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root/jsr166/jsr166/src/jsr166y/ThreadLocalRandom.java
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Comparing jsr166/src/jsr166y/ThreadLocalRandom.java (file contents):
Revision 1.13 by jsr166, Wed Aug 19 17:52:50 2009 UTC vs.
Revision 1.14 by jsr166, Thu Jun 3 01:03:13 2010 UTC

# Line 44 | Line 44 | public class ThreadLocalRandom extends R
44      private long rnd;
45  
46      /**
47 <     * Initialization flag to permit the first and only allowed call
48 <     * to setSeed (inside Random constructor) to succeed.  We can't
49 <     * allow others since it would cause setting seed in one part of a
50 <     * program to unintentionally impact other usages by the thread.
47 >     * Initialization flag to permit calls to setSeed to succeed only
48 >     * while executing the Random constructor.  We can't allow others
49 >     * since it would cause setting seed in one part of a program to
50 >     * unintentionally impact other usages by the thread.
51       */
52      boolean initialized;
53  
# Line 69 | Line 69 | public class ThreadLocalRandom extends R
69  
70      /**
71       * Constructor called only by localRandom.initialValue.
72     * We rely on the fact that the superclass no-arg constructor
73     * invokes setSeed exactly once to initialize.
72       */
73      ThreadLocalRandom() {
74          super();
75 +        initialized = true;
76      }
77  
78      /**
# Line 94 | Line 93 | public class ThreadLocalRandom extends R
93      public void setSeed(long seed) {
94          if (initialized)
95              throw new UnsupportedOperationException();
97        initialized = true;
96          rnd = (seed ^ multiplier) & mask;
97      }
98  

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