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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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| .. | ||
| attachment-demo | ||
| bank-of-corda-demo | ||
| cordapp-configuration | ||
| irs-demo | ||
| network-verifier | ||
| notary-demo | ||
| simm-valuation-demo | ||
| trader-demo | ||
| README.md | ||
Sample applications
Please refer to README.md in the individual project folders. There are the following demos:
- attachment-demo A simple demonstration of sending a transaction with an attachment from one node to another, and then accessing the attachment on the remote node.
- irs-demo A demo showing two nodes agreeing to an interest rate swap and doing fixings using an oracle.
- trader-demo A simple driver for exercising the two party trading flow. In this scenario, a buyer wants to purchase some commercial paper by swapping his cash for commercial paper. The seller learns that the buyer exists, and sends them a message to kick off the trade. The seller, having obtained his CP, then quits and the buyer goes back to waiting. The buyer will sell as much CP as he can! We recommend starting with this demo.
- simm-valuation-demo A demo showing two nodes reaching agreement on the valuation of a derivatives portfolio.
- notary-demo A simple demonstration of a node getting multiple transactions notarised by a single or distributed (Raft or BFT SMaRt) notary.
- bank-of-corda-demo A demo showing a node acting as an issuer of fungible assets (initially Cash)
- network-verifier A very simple CorDapp that can be used to test that communication over a Corda network works.