System getenv() is giving null in ubuntu, same code working in mac

Question

I am new to Java. I am using System.getenv("SPARK_HOME") to get the spark home path in given machine. When the Java application runs on ubuntu machine it gives null. The above property is set in bashrc (did source .bashrc). Tested through echo $SPARK_HOME which prints the value and also with printenv |grep SPARK_HOME.

I referred this answer, but it dint help to solve my problem.

How are you invoking Java? If it's not from an interactive, non-login shell, bashrc wouldn't have been run. — Andy Turner, Feb 28 '18 at 19:10

score 1 · Accepted Answer · edited Mar 29 '19 at 10:18

1

Before running the jar run the following command:

$ source ~/.bashrc

$ java -jar myJar.java

edited Mar 29 '19 at 10:18

Ömer Erden

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answered Mar 01 '18 at 05:22

Phaneendra B

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This worked, java application now able to get the system environment properties – Sunil Rao Mar 01 '18 at 05:25

System getenv() is giving null in ubuntu, same code working in mac

1 Answers1