Rewrite ExchangeRate to use BigDecimal for the quantity multiplication, to ensure that there is no loss of precision during the conversion process. The previous version using double-precision floating point maths inherently means that the precision is not fixed, but is floating.
Change ExchangeRate to an abstract class rather than an interface, so the functions on it can be implemented directly rather than being extension functions, to improve Java compatibility.
Move `ContentSignerBuilder` into `net.corda.node.utilities` so it's not part of the API visible to CorDapp developers, when it's only needed inside the node itself.
* Remove notify/notifyAll from public Vault Service API.
* 1st pass - remove ContractUpgrade public API calls from VaultService into self contained ContractUpgradeService.
* Fix compile error caused by cut'n'paste refactoring.
Remove CompositeSignaturesWithKeys class, as other refactors mean it is
now superfluous. Instead serialization of the TransactionSignature can
be used directly.
Work on database backed NetworkMapCache
Make NodeInfo JPA entity.
Enable node startup with it's database network map cache. Fix schema.
Make node not wait for finishing network map service registration if it
successfully loaded data from database.
Add tests for startup without NetworkMapService.
* Rename networkMapRegistrationFuture
Change networkMapRegistrationFuture to nodeReadyFuture, it no longer
indicates the NetworkMapService registration, because we are able to run
network without map service configured.
* Partially integrate database into NetworkMapCache
Full integrtion will come with service removal.
Move MockServiceHubInternal to net.corda.node.testing
* Add workaround to transaction scope race
Temporary workaround to force isolated transaction (otherwise it causes race conditions when processing
network map registration on network map node).
* Remove WorldMapLocation from NodeInfo
Infer the node's location based on X500 name
Add serial number on NodeInfo
For tests of running without NetworkMap, start nodes with nonexistent NetworkMap address
Make clearNetworkMapCache callable via RPC.
For future testing it would be nice, post serialisation, to have easy
access to the serialised objects schema so we can check how it was
serialised. Adding a helper function to return a data class that does
this in the same way we can for deserialize
