[#JRUBY-2301] JRuby script would work when java is installed but JAVA_HOME not set

JRuby

JRuby script would work when java is installed but JAVA_HOME not set

Created: 20/Mar/08 11:35 AM Updated: 20/Mar/08 11:59 AM

Component/s:

None

Affects Version/s:

JRuby 1.1RC2, JRuby 1.1RC3

Fix Version/s:

None

Time Tracking:

Not Specified

File Attachments:	1. jruby_vars.diff (0.7 kb)
Environment:	Windows

Description

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If you have java in your PATH, but did not set JAVA_HOME (a surprisingly common way of installing java) in windows, an attempt to run the Jruby script results in an error that JAVA_HOME as not set, then the script exits.

Since many people 'install' java simply by making it so that running 'java' from commandline works, it would be nice if this script were able to fall through and just use whatever is on the path if JAVA_HOME is not set.

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Rod Hilton - 20/Mar/08 11:55 AM

Here is a patch for the problem.

Essentially all it does is, right before the normal point of giving up and bailing, it searches the %PATH% variable for java.exe and, if found, sets JAVA_HOME, then proceeds as normal.

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Rod Hilton - 20/Mar/08 11:59 AM

It's worth mentioning that this patch does NOT solve the related defect noted here:

http://jira.codehaus.org/browse/JRUBY-2302