fix for scala-library.jar not being on the classpath for javac

sbt/src/main/scala/sbt/Compile.scala

@@ -78,7 +78,8 @@ final class Compile(maximumErrors: Int, compiler: AnalyzingCompiler, analysisCal
 	}
 	protected def processJava(sources: Set[File], classpath: Set[File], outputDirectory: File, options: Seq[String], log: Logger)
 	{
-		val arguments = (new CompilerArguments(compiler.scalaInstance, false, compiler.compilerOnClasspath))(sources, classpath, outputDirectory, options)
+		val augmentedClasspath = if(compiler.autoBootClasspath) classpath + compiler.scalaInstance.libraryJar else classpath
+		val arguments = (new CompilerArguments(compiler.scalaInstance, false, compiler.compilerOnClasspath))(sources, augmentedClasspath, outputDirectory, options)
 		log.debug("Calling 'javac' with arguments:\n\t" + arguments.mkString("\n\t"))
 		def javac(argFile: File) = Process("javac", ("@" + normalizeSlash(argFile.getAbsolutePath)) :: Nil) ! log
 		val code = withArgumentFile(arguments)(javac)

sbt/src/sbt-test/java/scala-library/project/build.properties

@@ -0,0 +1,3 @@
+project.organization=empty
+project.name=Java Test
+project.version=1.0

sbt/src/sbt-test/java/scala-library/src/main/java/test/R.java

@@ -0,0 +1,6 @@
+package test;
+
+public final class R {
+   public static final int y = 4;
+   public static int x(scala.ScalaObject s) { return 3; }
+}

sbt/src/sbt-test/java/scala-library/test

@@ -0,0 +1 @@
+> compile