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Jochen Stiepel commented on MNG-5025: ------------------------------------- for windows there is also a part in the startGroovy.bat http://svn.codehaus.org/groovy/trunk/groovy/groovy-core/src/bin/startGroovy.bat this could be added to the mvn.bat: {noformat} @REM ==== START VALIDATION ==== if not "%JAVA_HOME%" == "" goto OkJHome for %%P in (%PATH%) do if exist %%P\..\bin\java.exe set JAVA_HOME=%%P\.. if not "%JAVA_HOME%" == "" goto OkJHome echo ERROR: JAVA_HOME not found in your environment. echo Attempting to find JAVA_HOME from PATH also failed. echo Please set the JAVA_HOME variable in your environment to match the echo location of your Java installation echo. goto error {noformat} > CLONE - JAVA_HOME auto discovery - also for windows with mvn.bat > ---------------------------------------------------------------- > > Key: MNG-5025 > URL: http://jira.codehaus.org/browse/MNG-5025 > Project: Maven 2 & 3 > Issue Type: Improvement > Affects Versions: 3.0.2 > Environment: Linux, Ubuntu > Reporter: Jochen Stiepel > Priority: Minor > Attachments: mvn.bat > > > When JAVA_HOME is not set (but java command is in the PATH) then bin/mvn > script prints warning message "Warning: JAVA_HOME environment variable is > not set." > I don't want to explicitly set JAVA_HOME variable because I manage my JDK > instances by update-java-alternatives in Ubuntu. It switches system wide JDK, > but does not set the JAVA_HOME variable. If I would set JAVA_HOME manually > then any changes made by update-java-alternatives would not be reflected in > JAVA_HOME which is obviously incorrect. > However mvn script can be improved, so that it can guess JAVA_HOME. Actually > Groovy startup script does it very well, so I moved auto-discovery code from > groovy script to mvn and attach patch here -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://jira.codehaus.org/secure/Administrators.jspa - For more information on JIRA, see: http://www.atlassian.com/software/jira