[incubator-kie-issues-1311] Various minor tweaks v7 features forward

[elguardian]

Closes: apache/incubator-kie-issues#1311

[kie-ci3]

PR job #1 was: UNSTABLE
Possible explanation: This should be test failures

Reproducer

build-chain build full_downstream -f 'https://raw.githubusercontent.com/${AUTHOR:apache}/incubator-kie-kogito-pipelines/${BRANCH:main}/.ci/buildchain-config-pr-cdb.yaml' -o 'bc' -p apache/incubator-kie-kogito-runtimes -u #3556 --skipParallelCheckout

NOTE: To install the build-chain tool, please refer to https://github.com/kiegroup/github-action-build-chain#local-execution

Please look here: https://ci-builds.apache.org/job/KIE/job/kogito/job/main/job/pullrequest_jobs/job/kogito-runtimes-pr/job/PR-3556/1/display/redirect

Test results:

• PASSED: 3258
• FAILED: 3

Those are the test failures:

org.jbpm.bpmn2.ActivityTest.testSubProcessWrongStartEvent

Expecting actual:
"Build Errors:
Error Messages:
Message [id=1, kieBase=defaultKieBase, level=ERROR, path=BPMN2-SubProcessWrongStartEvent.bpmn2, line=-1, column=0
text=Unable to load process. : Exception class java.io.FileNotFoundException : 'BPMN2-SubProcessWrongStartEvent.bpmn2' cannot be opened because it does not exist]
---
Warning Messages:
---
Info Messages:
"
to contain:
"Embedded subprocess can only have none start event."

org.jbpm.bpmn2.StartEventTest.testSignalStartWithTransformation

Build Errors:
Error Messages:
Message [id=1, kieBase=defaultKieBase, level=ERROR, path=BPMN2-SignalStartWithTransformation.bpmn2, line=-1, column=0
text=Unable to load process. : Exception class java.io.FileNotFoundException : 'BPMN2-SignalStartWithTransformation.bpmn2' cannot be opened because it does not exist]
---
Warning Messages:
---
Info Messages:

org.jbpm.bpmn2.StartEventTest.testSignalStartWithCustomEvent

Build Errors:
Error Messages:
Message [id=1, kieBase=defaultKieBase, level=ERROR, path=BPMN2-SingalStartWithCustomEvent.bpmn2, line=-1, column=0
text=Unable to load process. : Exception class java.io.FileNotFoundException : 'BPMN2-SingalStartWithCustomEvent.bpmn2' cannot be opened because it does not exist]
---
Warning Messages:
---
Info Messages: