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Tag: neo4j

How to downgrade JDK?

Currently my Java version is 17. Neo4j requires me to install Java 11 or OpenJDK 11, or else it will give the error java.lang.IllegalAccessException: module java.base does not open java.nio to unnamed module @1817d444. I guess I need to downgrade to JDK 11. Java Platform, Standard Edition 11 Reference Implementations is the only place I can get JDK 11. However

import org.neo4j cannot be resolved?

I am very new to Neo4j and I’d like to get started with an embedded Neo4j in a Java Application. I try to run a HelloWorld Application as follows. } The Pom code is as follows. Unfortunately I cannot run the code it raises “Exception in thread “main” java.lang.Error: Unresolved compilation problem: at HelloWorldExample.main(”. Additionally, when hovering over the import

Memory map for Neo4j embedded

When using Neo4j in the embedded mode (Java API), one can manually set memory map settings using the following API calls (or similar): My question is: Is the mapped memory allocated out of Java heap/extended memory or from the rest of the memory available. I know that for Neo4j server the latter is correct as long as it is run