Imported GNU Classpath 0.90

Imported GNU Classpath 0.90
       * scripts/makemake.tcl: Set gnu/java/awt/peer/swing to ignore.
       * gnu/classpath/jdwp/VMFrame.java (SIZE): New constant.
       * java/lang/VMCompiler.java: Use gnu.java.security.hash.MD5.
       * java/lang/Math.java: New override file.
       * java/lang/Character.java: Merged from Classpath.
       (start, end): Now 'int's.
       (canonicalName): New field.
       (CANONICAL_NAME, NO_SPACES_NAME, CONSTANT_NAME): New constants.
       (UnicodeBlock): Added argument.
       (of): New overload.
       (forName): New method.
       Updated unicode blocks.
       (sets): Updated.
       * sources.am: Regenerated.
       * Makefile.in: Likewise.

From-SVN: r111942

libjava/classpath/gnu/java/util/prefs/FileBasedFactory.java

@@ -47,11 +47,19 @@ import java.util.prefs.*;
  */
 public class FileBasedFactory implements PreferencesFactory {
 
+    // We don't save or read any system preferences for the
+    // time being.
+    private static final Preferences systemPreferences
+      = new MemoryBasedPreferences(null, "", false);
+
+    private static final Preferences userPreferences
+      = new FileBasedPreferences();
+
     public Preferences systemRoot() {
-        return null;
+        return systemPreferences;
     }
 
     public Preferences userRoot() {
-        return null;
+        return userPreferences;
     }
 }