If anybody else is having the cannot create a JVM error after upgrading Java
on a Mac, and you are on Jira, please vote for issue 549
https://issues.apache.org/jira/browse/BUILDR-549.
Also, there is a workaround described in that bug, try it and see if it
helps you until a regular patch is available. It worked for me.
Essentially it is (for Buildr 1.4.3):
1. Finding the most recent version of the header files in Finder and putting
them into $JAVA_HOME/include (these will probably be the correct ones--the
latest Java installation removes them!). Make a backup!
2. uninstalling the RJB gem and installing version 1.3.3 only
3. editing the* buildr-1.4.3.gemspec *file to require a version GREATER
THAN 1.25, instead of 1.2.5. (Replacing '= 1.2.5' with '>= 1.2.5' here's the
list of changes:
/Library/Ruby/Gems/1.8/specifications $ grep rjb buildr-1.4.3.gemspec | grep
1.2.5
s.add_runtime_dependency(%q<*rjb*>, ["*>=* 1.2.5"])
s.add_dependency(%q<*rjb*>, ["*>=* 1.2.5"])
s.add_dependency(%q<*rjb*>, ["*>=* 1.2.5"])
This worked for me.
--Ed