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Editorial Team
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Asked: 2026-05-23T03:55:26+00:00

I have Eclipse Helios with a java program set up. I’m attempting to create

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I have Eclipse Helios with a java program set up. I’m attempting to create two environment variables

ReportingManagerHome=C:\rp
ReportingManagerConfig=${ReportingManagerHome}\config

I then run my program with

System.out.println(System.getenv(“ReportingManagerConfig”));

Eclipse doesn’t even call the java compiler. It throws up a pop up window with the error that environment variable ReportingManagerHome is not defined. I understand that since the java compiler has yet to be called, technically Eclipse is correct.

Now how do I work around this so that I can define cascading environment variables in Eclipse?

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1 Answer

  1. Editorial Team

    It won’t recursively expand environment variables from the launch config.

    Even using ${env:VAR} takes it from the environment variables from your eclipse process, not from your current launch config.

    The most reliable way to do it is to go to Preferences>Run/Debug>String Substitution and define an eclipse variable there.

    Then define the environment variables in your launch config:

    ReportingManagerHome=${RMH}
ReportingManagerConfig=${RMH}\config
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