1 files changed, 0 insertions, 55 deletions
diff --git a/docs/teaching/demos/spacewar/src/coordination/Selfex.java b/docs/teaching/demos/spacewar/src/coordination/Selfex.java
deleted file mode 100644
index ff73afd61..000000000
--- a/docs/teaching/demos/spacewar/src/coordination/Selfex.java
+++ /dev/null
@@ -1,55 +0,0 @@
-/* -*- Mode: Java; -*-
-
-Copyright (c) Xerox Corporation 1998-2002.  All rights reserved.
-
-Use and copying of this software and preparation of derivative works based
-upon this software are permitted.  Any distribution of this software or
-derivative works must comply with all applicable United States export control
-laws.
- 
-This software is made available AS IS, and Xerox Corporation makes no warranty
-about the software, its performance or its conformity to any specification.
-
-|<---            this code is formatted to fit into 80 columns             --->|
-|<---            this code is formatted to fit into 80 columns             --->|
-|<---            this code is formatted to fit into 80 columns             --->|
-
-*/
-
-package coordination;
-
-
-import java.lang.String;
-
-class Selfex implements Exclusion {
-    String methodName;
-    Thread thread;
-    int count = 0;
-
-    Selfex (String _methodName) {
-	methodName = _methodName;
-    }
-
-    public boolean testExclusion (String _methodName) {
-	if (count == 0)
-	    return(true);
-	return (thread == Thread.currentThread());
-    }
-
-    public void enterExclusion (String _methodName) {
-	count++;
-	thread = Thread.currentThread();    // note that if count wasn't 0
-	// we aren't changing thread
-    }
-
-    public void exitExclusion (String _methodName) {
-	count--;
-	if (count == 0)                   // not stricly necessary, but...
-	    thread = null;
-    }
-
-    public void printNames() {
-	System.out.println("Selfex name: " + methodName);
-    }
-
-}