Calendar.java (set): First call computeFields if needed.

x
	* java/util/Calendar.java (set):  First call computeFields if needed.
	* java/util/natGregorianCalendar.cc (computeTime):  Cast 1000 to jlong.

From-SVN: r26910

libjava/java/util/Calendar.java

@@ -187,6 +187,7 @@ public abstract class Calendar implements java.io.Serializable, Cloneable
 
   public final void set (int fld, int value)
   {
+    if (! areFieldsSet) computeFields();
     fields[fld] = value;
     isTimeSet = false;
   }