From aedd569a4cb9ab4e166af5c61bf73a96b3eb7714 Mon Sep 17 00:00:00 2001
From: chegar <unknown>
Date: Mon, 23 Aug 2010 14:35:22 +0100
Subject: [PATCH] 6968584: Thread should not be Cloneable Reviewed-by: dholmes

---
 src/share/classes/java/lang/Thread.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/share/classes/java/lang/Thread.java b/src/share/classes/java/lang/Thread.java
index c379ec591..c3592cf5c 100644
--- a/src/share/classes/java/lang/Thread.java
+++ b/src/share/classes/java/lang/Thread.java
@@ -413,6 +413,18 @@ class Thread implements Runnable {
         tid = nextThreadID();
     }
 
+    /**
+     * Throws CloneNotSupportedException as a Thread can not be meaningfully
+     * cloned. Construct a new Thread instead.
+     *
+     * @throws  CloneNotSupportedException
+     *          always
+     */
+    @Override
+    protected Object clone() throws CloneNotSupportedException {
+        throw new CloneNotSupportedException();
+    }
+
     /**
      * Allocates a new {@code Thread} object. This constructor has the same
      * effect as {@linkplain #Thread(ThreadGroup,Runnable,String) Thread}
-- 
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