SystemClassLoader.java (addClass): Get the value of package-private field "loadedClasses" using reflection.

* gnu/gcj/runtime/SystemClassLoader.java (addClass): Get the value
	of package-private field "loadedClasses" using reflection.
	* java/lang/VMCompiler.java (compileClass): Remove unreachable catch
	block.

From-SVN: r112858

libjava/java/lang/VMCompiler.java

@@ -198,11 +198,6 @@ final class VMCompiler
 	md.update(data);
 	digest = md.digest();
       }
-    catch (CloneNotSupportedException _)
-      {
-	// Can't happen.
-	return null;
-      }
     catch (NullPointerException _)
       {
 	// If md5Digest==null -- but really this should never happen