/guava/guava/src/com/google/common/util/concurrent/AbstractExecutionThreadService.java
delegate.startAsync ( ) ; return this;
public final Throwable failureCause() { return delegate.failureCause(); } @CanIgnoreReturnValue @Override public final Service startAsync() { <extra_id_0> } @CanIgnoreReturnValue @Override public final Service stopAsync() { delegate.stopAsync(); return this;