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) -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-appengine+unsubscr...@googlegroups.com. To post to this group, send email to google-appengine@googlegroups.com. Visit this group at https://groups.google.com/group/google-appengine. To view this discussion on the web visit https://groups.google.com/d/msgid/google-appengine/59812106-edf0-43bb-bd28-4a6a9b66687f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.