Compilation with analysis independent of Scala version of sbt.

Basic test for this.

launch/interface/src/main/java/xsbti/Exit.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 public interface Exit extends MainResult
 {
 	public int code();

launch/interface/src/main/java/xsbti/Launcher.java

@@ -0,0 +1,21 @@
+package xsbti;
+
+import java.io.File;
+
+public interface Launcher extends ScalaProvider, SbtProvider
+{
+	public static final int InterfaceVersion = 1;
+
+	public void boot(String[] args);
+	public MainResult checkAndLoad(String[] args);
+	public MainResult load(String[] args);
+	public MainResult load(String[] args, String useSbtVersion, String mainClassName, String definitionScalaVersion);
+	public ClassLoader update(String scalaVersion, String sbtVersion);
+	public MainResult run(ClassLoader sbtLoader, String mainClassName, SbtConfiguration configuration);
+
+	public File ProjectDirectory();
+	public File BootDirectory();
+	public File PropertiesFile();
+
+	public Launcher launcher(File base, String mainClassName);
+}

launch/interface/src/main/java/xsbti/MainResult.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 
 public interface MainResult {}
 

launch/interface/src/main/java/xsbti/Reboot.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 public interface Reboot extends MainResult
 {
 	public String[] arguments();

launch/interface/src/main/java/xsbti/SbtConfiguration.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 
 public interface SbtConfiguration
 {

launch/interface/src/main/java/xsbti/SbtMain.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 
 public interface SbtMain
 {

launch/interface/src/main/java/xsbti/SbtProvider.java

@@ -0,0 +1,12 @@
+package xsbti;
+
+import java.io.File;
+
+public interface SbtProvider
+{
+	public ClassLoader createSbtLoader(String sbtVersion, String scalaVersion);
+	public ClassLoader createSbtLoader(String sbtVersion, String scalaVersion, ClassLoader parentLoader);
+
+	public File getSbtHome(String sbtVersion, String scalaVersion);
+	public File componentLocation(String sbtVersion, String id, String scalaVersion);
+}

launch/interface/src/main/java/xsbti/ScalaProvider.java

@@ -1,4 +1,4 @@
-package xsbti.boot;
+package xsbti;
 
 import java.io.File;
 

launch/interface/src/main/java/xsbti/boot/Launcher.java

@@ -1,19 +0,0 @@
-package xsbti.boot;
-
-import java.io.File;
-
-public interface Launcher extends ScalaProvider
-{
-	public static final int InterfaceVersion = 1;
-	
-	public void boot(String[] args);
-	public MainResult checkAndLoad(String[] args);
-	public MainResult load(String[] args);
-	public MainResult run(ClassLoader sbtLoader, SbtConfiguration configuration);
-	
-	public File ProjectDirectory();
-	public File BootDirectory();
-	public File PropertiesFile();
-	
-	public Launcher launcher(File base, String mainClassName);
-}