Hi there,

I am trying to run the sample found at https://docs.corda.net/docs/corda-os/4.7/tutorial-cordapp.html

I have successfully cloned the repo and generated the nodes with ./gradlew deployNodes
When attempting to java -jar runnodes.jar I get the following output:

$ java -jar runnodes.jar 
base debug port set to： 5005
base monitoring port set to: 7005
Starting nodes in /somewhere/samples-kotlin/Basic/cordapp-example/build/nodes
No file corda.jar found in /somewhere/samples-kotlin/Basic/cordapp-example/build/nodes/.cache
Starting corda.jar in /somewhere/samples-kotlin/Basic/cordapp-example/build/nodes/PartyA on debug port 5005
Node will expose jolokia monitoring port on 7005
Running command: xterm -T PartyA -e '/usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java' '-Dcapsule.jvm.args=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 -javaagent:drivers/jolokia-jvm-1.6.0-agent.jar=port=7005,logHandlerClass=net.corda.node.JolokiaSlf4jAdapter' '-Dname=PartyA' '-jar' '/somewhere/samples-kotlin/Basic/cordapp-example/build/nodes/PartyA/corda.jar'; [ $? -eq 0 -o $? -eq 143 ] || sh
Exception in thread "main" java.io.IOException: Cannot run program "xterm" (in directory "/somewhere/Basic/cordapp-example/build/nodes/PartyA"): error=2, No such file or directory
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
        at net.corda.plugins.NodeRunner.startWindowed(NodeRunner.kt:133)
        at net.corda.plugins.NodeRunner.startJar(NodeRunner.kt:94)
        at net.corda.plugins.NodeRunner.startNode(NodeRunner.kt:73)
        at net.corda.plugins.NodeRunner.run(NodeRunner.kt:56)
        at net.corda.plugins.NodeRunnerKt.main(NodeRunner.kt:43)
Caused by: java.io.IOException: error=2, No such file or directory
        at java.lang.UNIXProcess.forkAndExec(Native Method)
        at java.lang.UNIXProcess.<init>(UNIXProcess.java:247)
        at java.lang.ProcessImpl.start(ProcessImpl.java:134)
        at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
        ... 5 more

Some other useful info:

 $ java -version
openjdk version "1.8.0_282"
OpenJDK Runtime Environment (build 1.8.0_282-8u282-b08-0ubuntu1~20.04-b08)
OpenJDK 64-Bit Server VM (build 25.282-b08, mixed mode)

$ uname -a
Linux somebody 5.8.0-44-generic #50~20.04.1-Ubuntu SMP Wed Feb 10 21:07:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

The HTTP example is from years ago
https://github.com/corda/flow-http

There are better ways to do that now:
https://docs.corda.net/docs/corda-os/4.7/api-flows.html#calling-external-systems-inside-of-flows

Currently, the heartbeat occurs every second test waits for 6 seconds by sleeping the thread before observing the node's vault and the expected number of transactions is correct. 7 transactions - one for each second passed plus the initial one.

Successful CircleCI build

When I reduce the number of seconds to just 1 (8bf4101), I expected to have 2 transactions but instead, it's only the initial one.

Failed CircleCI build

A developer should be able to test any number of scheduled executions, including the minimal. Is this an issue with the testing approach or with Corda itself?

The last merge commit that updates config of the (Merge pull request #18 from corda/NOTICK-update-artifactory-hostnames : 3d28bb2) breaks samples-kotlin/Basic apps (tried yo-cordapp and cordapp-example) compiles. As Following errors printed:

`A problem occurred configuring root project 'cordapp-example'.

Could not resolve all artifacts for configuration ':classpath'.
Could not find org.jetbrains.kotlin:kotlin-gradle-plugin:1.2.71.
Searched in the following locations:

• file:/C:/Users/username/.m2/repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.71/kotlin-gradle-plugin-1.2.71.pom
• file:/C:/Users/username/.m2/repository/org/jetbrains/kotlin/kotlin-gradle-plugin/1.2.71/kotlin-gradle-plugin-1.2.71.jar
  Required by:
  project :

Could not find net.corda.plugins:cordapp:5.0.12.
Searched in the following locations:

• file:/C:/Users/username/.m2/repository/net/corda/plugins/cordapp/5.0.12/cordapp-5.0.12.pom
• file:/C:/Users/username/.m2/repository/net/corda/plugins/cordapp/5.0.12/cordapp-5.0.12.jar
  Required by:
  project :

Could not find net.corda.plugins:cordformation:5.0.12.
Searched in the following locations:

• file:/C:/Users/username/.m2/repository/net/corda/plugins/cordformation/5.0.12/cordformation-5.0.12.pom
• file:/C:/Users/username/.m2/repository/net/corda/plugins/cordformation/5.0.12/cordformation-5.0.12.jar
  Required by:
  project :

Could not find net.corda.plugins:quasar-utils:5.0.12.
Searched in the following locations:

• file:/C:/Users/username/.m2/repository/net/corda/plugins/quasar-utils/5.0.12/quasar-utils-5.0.12.pom
• file:/C:/Users/username/.m2/repository/net/corda/plugins/quasar-utils/5.0.12/quasar-utils-5.0.12.jar
  Required by:
  project :

Possible solution:

• Declare repository providing the artifact, see the documentation at https://docs.gradle.org/current/userguide/declaring_repositories.html`

The temporary solution that makes the projects compile: undoing the changes:

1. Basic/constant.properties, update the first line to old version:
   cordaReleaseGroup=net.corda

2. For cordapp-example, in gradle.build repositories undo comments:
   repositories {
   mavenCentral()
   jcenter()
   maven {
   url 'https://ci-artifactory.corda.r3cev.com/artifactory/corda-releases'
   }
   mavenLocal()
   }

The only queries in the samples are getting all states by class or using LinearStateQueryCriteria to get via id.

There are lots of other different query options available
https://docs.corda.net/docs/corda-os/4.8/api-vault-query.html#querycriteria-interface

The documentation is lacking in how to do some of these which has caused confusion:
https://stackoverflow.com/q/60342424/1000011

Hi, I am getting error while configuring sample source code application locally.
I am following the steps mentioned in official documentation link in given below.
Documentation Link: Run a sample CorDapp
I have upgraded the gradle to 7.3
and Kotlin version to 1.3 and after that when I run the command to deploy nodes as mentioned in documentation I am getting following error which is in "net.corda.plugins.cordformation" plugin.
Error is:

A problem was found with the configuration of task ':deployNodes' (type 'Cordform').

• In plugin 'net.corda.plugins.cordformation' type 'net.corda.plugins.Cordform' property 'directory' has @input annotation used on property of type 'Path'.

  Reason: A property of type 'Path' annotated with @input cannot determine how to interpret the file.

  Possible solutions:

  1. Annotate with @InputFile for regular files.
  2. Annotate with @InputDirectory for directories.
  3. If you want to track the path, return File.absolutePath as a String and keep @input.

  Please refer to https://docs.gradle.org/7.3/userguide/validation_problems.html#incorrect_use_of_input_annotation for more details about this problem.

Please Help me to configure the following code. Thanks in advance.

hi, I try to run our cordapp with corda enterprise. we already get enterprise jars, and its placed at private github repo like https://raw.githubusercontent.com/our_organization/enterprise-maven-repo/master. with that setting, say, how to modify build.gradle at https://github.com/corda/samples-kotlin/blob/master/Basic/cordapp-example/build.gradle ?

we change https://github.com/corda/samples-kotlin/blob/master/Basic/cordapp-example/build.gradle#L23 to our private repository, with proper github user and token and authentication block like

        maven {
            url "https://raw.githubusercontent.com/tts-tblock/corda-44-ee/master"
            credentials {
                username "$gh_user"
                password "$gh_token"
            }
            authentication {
                basic(BasicAuthentication)
            }            
        }

then add corda dependency like below

    cordaCompile "$corda_release_group:corda-core:$corda_release_version"
    cordaRuntime "$corda_enterprise_release_group:corda-node-api:$corda_release_version"
    cordaRuntime "$corda_enterprise_release_group:corda:$corda_release_version"
    cordaCompile "$corda_enterprise_release_group:corda-jackson:$corda_release_version"
    cordaCompile "$corda_enterprise_release_group:corda-rpc:$corda_release_version"

where $corda_enterprise_release_group is 'com.r3.corda', and $corda_release_group is 'net.corda', and $corda_release_version is our corda enterprise version. we run ./gradlew build, confirmed jar files our repository is downloaded.

but when we try to dump our dependency with gradle task like following,

task dumpCompileFiles() {
     println project.configurations.compile*.toURI()
}

corda-4.4.jar still points net.corda, not com.r3.corda like /Users/me/.gradle/caches/modules-2/files-2.1/net.corda/corda/4.4/2e287dcc676f08818e151dd6d4116f06246eb51f/corda-4.4.jar I think with corda enterprise, this path should be like /Users/me/.gradle/caches/modules-2/files-2.1/com.r3.corda/corda/4.4/3ea036905388aee52ba2cf8f445ed5eefce1c31b/corda-4.4.jar.

its correct result for the cordapp project built with corda enterprise?

regards,

Hi
When you create nodes using Cordform, after building the project (through ./gradlew deployNodes) and running nodes (through ./build/nodes/runnodes) you can test APIs by running each server, e,g, runPartyAServer by command ./gradlew runPartyAServer.
But if you use Dockerform to create nodes, after building the project (through ./gradlew prepareDockerNodes) and running nodes (through docker-compose up), execution of command ./gradlew runPartyAServer encounters an error like the following:

I 21:36:25 1 RPCClient.logElapsedTime - Failed Startup took 259 msec
W 21:36:25 1 AnnotationConfigServletWebServerApplicationContext.refresh - Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'controller' defined in file [.../clients/build/classes/java/main/net/corda/samples/example/webserver/Controller.class]: Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nodeRPCConnection': Invocation of init method failed; nested exception is net.corda.client.rpc.RPCException: Cannot connect to server(s). Tried with all available servers.

Hi Team,

I have observed that kotlin version and related gradle plugin version is out of date. Can we change version in the constants.properties in Basic folder ?

Thanks,
Kiran Sagar

[WARN ] 2020-06-28T17:07:32,899Z [Node thread-1] statemachine.StaffedFlowHospital. - Flow [d030fed8-7aed-4572-898c-87113f904482] failed to be finalised. Manual intervention may be required before retrying the flow by re-starting the node. State machine state: StateMachineState(checkpoint=Checkpoint(invocationContext=InvocationContext(origin=Peer(party=O=Dealer1, L=London, C=GB), trace=Trace(invocationId=83020683-934e-4403-885e-05de6adee765, timestamp: 2020-06-28T17:07:32.206Z, entityType: Invocation, sessionId=83020683-934e-4403-885e-05de6adee765, timestamp: 2020-06-28T17:07:32.206Z, entityType: Session), actor=null, externalTrace=null, impersonatedActor=null), ourIdentity=O=Dealer1, L=London, C=GB, sessions={SessionId(toLong=8733183490391616331)=Initiated(peerParty=O=Dealer1, L=London, C=GB, peerFlowInfo=FlowInfo(flowVersion=1, appName=workflows-0.1), receivedMessages=[], initiatedState=Ended, errors=[], deduplicationSeed=D-5024188133067598548--1998938707450972611)}, subFlowStack=[Inlined(flowClass=class com.t20worldcup.flows.DVPAccountsOnSameNodeResponder, subFlowVersion=CorDappFlow(platformVersion=6, corDappName=workflows-0.1, corDappHash=EBB028258DB3856FE015675021F9EC1CF30167E1F2A92D0CE92A880C38FA0F57), isEnabledTimedFlow=false)], flowState=Started(flowIORequest=Receive(sessions=[FlowSessionImpl(destination=O=Dealer1, L=London, C=GB, sourceSessionId=SessionId(toLong=8733183490391616331))]), frozenFiber=F7B1B6763206ED07939E04A5381376A21F50AE8865E0B3ADAA1298A02AE96585), errorState=Clean, numberOfSuspends=5), flowLogic=com.t20worldcup.flows.DVPAccountsOnSameNodeResponder@74aa4f10, pendingDeduplicationHandlers=[MessageDeduplicationHandler(DeduplicationId(toString=N-R-5024188133067598548--1998938707450972611-11-2))], isFlowResumed=true, isWaitingForFuture=false, isAnyCheckpointPersisted=true, isStartIdempotent=false, isRemoved=false, senderUUID=b428c568-f686-452d-a5d0-98158c79d883) [errorCode=1ggjwsp, moreInformationAt=https://errors.corda.net/OS/4.4/1ggjwsp] {fiber-id=10000014, flow-id=d030fed8-7aed-4572-898c-87113f904482, invocation_id=83020683-934e-4403-885e-05de6adee765, invocation_timestamp=2020-06-28T17:07:32.206Z, origin=O=Dealer1, L=London, C=GB, session_id=83020683-934e-4403-885e-05de6adee765, session_timestamp=2020-06-28T17:07:32.206Z, thread-id=426, tx_id=91BDEE1F7207EDB50D7260CAA9370A98944156A1581D0C8C204E4A78D6EA35F4}
net.corda.core.flows.UnexpectedFlowEndException: Tried to access ended session SessionId(toLong=8733183490391616331) with empty buffer
at net.corda.node.services.statemachine.FlowStateMachineImpl.fillInLocalStackTrace(FlowStateMachineImpl.kt:176) ~[corda-node-4.4.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.processEventsUntilFlowIsResumed(FlowStateMachineImpl.kt:164) ~[corda-node-4.4.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.suspend(FlowStateMachineImpl.kt:449) ~[corda-node-4.4.jar:?]
at net.corda.node.services.statemachine.FlowSessionImpl.receive(FlowSessionImpl.kt:67) ~[corda-node-4.4.jar:?]
at net.corda.node.services.statemachine.FlowSessionImpl.receive(FlowSessionImpl.kt:71) ~[corda-node-4.4.jar:?]
at net.corda.core.flows.ReceiveTransactionFlow.call(ReceiveTransactionFlow.kt:103) ~[corda-core-4.4.jar:?]
at net.corda.core.flows.ReceiveTransactionFlow.call(ReceiveTransactionFlow.kt:31) ~[corda-core-4.4.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.subFlow(FlowStateMachineImpl.kt:331) ~[corda-node-4.4.jar:?]
at net.corda.core.flows.FlowLogic.subFlow(FlowLogic.kt:338) ~[corda-core-4.4.jar:?]
at net.corda.core.flows.ReceiveFinalityFlow.call(FinalityFlow.kt:277) ~[corda-core-4.4.jar:?]
at net.corda.core.flows.ReceiveFinalityFlow.call(FinalityFlow.kt:272) ~[corda-core-4.4.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.subFlow(FlowStateMachineImpl.kt:331) ~[corda-node-4.4.jar:?]
at net.corda.core.flows.FlowLogic.subFlow(FlowLogic.kt:338) ~[corda-core-4.4.jar:?]
at com.t20worldcup.flows.DVPAccountsOnSameNodeResponder.call(DVPAccountsOnSameNode.kt:134) ~[?:?]
at com.t20worldcup.flows.DVPAccountsOnSameNodeResponder.call(DVPAccountsOnSameNode.kt:124) ~[?:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:271) ~[corda-node-4.4.jar:?]
at net.corda.node.services.statemachine.FlowStateMachineImpl.run(FlowStateMachineImpl.kt:46) ~[corda-node-4.4.jar:?]
at co.paralleluniverse.fibers.Fiber.run1(Fiber.java:1092) ~[quasar-core-0.7.12_r3-jdk8.jar:0.7.12_r3]
at co.paralleluniverse.fibers.Fiber.exec(Fiber.java:788) ~[quasar-core-0.7.12_r3-jdk8.jar:0.7.12_r3]
at co.paralleluniverse.fibers.RunnableFiberTask.doExec(RunnableFiberTask.java:100) ~[quasar-core-0.7.12_r3-jdk8.jar:0.7.12_r3]
at co.paralleluniverse.fibers.RunnableFiberTask.run(RunnableFiberTask.java:91) ~[quasar-core-0.7.12_r3-jdk8.jar:0.7.12_r3]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[?:1.8.0_251]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) ~[?:1.8.0_251]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) ~[?:1.8.0_251]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) ~[?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[?:1.8.0_251]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[?:1.8.0_251]
at net.corda.node.utilities.AffinityExecutor$ServiceAffinityExecutor$1$thread$1.run(AffinityExecutor.kt:63) ~[corda-node-4.4.jar:?]

The tictacthor sample has a commented out section where the signer verification should be
https://github.com/corda/samples-kotlin/blob/master/Accounts/tictacthor/contracts/src/main/kotlin/net/corda/samples/tictacthor/contracts/BoardContract.kt#L54-L56

            // Signatures
            // TODO: Should only the initiating party sign?
            //"Both participants must sign a SubmitTurn transaction." using (command.signers == outputBoardState.participants.map { it.owningKey })

You need to take into consideration that there could be multiple accounts on multiple nodes and any of the accounts could be transacting with each other so checking the host.owningKey isn't a valid check as that could allow an account to transact with itself.

The other issue is that the AccountSDK keys change all the time.
corda/accounts#50

Hi, we are using your repo for sample contracts, we provide link to this repo because of that.
But we can't use word master in our project, can you release a tag with different name or probably some version, so that we can use it in the link?
Thanks.

negotiation-cordapp README says

Running the nodes:

Open a terminal and go to the project root directory and type: (to deploy the nodes using bootstrapper)

./gradlew clean deployNodes

Then type: (to run the nodes)

./build/nodes/runnodes

However
./build/nodes/runnodes is not created.