Issue #165: Place script/argument files in target

With this the arguments and `java.[sh|bat` files will be created in the
build directory (usually `target`), rather than in the output directory
(usually `target/classes`).

Fixes #165

Author: zregvart

plexus-compilers/plexus-compiler-javac/src/main/java/org/codehaus/plexus/compiler/javac/JavacCompiler.java

@@ -559,7 +559,7 @@ protected CompilerResult compileOutOfProcess( CompilerConfiguration config, Stri
 
         try
         {
-            File argumentsFile = createFileWithArguments( args, config.getOutputLocation() );
+            File argumentsFile = createFileWithArguments( args, config.getBuildDirectory() );
             cli.addArguments(
                 new String[]{ "@" + argumentsFile.getCanonicalPath().replace( File.separatorChar, '/' ) } );
 
@@ -595,7 +595,7 @@ protected CompilerResult compileOutOfProcess( CompilerConfiguration config, Stri
         if ( ( getLogger() != null ) && getLogger().isDebugEnabled() )
         {
             File commandLineFile =
-                new File( config.getOutputLocation(), "javac." + ( Os.isFamily( Os.FAMILY_WINDOWS ) ? "bat" : "sh" ) );
+                new File( config.getBuildDirectory(), "javac." + ( Os.isFamily( Os.FAMILY_WINDOWS ) ? "bat" : "sh" ) );
             try
             {
                 FileUtils.fileWrite( commandLineFile.getAbsolutePath(), cli.toString().replaceAll( "'", "" ) );