Regeneration from plexi d8b5e32
diff --git a/coverage/com.google.enterprise.adaptor.CircularBufferHandler.html b/coverage/com.google.enterprise.adaptor.CircularBufferHandler.html
index df6ff76..1b21238 100644
--- a/coverage/com.google.enterprise.adaptor.CircularBufferHandler.html
+++ b/coverage/com.google.enterprise.adaptor.CircularBufferHandler.html
@@ -103,17 +103,17 @@
<td class="src"><pre class="src"> @Override</pre></td></tr>
<tr> <td class="numLine"> 47</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">synchronized</span> <span class="keyword">void</span> publish(LogRecord record) {</pre></td></tr>
-<tr> <td class="numLineCover"> 48</td> <td class="nbHitsUncovered"><a title="Line 48: Conditional coverage 50% (1/2)."> 80</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 48: Conditional coverage 50% (1/2)."> <span class="keyword">if</span> (!isLoggable(record)) {</a></span></pre></td></tr>
+<tr> <td class="numLineCover"> 48</td> <td class="nbHitsUncovered"><a title="Line 48: Conditional coverage 50% (1/2)."> 81</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 48: Conditional coverage 50% (1/2)."> <span class="keyword">if</span> (!isLoggable(record)) {</a></span></pre></td></tr>
<tr> <td class="numLineCover"> 49</td> <td class="nbHitsUncovered"> 0</td> <td class="src"><pre class="src"><span class="srcUncovered"> <span class="keyword">return</span>;</span></pre></td></tr>
<tr> <td class="numLine"> 50</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 51</td> <td class="nbHitsCovered"> 80</td> <td class="src"><pre class="src"> buffer[tail] = record;</pre></td></tr>
-<tr> <td class="numLineCover"> 52</td> <td class="nbHitsCovered"> 80</td> <td class="src"><pre class="src"> tail = (tail + 1) % buffer.length;</pre></td></tr>
-<tr> <td class="numLineCover"> 53</td> <td class="nbHitsUncovered"><a title="Line 53: Conditional coverage 50% (1/2)."> 80</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 53: Conditional coverage 50% (1/2)."> <span class="keyword">if</span> (head == tail) {</a></span></pre></td></tr>
+<tr> <td class="numLineCover"> 51</td> <td class="nbHitsCovered"> 81</td> <td class="src"><pre class="src"> buffer[tail] = record;</pre></td></tr>
+<tr> <td class="numLineCover"> 52</td> <td class="nbHitsCovered"> 81</td> <td class="src"><pre class="src"> tail = (tail + 1) % buffer.length;</pre></td></tr>
+<tr> <td class="numLineCover"> 53</td> <td class="nbHitsUncovered"><a title="Line 53: Conditional coverage 50% (1/2)."> 81</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 53: Conditional coverage 50% (1/2)."> <span class="keyword">if</span> (head == tail) {</a></span></pre></td></tr>
<tr> <td class="numLineCover"> 54</td> <td class="nbHitsUncovered"> 0</td> <td class="src"><pre class="src"><span class="srcUncovered"> head = (head + 1) % buffer.length;</span></pre></td></tr>
<tr> <td class="numLine"> 55</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 56</td> <td class="nbHitsCovered"> 80</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 56</td> <td class="nbHitsCovered"> 81</td> <td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 57</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> </pre></td></tr>
<tr> <td class="numLine"> 58</td> <td class="nbHits"> </td>
diff --git a/coverage/com.google.enterprise.adaptor.IOHelper.html b/coverage/com.google.enterprise.adaptor.IOHelper.html
index e618bb2..0bc69f9 100644
--- a/coverage/com.google.enterprise.adaptor.IOHelper.html
+++ b/coverage/com.google.enterprise.adaptor.IOHelper.html
@@ -83,8 +83,8 @@
<tr> <td class="numLineCover"> 33</td> <td class="nbHitsCovered"> 74</td> <td class="src"><pre class="src"> <span class="keyword">byte</span>[] buffer = <span class="keyword">new</span> <span class="keyword">byte</span>[1024];</pre></td></tr>
<tr> <td class="numLine"> 34</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="keyword">int</span> read;</pre></td></tr>
-<tr> <td class="numLineCover"> 35</td> <td class="nbHitsCovered"><a title="Line 35: Conditional coverage 100% (2/2)."> 199</a></td> <td class="src"><pre class="src"> <a title="Line 35: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> ((read = in.read(buffer)) != -1) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 36</td> <td class="nbHitsCovered"> 126</td> <td class="src"><pre class="src"> out.write(buffer, 0, read);</pre></td></tr>
+<tr> <td class="numLineCover"> 35</td> <td class="nbHitsCovered"><a title="Line 35: Conditional coverage 100% (2/2)."> 181</a></td> <td class="src"><pre class="src"> <a title="Line 35: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> ((read = in.read(buffer)) != -1) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 36</td> <td class="nbHitsCovered"> 108</td> <td class="src"><pre class="src"> out.write(buffer, 0, read);</pre></td></tr>
<tr> <td class="numLine"> 37</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLineCover"> 38</td> <td class="nbHitsCovered"> 72</td> <td class="src"><pre class="src"> out.flush();</pre></td></tr>
diff --git a/coverage/com.google.enterprise.adaptor.Journal.html b/coverage/com.google.enterprise.adaptor.Journal.html
index 3f6cf17..239f884 100644
--- a/coverage/com.google.enterprise.adaptor.Journal.html
+++ b/coverage/com.google.enterprise.adaptor.Journal.html
@@ -373,8 +373,8 @@
<td class="src"><pre class="src"> <span class="keyword">private</span> <span class="keyword">long</span> determineTimeResolutionOnce() {</pre></td></tr>
<tr> <td class="numLineCover"> 214</td> <td class="nbHitsCovered"> 820</td> <td class="src"><pre class="src"> <span class="keyword">long</span> time = timeProvider.currentTimeMillis();</pre></td></tr>
<tr> <td class="numLineCover"> 215</td> <td class="nbHitsCovered"> 820</td> <td class="src"><pre class="src"> <span class="keyword">long</span> startTime = time;</pre></td></tr>
-<tr> <td class="numLineCover"> 216</td> <td class="nbHitsCovered"><a title="Line 216: Conditional coverage 100% (2/2)."> 346854</a></td> <td class="src"><pre class="src"> <a title="Line 216: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> (startTime == time) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 217</td> <td class="nbHitsCovered"> 346034</td> <td class="src"><pre class="src"> time = timeProvider.currentTimeMillis();</pre></td></tr>
+<tr> <td class="numLineCover"> 216</td> <td class="nbHitsCovered"><a title="Line 216: Conditional coverage 100% (2/2)."> 328157</a></td> <td class="src"><pre class="src"> <a title="Line 216: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> (startTime == time) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 217</td> <td class="nbHitsCovered"> 327337</td> <td class="src"><pre class="src"> time = timeProvider.currentTimeMillis();</pre></td></tr>
<tr> <td class="numLine"> 218</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLineCover"> 219</td> <td class="nbHitsCovered"> 820</td> <td class="src"><pre class="src"> <span class="keyword">return</span> time - startTime;</pre></td></tr>
@@ -777,14 +777,14 @@
<tr> <td class="numLine"> 473</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">// Check if the current Stat object is still valid to write to</span></pre></td></tr>
<tr> <td class="numLineCover"> 474</td> <td class="nbHitsCovered"><a title="Line 474: Conditional coverage 100% (2/2)."> 378</a></td> <td class="src"><pre class="src"> <a title="Line 474: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (pendingStatPeriodEnd > currentTime) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 475</td> <td class="nbHitsCovered"> 363</td> <td class="src"><pre class="src"> <span class="keyword">return</span> stats[currentStat];</pre></td></tr>
+<tr> <td class="numLineCover"> 475</td> <td class="nbHitsCovered"> 362</td> <td class="src"><pre class="src"> <span class="keyword">return</span> stats[currentStat];</pre></td></tr>
<tr> <td class="numLine"> 476</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 477</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">// Check if all the Stat objects are invalid. This occurs when the last</span></pre></td></tr>
<tr> <td class="numLine"> 478</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">// request was a long time ago.</span></pre></td></tr>
-<tr> <td class="numLineCover"> 479</td> <td class="nbHitsCovered"><a title="Line 479: Conditional coverage 100% (2/2)."> 15</a></td> <td class="src"><pre class="src"> <a title="Line 479: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (currentTime - pendingStatPeriodEnd</a></pre></td></tr>
+<tr> <td class="numLineCover"> 479</td> <td class="nbHitsCovered"><a title="Line 479: Conditional coverage 100% (2/2)."> 16</a></td> <td class="src"><pre class="src"> <a title="Line 479: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (currentTime - pendingStatPeriodEnd</a></pre></td></tr>
<tr> <td class="numLine"> 480</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> > snapshotDurationMs * stats.length) {</pre></td></tr>
<tr> <td class="numLineCover"> 481</td> <td class="nbHitsCovered"><a title="Line 481: Conditional coverage 100% (2/2)."> 403</a></td> <td class="src"><pre class="src"> <a title="Line 481: Conditional coverage 100% (2/2)."> <span class="keyword">for</span> (<span class="keyword">int</span> i = 0; i < stats.length; i++) {</a></pre></td></tr>
@@ -797,14 +797,14 @@
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 487</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">// Walk through time to get the current Stat object</span></pre></td></tr>
-<tr> <td class="numLineCover"> 488</td> <td class="nbHitsCovered"><a title="Line 488: Conditional coverage 100% (2/2)."> 203</a></td> <td class="src"><pre class="src"> <a title="Line 488: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> (pendingStatPeriodEnd <= currentTime) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 489</td> <td class="nbHitsCovered"> 188</td> <td class="src"><pre class="src"> currentStat++;</pre></td></tr>
-<tr> <td class="numLineCover"> 490</td> <td class="nbHitsCovered"> 188</td> <td class="src"><pre class="src"> currentStat %= stats.length;</pre></td></tr>
-<tr> <td class="numLineCover"> 491</td> <td class="nbHitsCovered"> 188</td> <td class="src"><pre class="src"> stats[currentStat].reset();</pre></td></tr>
-<tr> <td class="numLineCover"> 492</td> <td class="nbHitsCovered"> 188</td> <td class="src"><pre class="src"> pendingStatPeriodEnd += snapshotDurationMs;</pre></td></tr>
+<tr> <td class="numLineCover"> 488</td> <td class="nbHitsCovered"><a title="Line 488: Conditional coverage 100% (2/2)."> 205</a></td> <td class="src"><pre class="src"> <a title="Line 488: Conditional coverage 100% (2/2)."> <span class="keyword">while</span> (pendingStatPeriodEnd <= currentTime) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 489</td> <td class="nbHitsCovered"> 189</td> <td class="src"><pre class="src"> currentStat++;</pre></td></tr>
+<tr> <td class="numLineCover"> 490</td> <td class="nbHitsCovered"> 189</td> <td class="src"><pre class="src"> currentStat %= stats.length;</pre></td></tr>
+<tr> <td class="numLineCover"> 491</td> <td class="nbHitsCovered"> 189</td> <td class="src"><pre class="src"> stats[currentStat].reset();</pre></td></tr>
+<tr> <td class="numLineCover"> 492</td> <td class="nbHitsCovered"> 189</td> <td class="src"><pre class="src"> pendingStatPeriodEnd += snapshotDurationMs;</pre></td></tr>
<tr> <td class="numLine"> 493</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 494</td> <td class="nbHitsCovered"> 15</td> <td class="src"><pre class="src"> <span class="keyword">return</span> stats[currentStat];</pre></td></tr>
+<tr> <td class="numLineCover"> 494</td> <td class="nbHitsCovered"> 16</td> <td class="src"><pre class="src"> <span class="keyword">return</span> stats[currentStat];</pre></td></tr>
<tr> <td class="numLine"> 495</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 496</td> <td class="nbHits"> </td>
@@ -839,7 +839,7 @@
<td class="src"><pre class="src"> <span class="comment"> * as controlled by {@link Stats}.</span></pre></td></tr>
<tr> <td class="numLine"> 515</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLineCover"> 516</td> <td class="nbHitsCovered"> 584</td> <td class="src"><pre class="src"> <span class="keyword">static</span> <span class="keyword">class</span> Stat <span class="keyword">implements</span> Cloneable {</pre></td></tr>
+<tr> <td class="numLineCover"> 516</td> <td class="nbHitsCovered"> 585</td> <td class="src"><pre class="src"> <span class="keyword">static</span> <span class="keyword">class</span> Stat <span class="keyword">implements</span> Cloneable {</pre></td></tr>
<tr> <td class="numLine"> 517</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine"> 518</td> <td class="nbHits"> </td>
@@ -903,13 +903,13 @@
<td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine"> 549</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="keyword">private</span> <span class="keyword">void</span> reset() {</pre></td></tr>
-<tr> <td class="numLineCover"> 550</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> requestProcessingsCount = 0;</pre></td></tr>
-<tr> <td class="numLineCover"> 551</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> requestProcessingsFailureCount = 0;</pre></td></tr>
-<tr> <td class="numLineCover"> 552</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> requestProcessingsDurationSum = 0;</pre></td></tr>
-<tr> <td class="numLineCover"> 553</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> requestProcessingsMaxDuration = 0;</pre></td></tr>
-<tr> <td class="numLineCover"> 554</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> requestProcessingsThroughput = 0;</pre></td></tr>
-<tr> <td class="numLineCover"> 555</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> gsaRetrievedDocument = <span class="keyword">false</span>;</pre></td></tr>
-<tr> <td class="numLineCover"> 556</td> <td class="nbHitsCovered"> 28138</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 550</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> requestProcessingsCount = 0;</pre></td></tr>
+<tr> <td class="numLineCover"> 551</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> requestProcessingsFailureCount = 0;</pre></td></tr>
+<tr> <td class="numLineCover"> 552</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> requestProcessingsDurationSum = 0;</pre></td></tr>
+<tr> <td class="numLineCover"> 553</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> requestProcessingsMaxDuration = 0;</pre></td></tr>
+<tr> <td class="numLineCover"> 554</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> requestProcessingsThroughput = 0;</pre></td></tr>
+<tr> <td class="numLineCover"> 555</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> gsaRetrievedDocument = <span class="keyword">false</span>;</pre></td></tr>
+<tr> <td class="numLineCover"> 556</td> <td class="nbHitsCovered"> 28139</td> <td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 557</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> </pre></td></tr>
<tr> <td class="numLine"> 558</td> <td class="nbHits"> </td>
diff --git a/coverage/com.google.enterprise.adaptor.OneAtATimeRunnable.html b/coverage/com.google.enterprise.adaptor.OneAtATimeRunnable.html
index 9f84282..d476416 100644
--- a/coverage/com.google.enterprise.adaptor.OneAtATimeRunnable.html
+++ b/coverage/com.google.enterprise.adaptor.OneAtATimeRunnable.html
@@ -71,117 +71,123 @@
<td class="src"><pre class="src"> <span class="comment"> * <p>This class is thread-safe.</span></pre></td></tr>
<tr> <td class="numLine"> 26</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLineCover"> 27</td> <td class="nbHitsCovered"> 4</td> <td class="src"><pre class="src"> <span class="keyword">class</span> OneAtATimeRunnable <span class="keyword">implements</span> Runnable {</pre></td></tr>
-<tr> <td class="numLineCover"> 28</td> <td class="nbHitsCovered"> 28</td> <td class="src"><pre class="src"> <span class="keyword">private</span> AtomicReference<Thread> runningThread = <span class="keyword">new</span> AtomicReference<Thread>();</pre></td></tr>
+<tr> <td class="numLineCover"> 27</td> <td class="nbHitsCovered"> 6</td> <td class="src"><pre class="src"> <span class="keyword">class</span> OneAtATimeRunnable <span class="keyword">implements</span> Runnable {</pre></td></tr>
+<tr> <td class="numLine"> 28</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine"> 29</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">private</span> Runnable runnable;</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * We use an atomic reference to a thread to manage the life-cycle of this</span></pre></td></tr>
<tr> <td class="numLine"> 30</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">private</span> Runnable alreadyRunningRunnable;</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * object. Whenever the value is "null" it means we are not currently running</span></pre></td></tr>
<tr> <td class="numLine"> 31</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> </pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * and a new thread can be started. Whenever we are currently executing we</span></pre></td></tr>
<tr> <td class="numLine"> 32</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * store reference to the thread that is executing our {@link #runnable}.</span></pre></td></tr>
<tr> <td class="numLine"> 33</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * @param runnable {@code Runnable} to call at most once at a time</span></pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * When {@link #stop} has been called we store a reference to an empty thread</span></pre></td></tr>
<tr> <td class="numLine"> 34</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * @param alreadyRunningRunnable {@code Runnable} to call if {@link #run} was</span></pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * to prevent future invocation.</span></pre></td></tr>
<tr> <td class="numLine"> 35</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * called and {@code runnable} is already running</span></pre></td></tr>
-<tr> <td class="numLine"> 36</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLine"> 37</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> OneAtATimeRunnable(Runnable runnable,</pre></td></tr>
-<tr> <td class="numLineCover"> 38</td> <td class="nbHitsCovered"> 28</td> <td class="src"><pre class="src"> Runnable alreadyRunningRunnable) {</pre></td></tr>
-<tr> <td class="numLineCover"> 39</td> <td class="nbHitsUncovered"><a title="Line 39: Conditional coverage 50% (2/4) [each condition: 50%, 50%]."> 28</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 39: Conditional coverage 50% (2/4) [each condition: 50%, 50%]."> <span class="keyword">if</span> (runnable == <span class="keyword">null</span> || alreadyRunningRunnable == <span class="keyword">null</span>) {</a></span></pre></td></tr>
-<tr> <td class="numLineCover"> 40</td> <td class="nbHitsUncovered"> 0</td> <td class="src"><pre class="src"><span class="srcUncovered"> <span class="keyword">throw</span> <span class="keyword">new</span> NullPointerException();</span></pre></td></tr>
-<tr> <td class="numLine"> 41</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 42</td> <td class="nbHitsCovered"> 28</td> <td class="src"><pre class="src"> <span class="keyword">this</span>.runnable = runnable;</pre></td></tr>
-<tr> <td class="numLineCover"> 43</td> <td class="nbHitsCovered"> 28</td> <td class="src"><pre class="src"> <span class="keyword">this</span>.alreadyRunningRunnable = alreadyRunningRunnable;</pre></td></tr>
-<tr> <td class="numLineCover"> 44</td> <td class="nbHitsCovered"> 28</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 45</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> </pre></td></tr>
-<tr> <td class="numLine"> 46</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> @Override</pre></td></tr>
-<tr> <td class="numLine"> 47</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> run() {</pre></td></tr>
-<tr> <td class="numLineCover"> 48</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> Thread thisThread = Thread.currentThread();</pre></td></tr>
-<tr> <td class="numLineCover"> 49</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> <span class="keyword">boolean</span> success = runningThread.compareAndSet(<span class="keyword">null</span>, thisThread);</pre></td></tr>
-<tr> <td class="numLineCover"> 50</td> <td class="nbHitsCovered"><a title="Line 50: Conditional coverage 100% (2/2)."> 5</a></td> <td class="src"><pre class="src"> <a title="Line 50: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (!success) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 51</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> alreadyRunningRunnable.run();</pre></td></tr>
-<tr> <td class="numLineCover"> 52</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> <span class="keyword">return</span>;</pre></td></tr>
-<tr> <td class="numLine"> 53</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 54</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">try</span> {</pre></td></tr>
-<tr> <td class="numLineCover"> 55</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runnable.run();</pre></td></tr>
-<tr> <td class="numLine"> 56</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> } <span class="keyword">finally</span> {</pre></td></tr>
-<tr> <td class="numLineCover"> 57</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runningThread.set(<span class="keyword">null</span>);</pre></td></tr>
-<tr> <td class="numLineCover"> 58</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 59</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 60</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> </pre></td></tr>
-<tr> <td class="numLine"> 61</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
-<tr> <td class="numLine"> 62</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * Gives the opportunity to run {@code runnable} in a new thread if it is not</span></pre></td></tr>
-<tr> <td class="numLine"> 63</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * already running, but otherwise does nothing. This method will not call</span></pre></td></tr>
-<tr> <td class="numLine"> 64</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * {@code alreadyRunningRunnable}.</span></pre></td></tr>
-<tr> <td class="numLine"> 65</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment"> *</span></pre></td></tr>
-<tr> <td class="numLine"> 66</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * @return new thread if it was successfully started, {@code null} otherwise</span></pre></td></tr>
-<tr> <td class="numLine"> 67</td> <td class="nbHits"> </td>
+<tr> <td class="numLine"> 36</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * Life-cycle:</span></pre></td></tr>
+<tr> <td class="numLine"> 37</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * - {@link #run} is called by an external thread; we check if</span></pre></td></tr>
+<tr> <td class="numLine"> 38</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * {@link #runningThread} is "null": if true, it means that {@link #runnable}</span></pre></td></tr>
+<tr> <td class="numLine"> 39</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * is not running, we start a new thread of execution and store reference to</span></pre></td></tr>
+<tr> <td class="numLine"> 40</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * the new thread of execution, otherwise we run code in</span></pre></td></tr>
+<tr> <td class="numLine"> 41</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * {@link #alreadyRunningRunnable} to signify that one instance is already</span></pre></td></tr>
+<tr> <td class="numLine"> 42</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * running.</span></pre></td></tr>
+<tr> <td class="numLine"> 43</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> *</span></pre></td></tr>
+<tr> <td class="numLine"> 44</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * - when {@link #stop} is called we replace {@link #runningThread} with a</span></pre></td></tr>
+<tr> <td class="numLine"> 45</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * reference to a new empty thread that does not do anything and interrupt</span></pre></td></tr>
+<tr> <td class="numLine"> 46</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * the currently executing thread. This guarantees that {@link #run} method</span></pre></td></tr>
+<tr> <td class="numLine"> 47</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * won't run in future because {@link #runningThread} won't ever be "null".</span></pre></td></tr>
+<tr> <td class="numLine"> 48</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLine"> 68</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> Thread runInNewThread() {</pre></td></tr>
-<tr> <td class="numLineCover"> 69</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> Thread newThread = <span class="keyword">new</span> Thread(<span class="keyword">new</span> SetBackToNullRunnable());</pre></td></tr>
-<tr> <td class="numLineCover"> 70</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> <span class="keyword">boolean</span> success = runningThread.compareAndSet(<span class="keyword">null</span>, newThread);</pre></td></tr>
-<tr> <td class="numLineCover"> 71</td> <td class="nbHitsCovered"><a title="Line 71: Conditional coverage 100% (2/2)."> 5</a></td> <td class="src"><pre class="src"> <a title="Line 71: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (!success) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 72</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> <span class="keyword">return</span> <span class="keyword">null</span>;</pre></td></tr>
-<tr> <td class="numLine"> 73</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 74</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> newThread.start();</pre></td></tr>
-<tr> <td class="numLineCover"> 75</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> <span class="keyword">return</span> newThread;</pre></td></tr>
-<tr> <td class="numLine"> 76</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 77</td> <td class="nbHits"> </td>
+<tr> <td class="numLineCover"> 49</td> <td class="nbHitsCovered"> 29</td> <td class="src"><pre class="src"> <span class="keyword">private</span> AtomicReference<Thread> runningThread = <span class="keyword">new</span> AtomicReference<Thread>();</pre></td></tr>
+<tr> <td class="numLine"> 50</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">private</span> Runnable runnable;</pre></td></tr>
+<tr> <td class="numLine"> 51</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">private</span> Runnable alreadyRunningRunnable;</pre></td></tr>
+<tr> <td class="numLine"> 52</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> </pre></td></tr>
-<tr> <td class="numLine"> 78</td> <td class="nbHits"> </td>
+<tr> <td class="numLine"> 53</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
-<tr> <td class="numLine"> 79</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * Prevent later executions of {@code runnable} and interrupt the currently</span></pre></td></tr>
-<tr> <td class="numLine"> 80</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * running thread, if any. It does not wait for the thread to actually</span></pre></td></tr>
-<tr> <td class="numLine"> 81</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * complete.</span></pre></td></tr>
-<tr> <td class="numLine"> 82</td> <td class="nbHits"> </td>
+<tr> <td class="numLine"> 54</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * @param runnable {@code Runnable} to call at most once at a time</span></pre></td></tr>
+<tr> <td class="numLine"> 55</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * @param alreadyRunningRunnable {@code Runnable} to call if {@link #run} was</span></pre></td></tr>
+<tr> <td class="numLine"> 56</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * called and {@code runnable} is already running</span></pre></td></tr>
+<tr> <td class="numLine"> 57</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLine"> 83</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> stop() {</pre></td></tr>
-<tr> <td class="numLine"> 84</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment">// Permanently set the runningThread to non-null.</span></pre></td></tr>
-<tr> <td class="numLineCover"> 85</td> <td class="nbHitsCovered"> 25</td> <td class="src"><pre class="src"> Thread thread = runningThread.getAndSet(<span class="keyword">new</span> Thread());</pre></td></tr>
-<tr> <td class="numLineCover"> 86</td> <td class="nbHitsCovered"><a title="Line 86: Conditional coverage 100% (2/2)."> 25</a></td> <td class="src"><pre class="src"> <a title="Line 86: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (thread != <span class="keyword">null</span>) {</a></pre></td></tr>
-<tr> <td class="numLineCover"> 87</td> <td class="nbHitsCovered"> 4</td> <td class="src"><pre class="src"> thread.interrupt();</pre></td></tr>
-<tr> <td class="numLine"> 88</td> <td class="nbHits"> </td>
+<tr> <td class="numLine"> 58</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> OneAtATimeRunnable(Runnable runnable,</pre></td></tr>
+<tr> <td class="numLineCover"> 59</td> <td class="nbHitsCovered"> 29</td> <td class="src"><pre class="src"> Runnable alreadyRunningRunnable) {</pre></td></tr>
+<tr> <td class="numLineCover"> 60</td> <td class="nbHitsUncovered"><a title="Line 60: Conditional coverage 50% (2/4) [each condition: 50%, 50%]."> 29</a></td> <td class="src"><pre class="src"><span class="srcUncovered"> <a title="Line 60: Conditional coverage 50% (2/4) [each condition: 50%, 50%]."> <span class="keyword">if</span> (runnable == <span class="keyword">null</span> || alreadyRunningRunnable == <span class="keyword">null</span>) {</a></span></pre></td></tr>
+<tr> <td class="numLineCover"> 61</td> <td class="nbHitsUncovered"> 0</td> <td class="src"><pre class="src"><span class="srcUncovered"> <span class="keyword">throw</span> <span class="keyword">new</span> NullPointerException();</span></pre></td></tr>
+<tr> <td class="numLine"> 62</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 89</td> <td class="nbHitsCovered"> 25</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 90</td> <td class="nbHits"> </td>
+<tr> <td class="numLineCover"> 63</td> <td class="nbHitsCovered"> 29</td> <td class="src"><pre class="src"> <span class="keyword">this</span>.runnable = runnable;</pre></td></tr>
+<tr> <td class="numLineCover"> 64</td> <td class="nbHitsCovered"> 29</td> <td class="src"><pre class="src"> <span class="keyword">this</span>.alreadyRunningRunnable = alreadyRunningRunnable;</pre></td></tr>
+<tr> <td class="numLineCover"> 65</td> <td class="nbHitsCovered"> 29</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 66</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> </pre></td></tr>
-<tr> <td class="numLine"> 91</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> Runnable getRunnable() {</pre></td></tr>
-<tr> <td class="numLineCover"> 92</td> <td class="nbHitsCovered"> 4</td> <td class="src"><pre class="src"> <span class="keyword">return</span> runnable;</pre></td></tr>
-<tr> <td class="numLine"> 93</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 67</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> @Override</pre></td></tr>
+<tr> <td class="numLine"> 68</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> run() {</pre></td></tr>
+<tr> <td class="numLineCover"> 69</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> Thread thisThread = Thread.currentThread();</pre></td></tr>
+<tr> <td class="numLineCover"> 70</td> <td class="nbHitsCovered"> 5</td> <td class="src"><pre class="src"> <span class="keyword">boolean</span> success = runningThread.compareAndSet(<span class="keyword">null</span>, thisThread);</pre></td></tr>
+<tr> <td class="numLineCover"> 71</td> <td class="nbHitsCovered"><a title="Line 71: Conditional coverage 100% (2/2)."> 5</a></td> <td class="src"><pre class="src"> <a title="Line 71: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (!success) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 72</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> alreadyRunningRunnable.run();</pre></td></tr>
+<tr> <td class="numLineCover"> 73</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> <span class="keyword">return</span>;</pre></td></tr>
+<tr> <td class="numLine"> 74</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 75</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">try</span> {</pre></td></tr>
+<tr> <td class="numLineCover"> 76</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runnable.run();</pre></td></tr>
+<tr> <td class="numLine"> 77</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> } <span class="keyword">finally</span> {</pre></td></tr>
+<tr> <td class="numLineCover"> 78</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runningThread.compareAndSet(thisThread, <span class="keyword">null</span>);</pre></td></tr>
+<tr> <td class="numLineCover"> 79</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 80</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 81</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> </pre></td></tr>
+<tr> <td class="numLine"> 82</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
+<tr> <td class="numLine"> 83</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * Gives the opportunity to run {@code runnable} in a new thread if it is not</span></pre></td></tr>
+<tr> <td class="numLine"> 84</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * already running, but otherwise does nothing. This method will not call</span></pre></td></tr>
+<tr> <td class="numLine"> 85</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * {@code alreadyRunningRunnable}.</span></pre></td></tr>
+<tr> <td class="numLine"> 86</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> *</span></pre></td></tr>
+<tr> <td class="numLine"> 87</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * @return new thread if it was successfully started, {@code null} otherwise</span></pre></td></tr>
+<tr> <td class="numLine"> 88</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
+<tr> <td class="numLine"> 89</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> Thread runInNewThread() {</pre></td></tr>
+<tr> <td class="numLineCover"> 90</td> <td class="nbHitsCovered"> 7</td> <td class="src"><pre class="src"> Thread newThread = <span class="keyword">new</span> Thread(<span class="keyword">new</span> SetBackToNullRunnable());</pre></td></tr>
+<tr> <td class="numLineCover"> 91</td> <td class="nbHitsCovered"> 7</td> <td class="src"><pre class="src"> <span class="keyword">boolean</span> success = runningThread.compareAndSet(<span class="keyword">null</span>, newThread);</pre></td></tr>
+<tr> <td class="numLineCover"> 92</td> <td class="nbHitsCovered"><a title="Line 92: Conditional coverage 100% (2/2)."> 7</a></td> <td class="src"><pre class="src"> <a title="Line 92: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (!success) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 93</td> <td class="nbHitsCovered"> 4</td> <td class="src"><pre class="src"> <span class="keyword">return</span> <span class="keyword">null</span>;</pre></td></tr>
<tr> <td class="numLine"> 94</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> </pre></td></tr>
-<tr> <td class="numLine"> 95</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> Runnable getAlreadyRunningRunnable() {</pre></td></tr>
-<tr> <td class="numLineCover"> 96</td> <td class="nbHitsCovered"> 1</td> <td class="src"><pre class="src"> <span class="keyword">return</span> alreadyRunningRunnable;</pre></td></tr>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 95</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> newThread.start();</pre></td></tr>
+<tr> <td class="numLineCover"> 96</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> <span class="keyword">return</span> newThread;</pre></td></tr>
<tr> <td class="numLine"> 97</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 98</td> <td class="nbHits"> </td>
@@ -189,25 +195,63 @@
<tr> <td class="numLine"> 99</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
<tr> <td class="numLine"> 100</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> * @see #runInNewThread</span></pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * Prevent later executions of {@code runnable} and interrupt the currently</span></pre></td></tr>
<tr> <td class="numLine"> 101</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
-<tr> <td class="numLineCover"> 102</td> <td class="nbHitsCovered"> 10</td> <td class="src"><pre class="src"> <span class="keyword">private</span> <span class="keyword">class</span> SetBackToNullRunnable <span class="keyword">implements</span> Runnable {</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> * running thread, if any. It does not wait for the thread to actually</span></pre></td></tr>
+<tr> <td class="numLine"> 102</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * complete.</span></pre></td></tr>
<tr> <td class="numLine"> 103</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> @Override</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
<tr> <td class="numLine"> 104</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> run() {</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> stop() {</pre></td></tr>
<tr> <td class="numLine"> 105</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> <span class="keyword">try</span> {</pre></td></tr>
-<tr> <td class="numLineCover"> 106</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runnable.run();</pre></td></tr>
-<tr> <td class="numLine"> 107</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> } <span class="keyword">finally</span> {</pre></td></tr>
-<tr> <td class="numLineCover"> 108</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> runningThread.set(<span class="keyword">null</span>);</pre></td></tr>
-<tr> <td class="numLineCover"> 109</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLineCover"> 110</td> <td class="nbHitsCovered"> 2</td> <td class="src"><pre class="src"> }</pre></td></tr>
-<tr> <td class="numLine"> 111</td> <td class="nbHits"> </td>
- <td class="src"><pre class="src"> }</pre></td></tr>
+ <td class="src"><pre class="src"> <span class="comment">// Permanently set the runningThread to non-null by setting a new Thread</span></pre></td></tr>
+<tr> <td class="numLine"> 106</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment">// object that won't ever run. Effectively, this prevents future execution.</span></pre></td></tr>
+<tr> <td class="numLineCover"> 107</td> <td class="nbHitsCovered"> 26</td> <td class="src"><pre class="src"> Thread thread = runningThread.getAndSet(<span class="keyword">new</span> Thread());</pre></td></tr>
+<tr> <td class="numLineCover"> 108</td> <td class="nbHitsCovered"><a title="Line 108: Conditional coverage 100% (2/2)."> 26</a></td> <td class="src"><pre class="src"> <a title="Line 108: Conditional coverage 100% (2/2)."> <span class="keyword">if</span> (thread != <span class="keyword">null</span>) {</a></pre></td></tr>
+<tr> <td class="numLineCover"> 109</td> <td class="nbHitsCovered"> 6</td> <td class="src"><pre class="src"> thread.interrupt();</pre></td></tr>
+<tr> <td class="numLine"> 110</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 111</td> <td class="nbHitsCovered"> 26</td> <td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 112</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> </pre></td></tr>
+<tr> <td class="numLine"> 113</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> Runnable getRunnable() {</pre></td></tr>
+<tr> <td class="numLineCover"> 114</td> <td class="nbHitsCovered"> 4</td> <td class="src"><pre class="src"> <span class="keyword">return</span> runnable;</pre></td></tr>
+<tr> <td class="numLine"> 115</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 116</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> </pre></td></tr>
+<tr> <td class="numLine"> 117</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> Runnable getAlreadyRunningRunnable() {</pre></td></tr>
+<tr> <td class="numLineCover"> 118</td> <td class="nbHitsCovered"> 1</td> <td class="src"><pre class="src"> <span class="keyword">return</span> alreadyRunningRunnable;</pre></td></tr>
+<tr> <td class="numLine"> 119</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 120</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> </pre></td></tr>
+<tr> <td class="numLine"> 121</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment">/**</span></pre></td></tr>
+<tr> <td class="numLine"> 122</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> * @see #runInNewThread</span></pre></td></tr>
+<tr> <td class="numLine"> 123</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="comment"> */</span></pre></td></tr>
+<tr> <td class="numLineCover"> 124</td> <td class="nbHitsCovered"> 14</td> <td class="src"><pre class="src"> <span class="keyword">private</span> <span class="keyword">class</span> SetBackToNullRunnable <span class="keyword">implements</span> Runnable {</pre></td></tr>
+<tr> <td class="numLine"> 125</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> @Override</pre></td></tr>
+<tr> <td class="numLine"> 126</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">void</span> run() {</pre></td></tr>
+<tr> <td class="numLine"> 127</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> <span class="keyword">try</span> {</pre></td></tr>
+<tr> <td class="numLineCover"> 128</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> runnable.run();</pre></td></tr>
+<tr> <td class="numLine"> 129</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> } <span class="keyword">finally</span> {</pre></td></tr>
+<tr> <td class="numLineCover"> 130</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> runningThread.compareAndSet(Thread.currentThread(), <span class="keyword">null</span>);</pre></td></tr>
+<tr> <td class="numLineCover"> 131</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLineCover"> 132</td> <td class="nbHitsCovered"> 3</td> <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 133</td> <td class="nbHits"> </td>
+ <td class="src"><pre class="src"> }</pre></td></tr>
+<tr> <td class="numLine"> 134</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
</table>
diff --git a/coverage/com.google.enterprise.adaptor.SystemTimeProvider.html b/coverage/com.google.enterprise.adaptor.SystemTimeProvider.html
index 4eefc71..935cc87 100644
--- a/coverage/com.google.enterprise.adaptor.SystemTimeProvider.html
+++ b/coverage/com.google.enterprise.adaptor.SystemTimeProvider.html
@@ -58,7 +58,7 @@
<tr> <td class="numLineCover"> 20</td> <td class="nbHitsCovered"> 92</td> <td class="src"><pre class="src"> <span class="keyword">class</span> SystemTimeProvider <span class="keyword">implements</span> TimeProvider {</pre></td></tr>
<tr> <td class="numLine"> 21</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> <span class="keyword">public</span> <span class="keyword">long</span> currentTimeMillis() {</pre></td></tr>
-<tr> <td class="numLineCover"> 22</td> <td class="nbHitsCovered"> 345521</td> <td class="src"><pre class="src"> <span class="keyword">return</span> System.currentTimeMillis();</pre></td></tr>
+<tr> <td class="numLineCover"> 22</td> <td class="nbHitsCovered"> 326824</td> <td class="src"><pre class="src"> <span class="keyword">return</span> System.currentTimeMillis();</pre></td></tr>
<tr> <td class="numLine"> 23</td> <td class="nbHits"> </td>
<td class="src"><pre class="src"> }</pre></td></tr>
<tr> <td class="numLine"> 24</td> <td class="nbHits"> </td>
