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batch-fileenvironment-variablesjava-home

SET JAVA_HOME in windows bat file not working

why is SET JAVA_HOME in this bat file not overriding the environment variable JAVA_HOME?

someFile.bat

@ECHO OFF
SET JAVA_HOME = Progra~2\Java\jdk1.6.0_23
echo JAVA_HOME: %JAVA_HOME%

OUTPUT

JAVA_HOME: C:\Program Files (x86)\Java\jdk1.7.0_21
Solution

  • because of the additional space.Try this to see the value you've set:

    echo JAVA_HOME: %JAVA_HOME %

    A robust way to set the java_home :

    SET "JAVA_HOME=Progra~2\Java\jdk1.6.0_23"