompilerMojo.execute(CompilerMojo.java:128)
at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:105)
at org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:577)
... 14 more
[ERROR]