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http://altair.cs.oswego.edu/mailman/listinfo/concurrency-interest</A>. |
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|
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<p><em>Note: The javadocs here do <em>not</em> include pre-existing |
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java classes (for example <tt>java.lang.Thread</tt>) that were changed |
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java classes (for example <code>java.lang.Thread</code>) that were changed |
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as part of the JSR166 spec. On the other hand, the javadocs here do |
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include some existing java.util Collection interfaces and classes that |
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are not part of the spec, but are included because some new methods |
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implement or inherit from their specifications. |
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</em> |
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|
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<p>JSR-166 introduces package <tt>java.util.concurrent</tt> |
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> |
<p>JSR-166 introduces package <code>java.util.concurrent</code> |
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containing utility classes commonly useful in concurrent |
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programming. Like package <tt>java.util</tt>, it includes a few small |
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> |
programming. Like package <code>java.util</code>, it includes a few small |
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standardized extensible frameworks, as well as other classes that |
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provide useful functionality and are otherwise tedious or difficult to |
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implement. |
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|
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A basic (nonblocking) {@link java.util.Queue} interface extending |
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{@link java.util.Collection} is introduced into |
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< |
<tt>java.util</tt>. Existing class {@link java.util.LinkedList} is |
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> |
<code>java.util</code>. Existing class {@link java.util.LinkedList} is |
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adapted to support Queue, and a new non-thread-safe {@link |
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java.util.PriorityQueue} is added. |
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|
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most programs. Perhaps they will eventually be deprecated.) |
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|
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<li> Access checks are no longer required when a Thread interrupts |
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<em>itself</em>. The <tt>interrupt</tt> method is the only way to |
69 |
> |
<em>itself</em>. The <code>interrupt</code> method is the only way to |
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re-assert a thread's interruption status (and in the case of |
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self-interruption has no other effect than this). The check here |
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previously caused unjustifiable and uncontrollable failures when |
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restricted code invoked library code that must reassert interruption |
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to correctly propagate status when encountering some |
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<tt>InterruptedExceptions</tt>. |
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<li> The <tt>destroy</tt> method, which has never been implemented, |
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> |
<code>InterruptedExceptions</code>. |
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> |
<li> The <code>destroy</code> method, which has never been implemented, |
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has finally been deprecated. This is just a spec change, reflecting |
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the fact that the reason it has never been implemented is that |
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it was undesirable and unworkable. |
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|
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<h2>Timing</h2> |
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|
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Method <tt>nanoTime</tt> is added to {@link java.lang.System}. It |
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> |
Method <code>nanoTime</code> is added to {@link java.lang.System}. It |
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provides a high-precision timing facility that is distinct from and |
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uncoordinated with <tt>System.currentTimeMillis</tt>. |
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> |
uncoordinated with <code>System.currentTimeMillis</code>. |
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|
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<h2>Removing ThreadLocals</h2> |
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|