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01-27-2020 04:23 AM
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: https://gist.github.com/shayantabrizi/8473df3aebb62077016a2d55203578c5
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.
01-27-2020 04:29 AM
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
01-27-2020 04:31 AM
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.
11-01-2020 08:05 AM
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
11-21-2020 09:48 PM
Unfortunately, no! I stopped upgrading.
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