sketch a few more classpath classes

classpath/java/lang/reflect/Field.java

@@ -18,4 +18,16 @@ public class Field<T> extends AccessibleObject {
   public void setAccessible(boolean v) {
     if (v) vmFlags |= Accessible; else vmFlags &= ~Accessible;
   }
+
+  public Class<T> getDeclaringClass() {
+    return class_;
+  }
+
+  public int getModifiers() {
+    return flags;
+  }
+
+  public String getName() {
+    return new String(name, 0, name.length - 1, false);
+  }
 }