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テストでは、Search Serviceの実装でロックの競合に関する問題が発生することがあります。私は、次のようなエラーを参照してください。Google Appengine LocalSearchServiceはロックの競合によりテストに失敗します
Dec 30, 2017 6:09:28 PM com.google.appengine.api.search.dev.LocalSearchService indexDocumentForApp
SEVERE: Unable to access index
com.google.appengine.repackaged.org.apache.lucene.store.LockObtainFailedException: Lock obtain timed out: [email protected]/[path]/WEB-INF/appengine-generated/indexes/dGVzdA/Ym9va3Rh..P/write.lock
at com.google.appengine.repackaged.org.apache.lucene.store.Lock.obtain(Lock.java:85)
at com.google.appengine.repackaged.org.apache.lucene.index.IndexWriter.init(IndexWriter.java:1562)
at com.google.appengine.repackaged.org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1090)
at com.google.appengine.api.search.dev.LocalSearchService.getIndexWriter(LocalSearchService.java:800)
at com.google.appengine.api.search.dev.LocalSearchService.indexDocumentForApp(LocalSearchService.java:290)
at com.google.appengine.api.search.dev.LocalSearchService.indexDocument(LocalSearchService.java:268)
at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.invokeApiMethodJava(ApiProxyLocalImpl.java:604)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.callInternal(ApiProxyLocalImpl.java:559)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:516)
at com.google.appengine.tools.development.ApiProxyLocalImpl$AsyncApiCall.call(ApiProxyLocalImpl.java:488)
at java.util.concurrent.Executors$PrivilegedCallable$1.run(Executors.java:533)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.concurrent.Executors$PrivilegedCallable.call(Executors.java:530)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
これはテスト自体のいずれかの基本的な競合状態に関連すると思われるが、テストと妙が発生していません。誰もがこのバグの回避策を持っていますか?