tightening visibility, fixing warnings
diff --git a/bundles/org.eclipse.e4.javascript/src/org/eclipse/e4/internal/javascript/JSFrameworkImpl.java b/bundles/org.eclipse.e4.javascript/src/org/eclipse/e4/internal/javascript/JSFrameworkImpl.java
index 36b769b..03b4b4e 100644
--- a/bundles/org.eclipse.e4.javascript/src/org/eclipse/e4/internal/javascript/JSFrameworkImpl.java
+++ b/bundles/org.eclipse.e4.javascript/src/org/eclipse/e4/internal/javascript/JSFrameworkImpl.java
@@ -49,10 +49,10 @@
 		}
 	};
 
-	List installOrderBundles = new ArrayList();
-	List resolveOrderBundles = new ArrayList();
-	Map exports = new HashMap();
-	Map requiredBundles = new HashMap();
+	private List installOrderBundles = new ArrayList();
+	private List resolveOrderBundles = new ArrayList();
+	private Map exports = new HashMap();
+	private Map requiredBundles = new HashMap();
 	private int currentBundleId = 0;
 
 	private final Scriptable frameworkScope;
@@ -125,6 +125,9 @@
 		return installBundle(location, headers, new RhinoClassLoader(bundle));
 	}
 
+	/**
+	 * @throws JSBundleException  
+	 */
 	public JSBundle installBundle(String location, Map headers, RhinoClassLoader contextClassLoader) throws JSBundleException {
 		if (location == null)
 			throw new IllegalArgumentException("Location cannot be null"); //$NON-NLS-1$