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Major changes due to JDK 17: 1. JDK17 JCE Provider now has built-in support for eddsas, corda uses the bouncycastle (i2p) implementation. This PR removes the conflicting algorithms from the built-in JCE provider. 2. JavaScript scripting has been removed from the JDK, the corda log4j config was using scripting to conditionally output additional diagnostic info if the MDC was populated. This PR has removed the scripting. 3. The artifactory plug-ins used are now deprecated, this PR has removed them and uses the same code as Corda 5 for publishing to artifactory. 4. Javadoc generation has been modified to use the latest dokka plug-ins. 5. Gradle 7.6 has implemented an incredibly annoying change where transitive dependencies are not put on the compile classpath, so that they have to be explicitly added as dependencies to projects. 6. Mockito has been updated, which sadly meant that quite a few source files have to changes to use the new (org.mockito.kotlin) package name. This makes this PR appear much larger than it is. 7. A number of tests have been marked as ignored to get a green, broadly they fall into 3 classes. The first is related to crypto keypair tests, it appears some logic in the JDK prefers to use the SunJCE implementation and we prefer to use bouncycastle. I believe this issue can be fixed with better test setup. The second group is related to our use of a method called "uncheckedCast(..)", the purpose of this method was to get rid of the annoying unchecked cast compiler warning that would otherwise exist. It looks like the Kotlin 1.9 compiler type inference differs and at runtime sometimes the type it infers is "Void" which causes an exception at runtime. The simplest solution is to use an explicit cast instead of unchecked cast, Corda 5 have removed unchecked cast from their codebase. The third class are a number of ActiveMQ tests which appear to have a memory leak somewhere. |
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Node Explorer
The node explorer provides views of the node's vault and transaction data using Corda's RPC framework. The user can execute cash transaction commands to issue and move cash to other parties on the network or exit cash using the user interface.
Running the UI
Windows:
gradlew.bat tools:explorer:run
Other:
./gradlew tools:explorer:run
Running Demo Nodes
Node Explorer is included with the DemoBench application, which allows you to create local Corda networks on your desktop. For example:
* Notary
* Bank of Breakfast Tea (*Issuer node* for GBP)
* Bank of Big Apples (*Issuer node* for USD)
* Alice (*Participant node* for user Alice)
* Bob (*Participant node* for user Bob)
DemoBench will deploy all nodes with Corda's Finance CorDapp automatically, and allow you to launch an instance of Node Explorer for each.
TODOs:
- Shows more useful information in the dashboard.
- Improve Network View, display other nodes in the world map and show transactions between them.
- Add a new view showing node's state machines.
- Link transaction input to its originated transaction to make it easier to trace back.
- Shows Node information (Configuration, properties etc.) in Settings view.
- Support other contract types.
More information can be found in the Project website and Documentation.