Already filed an issue about this
at:
https://code.google.com/p/googleappengine/issues/detail?id=12945&thanks=12945&ts=1462375553
On Wednesday, May 4, 2016 at 6:28:15 PM UTC+3, Miroslav Genov wrote:
>
> Hello,
>
>
> GAE Java SDK: 1.9.36
>
> The following test shows that LocalServiceTestHelper is creating a new thread
> on each setUp which is not closed on tearDown which leads to memory leak.
>
> @Test
> public void happyPath() {
> final LocalServiceTestHelper helper = new LocalServiceTestHelper(
> new LocalSearchServiceTestConfig(),
> new LocalDatastoreServiceTestConfig().setApplyAllHighRepJobPolicy()
>
> );
>
> for (int i = 0; i < 3000000;i++) {
> helper.setUp();
>
> helper.tearDown();
> }
> }
>
> The following snippet is crashing with:
>
> java.lang.OutOfMemoryError: unable to create new native thread
> at java.lang.Thread.start0(Native Method)
> at java.lang.Thread.start(Thread.java:714)
> at
> java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:949)
> at
> java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1590)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:333)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor.scheduleWithFixedDelay(ScheduledThreadPoolExecutor.java:594)
> at
> com.google.appengine.api.datastore.dev.LocalDatastoreService.startInternal(LocalDatastoreService.java:593)
> at
> com.google.appengine.api.datastore.dev.LocalDatastoreService.access$300(LocalDatastoreService.java:146)
> at
> com.google.appengine.api.datastore.dev.LocalDatastoreService$2.run(LocalDatastoreService.java:582)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> com.google.appengine.api.datastore.dev.LocalDatastoreService.start(LocalDatastoreService.java:579)
> at
> com.google.appengine.tools.development.ApiProxyLocalImpl.startServices(ApiProxyLocalImpl.java:624)
> at
> com.google.appengine.tools.development.ApiProxyLocalImpl.access$700(ApiProxyLocalImpl.java:47)
> at
> com.google.appengine.tools.development.ApiProxyLocalImpl$2.run(ApiProxyLocalImpl.java:604)
> at
> com.google.appengine.tools.development.ApiProxyLocalImpl$2.run(ApiProxyLocalImpl.java:601)
> at java.security.AccessController.doPrivileged(Native Method)
> at
> com.google.appengine.tools.development.ApiProxyLocalImpl.getService(ApiProxyLocalImpl.java:600)
> at
> com.google.appengine.tools.development.testing.LocalServiceTestHelper.getLocalService(LocalServiceTestHelper.java:589)
> at
> com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig.getLocalDatastoreService(LocalDatastoreServiceTestConfig.java:295)
> at
> com.google.appengine.tools.development.testing.LocalDatastoreServiceTestConfig.tearDown(LocalDatastoreServiceTestConfig.java:289)
> at
> com.google.appengine.tools.development.testing.LocalServiceTestHelper.tearDownService(LocalServiceTestHelper.java:548)
> at
> com.google.appengine.tools.development.testing.LocalServiceTestHelper.tearDown(LocalServiceTestHelper.java:520)
>
>
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