Class com.google.common.util.concurrent.AbstractFuture

Changed Methods
String pendingToString()	Change in return type from String to java.lang.String.	Provide a human-readable explanation of why this future has not yet completed.
Throwable tryInternalFastPathGetFailure()	Change in return type from Throwable to java.lang.Throwable.	Usually returns {@code null} but, if this {@code Future} has failed, may optionally return the cause of the failure.