The dynamic compilation an loading of kotlin script prevents the reloading of the same cba, since the classloader hold on to the folder where the jar was produced. 

This makes the features pretty much unusable during development as it requires a CDS reboot to be able to redeploy a CBA. 

It seems the compilation happens in a different folder than cleanup : 

During compile/classloading : 
13:58:45.378 [reactor-http-epoll-4] INFO o.o.c.c.c.core.scripts.BluePrintClassLoader - loading compiled cache(/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1)
 
During cleanup in cba redeploy:
14:00:06.171 [reactor-http-epoll-2] WARN o.o.c.c.c.core.scripts.BluePrintCompileCache - No compiled cache(/opt/app/onap/blueprints/working/b221aa72-706b-418e-9a16-41e85
e9cac2c) present to clean.

 
I changed the code to try to cleanup at the right place an it does, but still holds lock on the folder hosting the jar :
 
14:00:06.174 [reactor-http-epoll-2] INFO o.o.c.c.c.core.scripts.BluePrintCompileCache - Cleaned compiled cache(/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1)
/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin not empty
/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts not empty
/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1 not empty
 
I changed the cleanup code in BlueprintProcessorCatalogServiceImpl to make it more explicit:
 
cds-backend | 14:00:11.321 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin/PnfIps.kt
cds-backend | 14:00:11.324 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin/stream5-bgp-1.0.1-cba-kts.jar
cds-backend | 14:00:11.325 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin/stream5-bgp-1.0.1-cba-kts.jar
cds-backend | 14:00:11.326 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin
cds-backend | /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/kotlin not empty
cds-backend | 14:00:11.331 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/python/Commit.py
cds-backend | 14:00:11.332 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/python/Commit.py
cds-backend | 14:00:11.332 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/python
cds-backend | 14:00:11.334 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts/python
cds-backend | 14:00:11.334 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts
cds-backend | /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Scripts not empty
cds-backend | 14:00:11.342 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/bgp-day0-mapping.json
cds-backend | 14:00:11.344 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/bgp-day0-mapping.json
cds-backend | 14:00:11.346 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/bgp-day0-template.vtl
cds-backend | 14:00:11.349 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/bgp-day0-template.vtl
cds-backend | 14:00:11.351 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/isis-mapping.json
cds-backend | 14:00:11.352 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/isis-mapping.json
cds-backend | 14:00:11.354 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/isis-template.j2
cds-backend | 14:00:11.355 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates/isis-template.j2
cds-backend | 14:00:11.355 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates
cds-backend | 14:00:11.358 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Templates
cds-backend | 14:00:11.361 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests/cba-tests.http
cds-backend | 14:00:11.362 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests/cba-tests.http
cds-backend | 14:00:11.364 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests/pre-requisites.http
cds-backend | 14:00:11.365 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests/pre-requisites.http
cds-backend | 14:00:11.365 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests
cds-backend | 14:00:11.367 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/Tests
cds-backend | 14:00:11.371 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/TOSCA-Metadata/TOSCA.meta
cds-backend | 14:00:11.373 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/TOSCA-Metadata/TOSCA.meta
cds-backend | 14:00:11.373 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/TOSCA-Metadata
cds-backend | 14:00:11.376 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleted- file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/TOSCA-Metadata
cds-backend | 14:00:11.376 [reactor-http-epoll-2] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - Deleting file/dir /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1
cds-backend | /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1 not empty
cds-backend | 14:00:11.688 [reactor-http-epoll-2] WARN o.o.c.c.c.core.scripts.BluePrintCompileCache - No compiled cache(/opt/app/onap/blueprints/working/b221aa72-706b-418e-9a16-41e85e9cac2c) present to clean.
cds-backend | 14:00:18.478 [reactor-http-epoll-3] INFO c.o.c.c.b.selfservice.api.ExecutionServiceHandler - processing request id 123456
cds-backend | 14:00:18.484 [reactor-http-epoll-3] INFO c.o.c.c.b.db.BlueprintProcessorCatalogServiceImpl - cba file name(stream5-bgp), version(1.0.1) already present(/opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1)
cds-backend | 14:00:18.484 [reactor-http-epoll-3] INFO c.o.c.c.b.selfservice.api.ExecutionServiceHandler - blueprint base path /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1
cds-backend | 14:00:18.490 [reactor-http-epoll-3] ERROR c.o.c.c.b.selfservice.api.ExecutionServiceHandler - fail processing request id 123456
cds-backend | java.io.FileNotFoundException: /opt/app/onap/blueprints/deploy/stream5-bgp/1.0.1/TOSCA-Metadata/TOSCA.meta (No such file or directory)
cds-backend | at java.io.FileInputStream.open0(Native Method)
cds-backend | at java.io.FileInputStream.open(FileInputStream.java:195)
cds-backend | at java.io.FileInputStream.(FileInputStream.java:138)
cds-backend | at kotlin.io.FilesKt__FileReadWriteKt.forEachLine(FileReadWrite.kt:166)
cds-backend | at kotlin.io.FilesKt__FileReadWriteKt.readLines(FileReadWrite.kt:195)
cds-backend | at org.onap.ccsdk.cds.controllerblueprints.core.FileExtensionFunctionsKt$readNBLines$2.invokeSuspend(FileExtensionFunctions.kt:107)
cds-backend | at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
cds-backend | at kotlinx.coroutines.DispatchedTask.run(Dispatched.kt:238)
cds-backend | at kotlinx.coroutines.scheduling.CoroutineScheduler.runSafely(CoroutineScheduler.kt:594)
cds-backend | at kotlinx.coroutines.scheduling.CoroutineScheduler.access$runSafely(CoroutineScheduler.kt:60)
cds-backend | at kotlinx.coroutines.scheduling.CoroutineScheduler$Worker.run(CoroutineScheduler.kt:742)