Cannot drive neo4j-etl with my JAVA 8 environment

[yaowei2010]

Question

I would like to use the neo4j-etl tool with my RDMS database to do the ETL work, but I cannot drive the software because the response which I always got would be "check my JAVA environment".

I use the command from the tutorial: https://neo4j-contrib.github.io/neo4j-etl/#neo4j-etl-cli

./bin/neo4j-etl export \
  --rdbms:url jdbc:mysql://localhost:3306/northwind?autoReconnect=true&useSSL=false \
  --rdbms:user neo4j \
  --rdbms:password neo4j \
  --import-tool $NEO4J_HOME/bin \
  --options-file /tmp/northwind/options.json \
  --csv-directory /tmp/northwind \
  --destination /home/bioinfo/neo4j/data/databases/graph.db/ \
  --quote '"' --force

But what I got is :

- Illegal command (NullPointerException: null)

usage: neo4j-etl <command> [ <args> ]

Commands are:
    export                      Export from RDBMS and import into NEO4J via CSV files.
    generate-metadata-mapping   Create RDBMS to Neo4j metadata mapping Json.
    help                        Display help information

See 'neo4j-etl help <command>' for more information on a specific command.
It seems 'java' command is not available.
Please check your JAVA_HOME environment variable.
Also check if you have a valid Java 8 environment

I have check my java environment was 8 version.

I do not know why I always got the message.

Specifications (Mandatory)

Currently used versions

Versions

• OS: Rocky OS 9.3
• Library:
• Neo4j: neo4j docker image the latest version