Neo4j 4.0 problem with apoc

Neo4j Graph Platform Procedures & APOC
1

After upgrading to Neo4j 4.0.0, a problem is occurred when apoc is added to my dependencies. In a maven project with only a Main file with the following content:

package mypackage;

import org.neo4j.configuration.GraphDatabaseSettings;
import org.neo4j.configuration.connectors.BoltConnector;
import org.neo4j.dbms.api.DatabaseManagementService;
import org.neo4j.dbms.api.DatabaseManagementServiceBuilder;
import org.neo4j.graphdb.GraphDatabaseService;

import java.io.File;

public class Main {
	public static void main(String[] args) {
		        DatabaseManagementService managementService = new DatabaseManagementServiceBuilder( new File("c:\\temp" ))
                .setConfig( BoltConnector.enabled, true )
                .build();
        GraphDatabaseService graphDb = managementService.database( GraphDatabaseSettings.DEFAULT_DATABASE_NAME );
		System.out.println("test");
	}
}

if I only have neo4j 4.0.0 in my dependencies, I get no errors. But, when I add

        <dependency>
            <groupId>org.neo4j.procedure</groupId>
            <artifactId>apoc</artifactId>
            <version>4.0.0.0</version>
        </dependency>

to my dependencies, I get:

java.lang.RuntimeException: Error starting database server at ...
...
Caused by: java.lang.NoClassDefFoundError: org/apache/commons/text/lookup/StringLookup

Here is my pom.xml: POM for my question · GitHub

There seems to be a version conflict at commons-text (Its version is 1.2 in apoc, but the version used in neo4j-common seems to be 1.7).

I tried it in both Windows and Linux under Java 11.

1 Like
2

Hi,
try to run call apoc.help('apoc') in Neo4j. If it does not gives list of apoc function then it mean your APOC installation is not good.
https://neo4j.com/docs/labs/apoc/current/introduction/#installation

Regards
Vivek

3

This is not about Neo4j desktop. I want to use APOCs in Java. It used to work before upgrading Neo4j. Unfortunately, your answer does not seem to apply to my case.

2 Likes
4

Hi shayan,
did you solve the problem? I ran into an other problem with the apoc dependency does not even appear in the dependencies in eclipse.

regards
Thomas

5

Unfortunately, no! I stopped upgrading.