2006-04-02 Andrew John Hughes <gnu_andrew@member.fsf.org>

	* java/io/ObjectOutputStream.java:
	(writeObject(Object)): Added enum support.
	(writeClassDescriptor(ObjectStreamClass)): Likewise.
	* java/io/ObjectStreamClass.java:
	(isEnum()): New package-private method.
	(setFlags(Class)): Added enum support.
	* java/io/ObjectStreamConstants.java:
	(SC_ENUM): Added.

1 files changed, 10 insertions, 1 deletions

diff --git a/java/io/ObjectStreamClass.java b/java/io/ObjectStreamClass.java
index 1df7c7ea0..1ca78ed9f 100644
--- a/java/io/ObjectStreamClass.java
+++ b/java/io/ObjectStreamClass.java
@@ -226,6 +226,12 @@ public class ObjectStreamClass implements Serializable
     return (flags & ObjectStreamConstants.SC_EXTERNALIZABLE) != 0;
   }
 
+  // Returns true iff the class that this ObjectStreamClass represents
+  // implements Externalizable.
+  boolean isEnum()
+  {
+    return (flags & ObjectStreamConstants.SC_ENUM) != 0;
+  }
 
   // Returns the <code>ObjectStreamClass</code> that represents the
   // class that is the superclass of the class this
@@ -594,6 +600,9 @@ outer:
 
     if (writeObjectMethod != null)
       flags |= ObjectStreamConstants.SC_WRITE_METHOD;
+
+    if (cl.isEnum() || cl == Enum.class)
+      flags |= ObjectStreamConstants.SC_ENUM;
   }
 
 
@@ -603,7 +612,7 @@ outer:
   {
     SetAccessibleAction setAccessible = new SetAccessibleAction();
 
-    if (!isSerializable() || isExternalizable())
+    if (!isSerializable() || isExternalizable() || isEnum())
       {
 	fields = NO_FIELDS;
 	return;