3 commits

Author	SHA1	Message	Date
mcilwain	c0f8da0c6e	Switch from Guava Optionals to Java 8 Optionals ... This was a surprisingly involved change. Some of the difficulties included java.util.Optional purposely not being Serializable (so I had to move a few Optionals in mapreduce classes to @Nullable) and having to add the Truth Java8 extension library for assertion support. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=171863777	2017-10-24 16:53:47 -04:00
mcilwain	a50ef39c04	Fix mismatch in types of Predicates being used ... We're going to need to switch away from Guava's Functions and Predicates for everything and replace them with the java.util versions. Unfortunately there does not appear to be an automated tool to do this all at once. Refaster got close but doesn't seem to care about these particular types of mismatch (I suspect we're using a different version of the JDK than the outside world; ours is OK with Guava classes). This also bumps up Guava to 0.23, which is needed for some new functionality used in combination with Java 8 features. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=170531539	2017-10-04 16:16:45 -04:00
guyben	892424b148	Check if lock owner is finished on lock acquisition ... Sometimes requests "die" suddenly, without going through catch/finally blocks. If this happens, any lock they own will remain locked until it times out (which can take hours in some cases). This cl implicitly unlocks any lock if the owner of the lock isn't running anymore. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=168880938	2017-09-20 10:27:17 -04:00