What is a "storage engine"?

Drivers & Stacks Java
1

I'm getting an exception trying to run an embedded Neo4j database in Java/Scala, and haven't been able to come up with a search that would shed any light on what the problem is:

Caused by: java.lang.IllegalArgumentException: No storage engine matching name 'record'. Available storage engines are:
at org.neo4j.storageengine.api.StorageEngineFactory.lambda$defaultStorageEngine$2(StorageEngineFactory.java:447)
at java.base/java.util.Optional.orElseThrow(Optional.java:403)
at org.neo4j.storageengine.api.StorageEngineFactory.defaultStorageEngine(StorageEngineFactory.java:443)
at org.neo4j.storageengine.api.StorageEngineFactory.lambda$selectStorageEngine$5(StorageEngineFactory.java:505)
at java.base/java.util.Optional.orElseGet(Optional.java:364)
at org.neo4j.storageengine.api.StorageEngineFactory.selectStorageEngine(StorageEngineFactory.java:504)
at org.neo4j.kernel.database.DatabaseCreationContext.selectStorageEngine(DatabaseCreationContext.java:150)
at org.neo4j.dbms.database.DefaultDatabaseContextFactory$Creator.(DefaultDatabaseContextFactory.java:82)
at org.neo4j.dbms.database.DefaultDatabaseContextFactory.create(DefaultDatabaseContextFactory.java:72)
at org.neo4j.dbms.database.DefaultDatabaseContextFactory.create(DefaultDatabaseContextFactory.java:46)
at org.neo4j.dbms.database.DatabaseLifecycles.createDatabase(DatabaseLifecycles.java:95)
at org.neo4j.dbms.database.DatabaseLifecycles$SystemDatabaseStarter.init(DatabaseLifecycles.java:138)
at org.neo4j.kernel.lifecycle.LifeSupport$LifecycleInstance.init(LifeSupport.java:323)
... 73 more

2

Hello, can you share the version of Neo4j that you are using and the code that starts the embedded instance? Thanks a lot!

3

I must have been suffering some kind of odd class path or dependency issue.

I reviewed the Gradle dependencies and rebuilt its cache and it seems to be working now.

Thank you.