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java.lang.NullPointerException at abs.backend.java.lib.runtime.ABSFutureGuard.isTrue(ABSFutureGuard.java:21) at abs.backend.java.lib.runtime.ABSRuntime.await(ABSRuntime.java:344) at NullFut.C_c.start(C_c.java:77) at NullFut.Main$1.execute(Main.java:34) at abs.backend.java.lib.runtime.Task.run(Task.java:190) at abs.backend.java.scheduling.DefaultTaskScheduler$SchedulerThread.run(DefaultTaskScheduler.java:82)