IBM J9 VM should also have INVOKEDYNAMIC_DEFAULT = false #477
Description
Running JRuby 1.7.1 on
$ java -fullversion
java full version JRE 1.7.0 IBM Linux build pxi3270sr3-20121025_01(SR3)
will occasionally crash. They key error message associated with the crash appears to be:
sunvmi.211 * ** ASSERTION FAILED ** at sunvmi.c:498: ((accessClass) != NULL)
Ideally the code in https://github.com/jruby/jruby/blob/master/src/org/jruby/util/cli/Options.java would recognize the IBM VM and disable invokedynamic by default.
Some of the relevant Java System Properties for the IBM VM:
irb(main):004:0> java_import java.lang.System
=> [Java::JavaLang::System]
irb(main):005:0> System.getProperty('java.vm.name')
=> "IBM J9 VM"
irb(main):006:0> System.getProperty('java.vm.version')
=> "2.6"
irb(main):007:0> System.getProperty('java.specification.version')
=> "1.7"
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