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Checkpoint dumping of paused flows was not working because the dumper expects a flow to have a `FlowState` of `Unstarted` or `Started`, however due to a memory optimisation paused flows have their `FlowState` set to `Paused`. This was causing causing an exception as well as a loss of potentially useful information. A flag `alwaysDeserializeCheckpoint` has been added to `Checkpoint.Serialized.deserialize` which skips the memory optimisation and forces the deserialization of the flow's `FlowState`. Paused flows are now included in the dumped output along with their real `FlowState` which is useful to users even if the flow is paused rather than waiting for something to complete. The status of the flow has also been added to the JSON output to assist users in debugging their flows.
Corda
Corda is an open source blockchain project, designed for business from the start. Only Corda allows you to build interoperable blockchain networks that transact in strict privacy. Corda's smart contract technology allows businesses to transact directly, with value.
Features
- Smart contracts that can be written in Java and other JVM languages
- Flow framework to manage communication and negotiation between participants
- Peer-to-peer network of nodes
- "Notary" infrastructure to validate uniqueness and sequencing of transactions without global broadcast
- Enables the development and deployment of distributed apps called CorDapps
- Written in Kotlin, targeting the JVM
Getting started
- Read the Getting Started documentation
- Run the Example CorDapp
- Read about Corda's Key Concepts
- Follow the Hello, World! tutorial
Useful links
- Project Website
- Mailing List
- Documentation
- Stack Overflow Tag
- Slack Channel
- Meetups
- Training Courses
Contributing
Corda is an open-source project and contributions are welcome!
To find out how to contribute, please see our contributing docs.
License
Acknowledgements
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