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POGWT memory leak link to request builder( generated by GWTP Action Server Call )
 

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  1. POGWT memory leak link to request builder( generated by GWTP Action Server Call )
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    <p>Found in GWT Release:</p> <p>GWT - 2.4.0</p> <p>Encountered on OS / Browser :</p> <p>Windows 7 with IE9</p> <p>Detailed description (please be as specific as possible):</p> <p>Out Of Heap exception occurred after left GWT App to run overnight, Diagnosis with MemoryAnalyzer, found that upon crash there are 1.6 million instance of com.google.gwt.http.client.RequestBuilder , each size exactly at 1208 bytes.</p> <p>Further checking reveal to me that those request are GWT Action call to server to poll current server health status. poll trigger by com.google.gwt.user.client.Timer every 1 sec</p> <p>Shortest code snippet which demonstrates issue:</p> <pre><code>@Inject public MainPresenter(final EventBus eventBus, final MyView view, final MyProxy proxy, PlaceManager placeManager, final DispatchAsync dispatcher) { super(eventBus, view, proxy); this.placeManager = placeManager; this.dispatcher = dispatcher; getView().setUiHandlers(this); setupSeverHealthQuerier(dispatcher); } private void setupSeverHealthQuerier(final DispatchAsync dispatcher) { int delayInSec = UserPreference.HealthCheckInterval; serverHealthChecker = new Timer() { @Override public void run() { dispatcher.execute(new GetServerHealth(ServerName.ReplayServerGTU), new AsyncCallback&lt;GetServerHealthResult&gt;() { @Override public void onFailure(Throwable caught) { caught.printStackTrace(); } @Override public void onSuccess(GetServerHealthResult result) { getView().setServerHealthPic(result.getHealth()); } }); } }; serverHealthChecker.scheduleRepeating(delayInSec * 1000); } </code></pre> <p>Here is the Heap Report:</p> <p><a href="http://i.stack.imgur.com/C2qJy.png" rel="nofollow">http://i.stack.imgur.com/C2qJy.png</a></p> <ul> <li>thanks for the 10 reputation-to-post-image rule</li> </ul>
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    1. USBen.Yan
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    1. COoops, So my question is why those request builder are still in heap left to build up, and how can i solve the memory leak problem. Thanks for the help in advance
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      1. POGWT memory leak link to request builder( generated by GWTP Action Server Call )
      1. USBen.Yan
 

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