[BUILDR-289] Improve error message when JAVA_HOME points to an invalid JRE/JDK installation

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.4
• Fix Version/s: 1.3.5
• Component/s: Core features
• Assignee: Daniel Spiewak
• Reporter: Daniel Spiewak
• Created: 23/Jun/09 17:48
• Updated: 22/Jun/11 10:10
• Resolved: 18/Sep/09 19:09

Description

Buildr uses the JAVA_HOME environment variable for a number of core tasks. However, if that variable does not point to a valid JDK, the result will be a failure at some point with a generally confusing error message (usually something on the order of " /bin/java does not exist"). We should actually check to make sure that JAVA_HOME is valid before attempting to use it for the first time. This check could be as simple as looking for rt.jar and a few of the executables.