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This feature is only available to backend instances.
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This feature is only available to backend instances.
via Google Groups by dab7 via StackOverflow, 4 months ago
This feature is only available to backend instances.
via Stack Overflow by dab7
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This feature is only available to backend instances.
java.lang.IllegalStateException: This feature is only available to backend instances.	at com.google.appengine.api.system.SystemServiceImpl.translateException(SystemServiceImpl.java:40)	at com.google.appengine.api.system.SystemServiceImpl.startBackgroundRequest(SystemServiceImpl.java:28)	at com.google.firebase.database.utilities.DefaultRunLoop$FirebaseThreadFactory.newThread(DefaultRunLoop.java:13)	at java.util.concurrent.ThreadPoolExecutor$Worker.(ThreadPoolExecutor.java:600)	at java.util.concurrent.ThreadPoolExecutor.addWorker(ThreadPoolExecutor.java:943)	at java.util.concurrent.ThreadPoolExecutor.ensurePrestart(ThreadPoolExecutor.java:1635)	at java.util.concurrent.ScheduledThreadPoolExecutor.delayedExecute(ScheduledThreadPoolExecutor.java:307)	at java.util.concurrent.ScheduledThreadPoolExecutor.schedule(ScheduledThreadPoolExecutor.java:526)	at com.google.firebase.database.connection.PersistentConnectionImpl.doIdleCheck(PersistentConnectionImpl.java:1098)	at com.google.firebase.database.connection.PersistentConnectionImpl.(PersistentConnectionImpl.java:266)	at com.google.firebase.database.core.GaePlatform.newPersistentConnection(GaePlatform.java:128)	at com.google.firebase.database.core.Context.newPersistentConnection(Context.java:195)	at com.google.firebase.database.core.Repo.(Repo.java:64)	at com.google.firebase.database.core.RepoManager.createLocalRepo(RepoManager.java:87)	at com.google.firebase.database.core.RepoManager.createRepo(RepoManager.java:28)	at com.google.firebase.database.FirebaseDatabase.ensureRepo(FirebaseDatabase.java:249)	at com.google.firebase.database.FirebaseDatabase.getReference(FirebaseDatabase.java:114)	at com.safran.contactify.backend.RunMeNowEndpoint.insert(RunMeNowEndpoint.java:105)	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)	at java.lang.reflect.Method.invoke(Method.java:44)	at com.google.api.server.spi.SystemService.invokeServiceMethod(SystemService.java:363)	at com.google.api.server.spi.SystemServiceServlet.execute(SystemServiceServlet.java:113)	at com.google.api.server.spi.SystemServiceServlet.doPost(SystemServiceServlet.java:71)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)	at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)	at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:511)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1166)	at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:48)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)	at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)	at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)	at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)	at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)	at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)	at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)	at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)	at org.mortbay.jetty.Server.handle(Server.java:326)	at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)	at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)	at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)	at com.google.tracing.TraceContext$TraceContextRunnable.runInContext(TraceContext.java:439)	at com.google.tracing.TraceContext$TraceContextRunnable$1.run(TraceContext.java:446)	at com.google.tracing.CurrentContext.runInContext(CurrentContext.java:256)	at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContextNoUnref(TraceContext.java:310)	at com.google.tracing.TraceContext$AbstractTraceContextCallback.runInInheritedContext(TraceContext.java:302)	at com.google.tracing.TraceContext$TraceContextRunnable.run(TraceContext.java:443)	at java.lang.Thread.run(Thread.java:745)